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Dynamic OADM Using Tunable Sampled Bragg Gratings Based on Vernier Effect
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作者 WANG Xu YU Chong-xiu YU Zhi-hui 《Semiconductor Photonics and Technology》 CAS 2006年第2期123-125,共3页
A novel dynamic optical add-drop multiplexer(OADM) scheme using tunable sampled fiber Bragg gratings(SFBG) by Vernier effect is firstly proposed. In this scheme, broad wavelength tuning range is achieved by only sligh... A novel dynamic optical add-drop multiplexer(OADM) scheme using tunable sampled fiber Bragg gratings(SFBG) by Vernier effect is firstly proposed. In this scheme, broad wavelength tuning range is achieved by only slightly adjusting the SFBG, the wavelength tuning of OADM will be faster than traditional dynamic OADM. 展开更多
关键词 TUNABLE Sampled fiber Bragg gratings vernier effect OADM
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Plasmon enhancement for Vernier coupled single-mode lasing from ZnO/Pt hybrid microcavities 被引量:5
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作者 Yueyue Wang Feifei Qin +6 位作者 Junfeng Lu Jitao Li Zhu Zhu Qiuxiang Zhu Ye Zhu Zengliang Shi Chunxiang Xu 《Nano Research》 SCIE EI CAS CSCD 2017年第10期3447-3456,共10页
It is essential to develop a single mode operation and improve the performance of lasing in order to ensure practical applicability of microlasers and nanolasers. In this paper, two hexagonal microteeth with varied na... It is essential to develop a single mode operation and improve the performance of lasing in order to ensure practical applicability of microlasers and nanolasers. In this paper, two hexagonal microteeth with varied nanoscaled air-gaps of a ZnO microcomb are used to construct coupled whispering-gallery cavities. This is done to achieve a stable single mode lasing based on Vernier effect without requiring any complicated or sophisticated manipulation to achieve positioning with nanoscale precision. Optical gain and the corresponding ultraviolet lasing performance were improved greatly through coupling with localized surface plasmons of Pt nanoparticles. The ZnO/Pt hybrid microcavities achieved a seven-fold enhancement of intensity of single mode lasing with higher side- mode suppression ratio and lower threshold. The mechanism that led to this enhancement has been described in detail. 展开更多
关键词 ZnO/Pt microcavities whispering-gallery-mode single mode lasing vernier effect surface plasmon coupling ZnO microrod
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Thermal-optic tuning cascaded double ring optical sensor based on wavelength interrogation
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作者 Yanlu Wang Zhiping Yang +2 位作者 Mingyu Li Jian-Jun He Qiushun Li 《Chinese Optics Letters》 SCIE EI CAS CSCD 2022年第1期49-53,共5页
Based on the Vernier effect of the cascaded double ring resonator(CDRR) sensor,a sensor consisting of a microfluidic control system,a sensing ring,and a reference ring with a micro-heater for thermal tuning is propose... Based on the Vernier effect of the cascaded double ring resonator(CDRR) sensor,a sensor consisting of a microfluidic control system,a sensing ring,and a reference ring with a micro-heater for thermal tuning is proposed in this paper.In wavelength interrogation,a broadband spectrometer or a large tunable range laser is not required.The shift of the output spectrum caused by the refractive index change of the sample is converted into the change of the electric power by the thermal tuning heater.Due to the Vernier effect,the sensitivity of the sensor is 20 times higher than that of the single ring.The spectral envelope of the thermal-optic tuning of the sensor was fitted by a Gaussian function in the wavelength range of8 nm.The experimental results showed that the sensitivity was 33.703 W/RIU,and the limit of detection was 1.34×10-5 RIU. 展开更多
关键词 cascaded double ring optical resonators vernier effect thermal-optic effect
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