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In-Fiber Mach-Zehnder Interferometer Based on Waist-Enlarged Taper and Core-Mismatching for Strain Sensing 被引量:1
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作者 张芸山 乔学光 +1 位作者 邵敏 刘钦朋 《Chinese Physics Letters》 SCIE CAS CSCD 2015年第6期84-88,共5页
An in-fiber Mach-Zehnder interferometer for strain measurement is proposed and experimentally demonstrated. The sensor consists of a taper followed by a short section of a multi-mode fiber (MMF) and a dispersion com... An in-fiber Mach-Zehnder interferometer for strain measurement is proposed and experimentally demonstrated. The sensor consists of a taper followed by a short section of a multi-mode fiber (MMF) and a dispersion com- pensating fiber (DCF), which is sandwiched between two single mode fibers (SMFs). The taper is used as a fiber coupler to excite cladding modes in the SMF, and these cladding modes transmit within the MMF and the DCF. The core mode and the cladding modes interfere in the DCF SMF fusion point to form intermodal interference. A well-defined interference spectrum is obtained in the experiment. Selected interference dips are used to measure the strain changes. The experimental results show that this device is sensitive to strain with the wavelength-referenced sensitivity of 2.6 pm/με and the power-referenced sensitivity of 0. 0027 dB/με, respectively. 展开更多
关键词 In-fiber mach-zehnder interferometer Based on Waist-Enlarged Taper and Core-Mismatching for Strain Sensing DCF MZI MMF
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Temperature-induced effect on refractive index of graphene based on coated in-fiber Mach-Zehnder interferometer 被引量:1
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作者 李丽君 宫顺顺 +5 位作者 刘仪琳 徐琳 李文宪 马茜 丁小哲 郭晓丽 《Chinese Physics B》 SCIE EI CAS CSCD 2017年第11期414-419,共6页
The temperature-induced complex refractive index(CRI) effect of graphene is demonstrated theoretically and experimentally based on a graphene coated in-fiber MZI(Mach-Zehnder interferometer). The relationships bet... The temperature-induced complex refractive index(CRI) effect of graphene is demonstrated theoretically and experimentally based on a graphene coated in-fiber MZI(Mach-Zehnder interferometer). The relationships between real and imaginary parts of the graphene CRI and temperature are obtained through investigating the dip wavelength and intensity of the MZI interference spectrum changing with temperature, respectively. The temperature effect of CRI of the graphene is also analyzed theoretically. Both experimental and theoretical studies show that the real part and imaginary part of the CRI nonlinearly decrease and increase with temperature increasing, respectively. This graphene-coated in-fiber MZI structure also possesses the advantages of easy fabrication, miniaturization, low cost and robustness. It has potential applications in nanomaterial-based optic devices for communication and sensing. 展开更多
关键词 in-fiber mach-zehnder interferometer graphene temperature-induced complex refractive index
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Electro-Optical Effect Measurement of Thin-Film Material Using PM Fiber Mach-Zehnder Interferometer
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作者 屠晓光 赵雷 +4 位作者 陈平 陈少武 左玉华 余金中 王启明 《Journal of Semiconductors》 EI CAS CSCD 北大核心 2007年第7期1012-1016,共5页
A polarization-maintaining (PM) fiber Mach-Zehnder (MZ) interferometer has been established to measure the EO effect of very thin film materials with optical anisotropy. Unlike a common MZ interferometer, all the ... A polarization-maintaining (PM) fiber Mach-Zehnder (MZ) interferometer has been established to measure the EO effect of very thin film materials with optical anisotropy. Unlike a common MZ interferometer, all the components are connected via polarization-maintaining fibers. At the same time, a polarized DFB laser with a maximum power output of 10mW is adopted as the light source to induce a large extinction ratio. Here,we take it to determine the electro-optical coefficients of a very thin superlattice structure with GaAs, KTP, and GaN as comparative samples. The measured EO coefficients show good comparability with the others. 展开更多
关键词 electro-optic effect polarization-maintaining fiber mach-zehnder interferometer
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Wavelength-tunable mode-locked fiber laser based on an all-fiber Mach-Zehnder interferometer filter
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作者 杨凡 张丽强 +4 位作者 王明红 陈南光 姚一村 田振 白成林 《Chinese Optics Letters》 SCIE EI CAS CSCD 2023年第4期43-48,共6页
Wavelength-tunable dissipative solitons and amplifier similaritons have been obtained by inserting all-fiber Mach-Zehnder interferometer(MZI) filters with different free spectral ranges(FSRs) in a Yb-doped mode-locked... Wavelength-tunable dissipative solitons and amplifier similaritons have been obtained by inserting all-fiber Mach-Zehnder interferometer(MZI) filters with different free spectral ranges(FSRs) in a Yb-doped mode-locked fiber laser.The MZI filter is fabricated by splicing one segment of seven-core fiber(SCF) between two segments of single-mode fibers.The bandwidth of the filter depends on the FSR of the modulated interference curve and consequently depends on the tapered fiber diameter.Inserting MZI filters with bandwidths in a fiber laser and applying a tensile strain on the tapered SCF,both wavelengthtunable dissipative solitons and amplifier similaritons have been obtained. 展开更多
关键词 mode-locked fiber laser dissipative soliton amplifier similaritons Mach–Zehnder interferometer
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Gain Flattening Filter for Hybrid Sb-Doped EDFA Using All-Fiber Mach-Zehnder Interferometers
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作者 Manjung Han Youngeun Im +2 位作者 Woojin Shin Uh-Chan Ryu K. Oh 《光学学报》 EI CAS CSCD 北大核心 2003年第S1期27-28,共2页
We demonstrate a novel gain-flattening filter based on all fiber Mach-Zehnder interferometers for Sb-doped silica hybrid EDFA. A gain flatness of better than 0.9dB has been achieved for three concatenated filters in C... We demonstrate a novel gain-flattening filter based on all fiber Mach-Zehnder interferometers for Sb-doped silica hybrid EDFA. A gain flatness of better than 0.9dB has been achieved for three concatenated filters in C-band. 展开更多
关键词 EDFA in In of for Gain Flattening Filter for Hybrid Sb-Doped EDFA Using All-fiber mach-zehnder interferometers SB
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基于双端Mach-Zehnder的电缆舞动监测系统设计
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作者 衣文索 寇汉鹏 +3 位作者 聂大禹 冯振华 陈学峰 王普莫 《吉林大学学报(理学版)》 CAS 北大核心 2024年第5期1248-1253,共6页
针对传统电缆舞动检测器在面对电磁干扰和持续供电时灵敏度低、信噪比差、安装复杂和需额外供电等问题,提出一种新型双端Mach-Zehnder(M-Z)电缆扰动监测系统.该系统采用双端光纤M-Z光路结构,可实现长距离、大尺度、多维度的在线监测和... 针对传统电缆舞动检测器在面对电磁干扰和持续供电时灵敏度低、信噪比差、安装复杂和需额外供电等问题,提出一种新型双端Mach-Zehnder(M-Z)电缆扰动监测系统.该系统采用双端光纤M-Z光路结构,可实现长距离、大尺度、多维度的在线监测和结构安全预警,从而实时定位舞动位置.该系统的检波器力学单元采用硅胶弹性体和黄铜质量块推挽式结构,经ANSYS软件进行参数化建模和有限元分析后,得出其固有频率为106.77 Hz,与实验所测数据的相对误差仅为1.65%.实验结果表明,该检测器在0~140 Hz内的相对灵敏度为41.25~66.78 dB (rad/Pa),对舞动信号具有较高灵敏度的检测能力. 展开更多
关键词 M-Z干涉仪 光纤传感 推挽式结构 有限元分析
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High Sensitive Refractive Index Sensor Based on Cladding Etched Photonic Crystal Fiber Mach-Zehnder Interferometer 被引量:2
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作者 Haifeng DU Xiaoyan SUN +2 位作者 Youwang HU Xinran DONG Jianhang ZHOU 《Photonic Sensors》 SCIE EI CAS CSCD 2019年第2期126-134,共9页
A high sensitive refractive index sensor based on the cladding etched photonic crystal fiber (PCF) Mach-Zehnder interferometer (MZI) is proposed, which is spliced a section of photonic crystal fiber between two single... A high sensitive refractive index sensor based on the cladding etched photonic crystal fiber (PCF) Mach-Zehnder interferometer (MZI) is proposed, which is spliced a section of photonic crystal fiber between two single modes fibers (SMFs).The interference fringe of the MZI shifts with the variation of the ambient refractive index (RI). It is found that the RI sensitivity slightly decrease with an increase in the interference length. The sensitivities of MZI with 35inm PCF, 40mm PCF, and 45mm PCF are 106.19nm/RIU, 93.33nm/RIU, and 73.64nm/RIU, respectively, in the range of 13.33 to 1.381. After etched, the RI sensitivity of the MZI could be improved obviously. The RI sensitivities of the MZI with 35 mm PCF are up to 211.53nm/RIU and 359.37nm/RIU when the cladding diameter decreases to 112(im and 91 pm, respectively. Moreover, the sensor is insensitive to temperature, and the measured sensitivity is only 9.21 pm/℃ with the range from 20℃ to 500℃. In addition, the sensor has advantage of simple fabrication, low cost, and high RI sensitivity. 展开更多
关键词 Refractive index sensor mach-zehnder interferometer PHOTONIC crystal fiber hydrofluoric acid
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Simulation of distributed optical fiber disturbance detection system based on Sagnac/Mach-Zehnder interferometer and cross-correlation location 被引量:2
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作者 方捻 李杰 +2 位作者 王陆唐 黄肇明 杨烨 《Journal of Shanghai University(English Edition)》 CAS 2011年第2期115-118,共4页
A distributed optical fiber disturbance detection system consisted of a Sagnac interferometer and a Mach-Zehnder interferometer is demonstrated. Two interferometers outputs are connected to an electric band-pass filte... A distributed optical fiber disturbance detection system consisted of a Sagnac interferometer and a Mach-Zehnder interferometer is demonstrated. Two interferometers outputs are connected to an electric band-pass filter via a detector respectively. The central frequencies of the two filters are selected adaptively according to the disturbance frequency. The disturbance frequency is obtained by either frequency spectrum of the two interferometers outputs. An alarm is given out only when the Sagnac interferometer output is changed. A disturbance position is determined by calculating a time difference with a cross-correlation method between the filter output connected to the Sagnac interferometer and derivative of the filter output connected to the Mach-Zehnder interferometer. The frequency spectrum, derivative and cross-correlation are obtained by a signal processing system. Theory analysis and simulation results are presented. They show that the system structure and location method are effective, accurate, and immune to environmental variations. 展开更多
关键词 Sagnac interferometer mach-zehnder interferometer distributed optical fiber disturbance detection system cross-correlation LOCATION
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Optical bistability in tunable fiber laser using fiber Mach-Zehnder interferometer
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作者 吕国辉 叶红安 +3 位作者 李俊庆 孙秀冬 张昕明 李成 《Chinese Optics Letters》 SCIE EI CAS CSCD 2005年第1期18-20,共3页
In this letter, a novel mechanism of hybrid optical bistability is proposed by using nonlinear mechanism in the frequency domain. This device is based on electro-optical feedback through the fiber Bragg grating on pie... In this letter, a novel mechanism of hybrid optical bistability is proposed by using nonlinear mechanism in the frequency domain. This device is based on electro-optical feedback through the fiber Bragg grating on piezoelectric transducer (PZT) to tune continuous wave (CW) fiber laser. The optical bistable characteristics for two manners of separately alternating input power and bias voltage are discussed. The smallest wavelength shift of the order of 0.001 nm needed to realize a switching process in this optical bistability device is estimated. The potential applications of this device in the optical fiber sensor technique are also discussed. 展开更多
关键词 Continuous wave lasers fiber Bragg gratings fiber optic sensors interferometerS Nonlinear optics Optical bistability Piezoelectric transducers
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Theoretical Analysis and Experiment of Temperature Stability for Fiber-optic Mach-Zehnder Interferometer Filter
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作者 LU Ping, LIU De ming, HUANG De xiu, SUN Jun qiang (Dept. of Optoelectrn. Eng., Huazhong University of Science and Technology, Wuhan 430074, CHN) 《Semiconductor Photonics and Technology》 CAS 2002年第3期150-152,共3页
Fiber optic Mach Zehnder interferometer(MZI) can be used as wavelength multiplexers and demultiplexers. The △ L and △ directly influence the properties of MZI. To lengthen the △ L can demultiplex much more wavelen... Fiber optic Mach Zehnder interferometer(MZI) can be used as wavelength multiplexers and demultiplexers. The △ L and △ directly influence the properties of MZI. To lengthen the △ L can demultiplex much more wavelengths, but when the △ L is longer, the temperature will influence MZI more seriously. A method to solve this problem is proposed, which enables MZI to work stably. The wavelength distance is 0.8 nm, and the extinction ratio is high. 展开更多
关键词 mach-zehnder interferometer COUPLER Wavelength MULTIPLEXERS and DEMULTIPLEXERS
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Ultrafast Laser Fabrication of Novel Fiber Mach-Zehnder Interferometer Sensors and Its Cost-Effective Alternative Manufacturing Methods (Invited Paper)
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作者 Wang Sumei Jiang Lan +6 位作者 Li Benye Zhao Longjiang Yang Jinpeng Wang Mengmeng Xiao Hai Lu Yongfeng Hai-Lung Tsai 《中国激光》 EI CAS CSCD 北大核心 2011年第6期11-16,共6页
The recent progresses of fiber sensor fabrication in our group are reviewed.Novel inline fiber Mach-Zehnder interferometer(MZI) sensors with various structures are proposed and manufactured by femtosecond laser fabric... The recent progresses of fiber sensor fabrication in our group are reviewed.Novel inline fiber Mach-Zehnder interferometer(MZI) sensors with various structures are proposed and manufactured by femtosecond laser fabrication and fusion splicing for high-quality sensing of refractivity-sensitive parameters such as temperature,concentration,humidity,pressure,stress and strain: a) for an MZI sensor with a trench on a single-mode fiber,the refractive index(RI) sensitivity of acetone vapor is about 104 nm/RIU(refractive index unit) and the temperature sensitivity is 51.5 pm/℃ from 200 to 875 ℃;b) For an MZI consisting of two micro-air-cavities,the sensitivity is 501.5 nm/RIU and the detection limit is 1.994×10-6 RIU at the refractive index of 1.4;c) to reduce the fabrication cost,a new fusion-splicing based method is proposed to fabricate MZI sensors;the sensitivity is 664.57 nm/RIU with a detection limit of 1.5×10-6 RIU and its cost is tens of times cheaper than those of commercialized long period fiber Gratings;Also,5×10-5 acetone vapors are successfully detected by the MZI sensors coated with zeolite thin films. 展开更多
关键词 激光技术 干涉计 传感器 MZI
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Reflective Ladder Topology Network Based on White Light Fiber-Optic Mach-Zehnder Interferometer
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作者 Song Li Ferhati Mokhtar Li-Bo Yuan 《Journal of Harbin Institute of Technology(New Series)》 EI CAS 2013年第3期63-66,共4页
In order to improve the multiplexing capability of the optical sensors based on the lower interferential optic fiber sensing technology and the white light fiber-optic Mach-Zehnder interferometer,reflective ladder top... In order to improve the multiplexing capability of the optical sensors based on the lower interferential optic fiber sensing technology and the white light fiber-optic Mach-Zehnder interferometer,reflective ladder topology network ( RLT) with tailored formula was proposed. The topology network consists of 6 rungs sensing elements linked by 5 couplers. Two cases with different choices of couplers were contrasted: one is equal coupling ratio,and the other is tailored coupling ratio. Through the simulation of these two cases,the detailed multiplexing capability was analyzed,and accordingly the experiments were also carried out. The simulation results showed that,the tailored formula enhances the multiplexing capability of the structure. In the first case, the maximum number of sensors which can be multiplexed is 8,and in the other case is 12 fiber optic sensors. The experimental results have a good agreement with numerical simulation results. Thus,it is considered expedient to incorporate RLT into large-scale building,grounds,bridges,dams,tunnels,highways and perimeter security. 展开更多
关键词 fiber-optic sensor white light interferometer MULTIPLEXING technique REFLECTIVE LADDER topology network TAILORED FORMULA
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Time-Modulated Hamiltonian for Interpreting Delayed-Choice Experiments via Mach-Zehnder Interferometers 被引量:2
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作者 李志远 《Chinese Physics Letters》 SCIE CAS CSCD 2016年第8期10-14,共5页
Many delayed-choice experiments based on Mach-Zehnder interferometers (MZI) have been considered and made to address the fundamental problem of wave-particle duality. Conventional wisdom long holds that by inserting... Many delayed-choice experiments based on Mach-Zehnder interferometers (MZI) have been considered and made to address the fundamental problem of wave-particle duality. Conventional wisdom long holds that by inserting or removing the second beam splitter (BS2) in a controllable way, microscopic particles (photons, electrons, etc.) transporting within the MZI can lie in the quantum superposition of the wave and particle state as ψ= aw ψ wave + ap ψ particle. Here we present an alternative interpretation to these delayed-choice experiments. We notice that as the BS2 is purely classical, the inserting and removing operation of the BS2 imposes a time- modulated Hamiltonian H mod (t) = a(t)Hin + b(t)Hout, instead of a quantum superposition of H in and Hour as H = awHin + apHout, to act upon the incident wave function. Solution of this quantum scattering problem, rather than the long held quantum eigen-problem yields a synchronically time-modulated output wave function as ψ mod (t) = a(t) ψ wave +b(t) ψ particle, instead of the stationary quantum superposition state ψ = aw ψ wave + ap ψ particle. As a result, the probability of particle output from the MZI behaves as if they are in the superposition of the wave and particle state when many events over time accumulation are counted and averaged. We expect that these elementary but insightful analyses will shed a new light on exploring basic physics beyond the long-held wisdom of wave-particle duality and the principle of complementarity. 展开更多
关键词 of is MZI in Time-Modulated Hamiltonian for Interpreting Delayed-Choice Experiments via mach-zehnder interferometers for
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Quantitative Visualization of the Thermal Boundary Layer of Forced Convection on a Heated or Cooled Flat Plate with a 30°Leading Edge Using a Mach-Zehnder Interferometer 被引量:1
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作者 Jun Liu Atsuki Komiya 《Journal of Flow Control, Measurement & Visualization》 CAS 2022年第4期99-116,共18页
This study focuses on the experimental measurements of the heat transfer coefficient over a flat plate with a 30° leading edge. Under forced convection by a hot/cold air and flow over a cooled/heated flat plate, ... This study focuses on the experimental measurements of the heat transfer coefficient over a flat plate with a 30° leading edge. Under forced convection by a hot/cold air and flow over a cooled/heated flat plate, the thermal boundary layer and its thickness are quantitatively visualized and measured using a Mach-Zehnder interferometer. In addition, the variation in the local heat transfer coefficient is evaluated experimentally with respect to the air flow velocity and temperature. Differences within the heat transfer performance between the plates are confirmed and discussed. As a result, the average heat transfer performance is about the same for the heated plate and the cooled plate under all air velocity conditions. This contrasts with the theoretical prediction in the case of low air velocity, the reason considered was that the buoyancy at the 30° leading edge blocked air from flowing across the surface of the plate. 展开更多
关键词 Thermal Boundary Layer Forced Convection Heat Transfer Coefficient VISUALIZATION mach-zehnder interferometer
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Compact temperature-insensitive modulator based on a silicon microring assistant Mach-Zehnder interferometer
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作者 张雪键 冯雪 +1 位作者 张登科 黄翊东 《Chinese Physics B》 SCIE EI CAS CSCD 2012年第12期250-257,共8页
On the silicon-on-insulator platform, an ultra compact temperature-insensitive modulator based on a cascaded microring assistant Mach-Zehnder interferometer is proposed and demonstrated with numerical simulation. Acco... On the silicon-on-insulator platform, an ultra compact temperature-insensitive modulator based on a cascaded microring assistant Mach-Zehnder interferometer is proposed and demonstrated with numerical simulation. According to the calculated results, the tolerated variation of ambient temperature can be as high as 134 ℃ while the footprint of such a silicon modulator is only 340 μm2. 展开更多
关键词 integrated modulator temperature sensitivity MICRORING mach-zehnder interferometer
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An Improved Experiment to Determine the‘Past of a Particle’in the Nested Mach-Zehnder Interferometer
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作者 A.Ben-Israel L.Knips +4 位作者 J.Dziewior J.Meinecke A.Danan H.Weinfurter L.Vaidman 《Chinese Physics Letters》 SCIE CAS CSCD 2017年第2期4-6,共3页
We argue that the modification proposed by Li et al. [Chin. Phys. Lett. 32 (2015)050303] to the experiment of Danan et al. [Phys. Rev. Lett. 111 (2013) 240402] does not test the past of the photon as characterized... We argue that the modification proposed by Li et al. [Chin. Phys. Lett. 32 (2015)050303] to the experiment of Danan et al. [Phys. Rev. Lett. 111 (2013) 240402] does not test the past of the photon as characterized by local weak traces. Instead of answering the questions: (i) were the photons in A? (ii) were the photons in B? and (iii) were the photons in C? the proposed experiment measures a degenerate operator answering the questions: (i) were the photons in A? and (ii) were the photons in B and C together? A negative answer to the last question does not tell us if photons were present in B or C. On the other hand, a simple variation of the proposal by Li et al. does provide conceptually better evidence for the past of the pre- and post-selected photon, but this evidence will be in agreement with the results of Danan et al. 展开更多
关键词 LI In in the Nested mach-zehnder interferometer An Improved Experiment to Determine the
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Two-Photon Interference Constructed by Two Hong–Ou–Mandel Effects in One Mach-Zehnder Interferometer
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作者 Rui Liu Ling-dun Kong +5 位作者 Zhon-Xiang Wang Yu Si Wen-Rong Qi Shuang-Yin Huang Chenghou Tu Yongnan Hui-Tian Wang 《Chinese Physics Letters》 SCIE CAS CSCD 2018年第9期14-18,共5页
We present a two-photon interference experiment in a modified Mach-Zehnder (MZ) interferometer in which two Hong-Ou-Mandel effects occur in tandem and construct superposed two-photon states. The signal photons pass ... We present a two-photon interference experiment in a modified Mach-Zehnder (MZ) interferometer in which two Hong-Ou-Mandel effects occur in tandem and construct superposed two-photon states. The signal photons pass both the arms of the MZ interferometer while the idler photons pass one arm only. Interestingly, the probability of the idler photons emerging from any output port still shows a sine oscillation with the two-photon phase difference and it can be characterized only by the indistinguishability of the two-photon amplitudes. We also observe a two-photon interference pattern with a period being equal to the wavelength of the parametric photons instead of the two-photon photonie de Broglie wavelength due to the presence of two-photon phase difference, in particular, with complementary probabilities of finding the two-photon pairs in two output ports. The abundant observations can facilitate a more comprehensive understanding of the two-photon interference. 展开更多
关键词 Mandel Effects in One mach-zehnder interferometer OU Two-Photon Interference Constructed by Two Hong
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Dispersion suppression scheme for Mach-Zehnder interferometer based interleaver using phase shifter
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作者 邹喜华 Pan Wei Luo Bin Qin Zhangmiao Zhang Weili Wang Mengyao 《High Technology Letters》 EI CAS 2006年第1期10-13,共4页
To suppress the dispersion effect, an improved scheme was proposed for Mach-Zehnder intefferometer (MZI) based interleaver. The device consists of an MZI, a fiber loop (FL), and a phase shifter inserted in FL. The... To suppress the dispersion effect, an improved scheme was proposed for Mach-Zehnder intefferometer (MZI) based interleaver. The device consists of an MZI, a fiber loop (FL), and a phase shifter inserted in FL. The introduction of π phase shifter into FI, dramatically suppresses the dispersion effiect. Then the transmission response remains square-like shape, with low frequency deviation and high extinction ratio. Moreover, the lower frequency deviation is achieved by reducing the dispersion coefficient. For 100GHz-spacing interleaver, the 0.08nm deviation is reduced to 0.02nm by replacing G.652 with G.655. 展开更多
关键词 INTERLEAVER mach-zehnder interferometer (MZI) dispersion effect phase shifter
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An Ideal Experiment to Determine the ’Past of a Particle’ in the Nested Mach-Zehnder Interferometer
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作者 李福 Hashmi F. A. +1 位作者 张俊香 朱诗尧 《Chinese Physics Letters》 SCIE CAS CSCD 2015年第5期10-13,共4页
An ideal experiment is designed to determine the past of a particle in the nested Mach-Zehnder interferometer (MZI) by using standard quantum mechanics with quantum non-demolition measurements. We find that when the... An ideal experiment is designed to determine the past of a particle in the nested Mach-Zehnder interferometer (MZI) by using standard quantum mechanics with quantum non-demolition measurements. We find that when the photon reaches the detector, it only follows one arm of the outer interferometer and leaves no trace in the inner MZI. When it goes through the inner MZI, it cannot reach the detector. Our result obtained from the standard quantum mechanics contradicts the statement based on two-state vector formulism, 'the photon did not enter the (inner) interferometer, the photon never left the interferometer, but it was there'. Therefore, the statement and also the overlapping claim are incorrect. 展开更多
关键词 in the Nested mach-zehnder interferometer An Ideal Experiment to Determine the Past of a Particle
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基于Mach-Zehnder干涉仪的自相似激光器压缩系统设计
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作者 庞亮雨 张巧芬 +2 位作者 高梓皓 陈楚浜 吴铭扬 《激光技术》 CAS CSCD 北大核心 2023年第6期803-810,共8页
为了研究自相似脉冲在Mach-Zehnder干涉仪的压缩特性,采用非线性薛定谔方程对自相似脉冲的演化和压缩进行了模拟,分析了基于级联单模光纤的Mach-Zehnder干涉仪的光纤参数对脉冲压缩的影响。结果表明,在不考虑高阶色散的情况下,当上臂的... 为了研究自相似脉冲在Mach-Zehnder干涉仪的压缩特性,采用非线性薛定谔方程对自相似脉冲的演化和压缩进行了模拟,分析了基于级联单模光纤的Mach-Zehnder干涉仪的光纤参数对脉冲压缩的影响。结果表明,在不考虑高阶色散的情况下,当上臂的两种单模光纤长度分别为8.16 m和2.16 m、下臂的单模光纤长度为8.16 m时,获得半峰全宽为27.85 fs、峰值功率为1860.59 W、基座能量比例为10.241%的最佳压缩脉冲;考虑高阶色散时,脉冲在单模光纤中传输呈现出峰值功率增大、基座增大的现象,且脉冲右移不利于输出基座较小的压缩脉冲;当3阶色散系数小于0.001 ps^(3)/km时,利用Mach-Zehnder干涉仪来压缩能获得质量较好的飞秒脉冲。该研究结果对于自相似脉冲的压缩研究具有一定的参考价值。 展开更多
关键词 光纤光学 mach-zehnder干涉仪 自相似脉冲 超短脉冲 基座能量比例 单模光纤
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