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Arrayed Lensed Fibers Collectively Fabricated Utilizing UV-Curable Fluorinated Polymer
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作者 Kyung-Rok Kim Manjung Han +1 位作者 Selee Chang K. Oh 《光学学报》 EI CAS CSCD 北大核心 2003年第S1期90-91,共2页
A novel fabrication method for lensed fiber array has been proposed utilizing UV-curable fluorinated polymer, whose refractive index is matched to fused silica. The structure is composed of three segments; single mode... A novel fabrication method for lensed fiber array has been proposed utilizing UV-curable fluorinated polymer, whose refractive index is matched to fused silica. The structure is composed of three segments; single mode fiber, coreless silica fiber and UV-curable polymer lens-tip. Flexible control of the curvature of lens-tip was realized by control of deposited volume of the liquid polymer and free-space interconnection performances are characterized. 展开更多
关键词 UV in AS of for were Arrayed lensed fibers Collectively Fabricated Utilizing UV-Curable Fluorinated Polymer CSF HAVE MODE
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Characteristics of High-power GaAs Laser Beams and Their Coupling with Fibers 被引量:1
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作者 YU Henry Hai-ying CUI Bi-feng TIAN Zeng-xia LIU Ying ZOU De-shu SHEN Guang-di 《Semiconductor Photonics and Technology》 CAS 2005年第4期233-238,共6页
The beams of 980nm high-power LDs are analyzed, and the reasons that aspect ratio of LD beams is high are explained. It is certified by the test that cylindrical lens can efficiently compress the perpendicular diverge... The beams of 980nm high-power LDs are analyzed, and the reasons that aspect ratio of LD beams is high are explained. It is certified by the test that cylindrical lens can efficiently compress the perpendicular divergence angle of the beam. Some typical and popular lensed fibers were compared and analyzed according to coupling characteristics. The factors which affect the coupling efficiency and tolerance of the wedged-shaped GRIN tipped lensed fiber are pointed out, and some methods to reduce the coupling loss of the lensed fibers are proposed finally. 展开更多
关键词 GaAs LD lensed fibers Optical coupling mode GRIN fibers
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Application of slant lens fiber in reflective optical fiber displacement sensor
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作者 YANG Rui feng LANG Guo wei +3 位作者 GUO Chen xia ZHANG Peng HU Chen hao GAI Ting 《Journal of Measurement Science and Instrumentation》 CAS CSCD 2018年第3期302-306,共5页
This paper introduces the application of a slant lens fiber in a reflective fiber optical displacement sensor, namely the receiving fiber use the slant lens fiber. Based on the characteristic formula expression of the... This paper introduces the application of a slant lens fiber in a reflective fiber optical displacement sensor, namely the receiving fiber use the slant lens fiber. Based on the characteristic formula expression of the intensity modulation of planar single fiber pair, a mathematic model of single fiber fair intensity modulation is established. After simulation experiment, the influence of fiber spacing, fiber core diameter and fiber numerical aperture on the modulation characteristics of the sensor is summarized. 展开更多
关键词 slant lens fiber single fiber pair modulation function fiber displacement sensor
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Microball lens integrated fiber probe for optical frequency domain imaging 被引量:1
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作者 Jae-Ho Han J. U. Kang 《Chinese Optics Letters》 SCIE EI CAS CSCD 2011年第9期29-31,共3页
An integrated microball lens fiber catheter probe is demonstrated, which has better lateral resolution and longer working distance than a corresponding bare fiber probe with diverging beam for Fourier domain optical c... An integrated microball lens fiber catheter probe is demonstrated, which has better lateral resolution and longer working distance than a corresponding bare fiber probe with diverging beam for Fourier domain optical coherence tomography (FDOCT). Simulation results are shown to gain the effect of the distance between the mieroball lens and the bare fiber to the focusing plane and beam width. The freedom of modifying the working distance and lateral resolution is shown. This is achieved by changing the gap distance between the single-mode fiber and the microball lens within the packaged surgical needle catheter without using an additional beam expander having a fixed length. The probe successfully acquired crosssectional images of ocular tissues from an animal sample with the proposed miniaturized imaging probe. 展开更多
关键词 Microball lens integrated fiber probe for optical frequency domain imaging THAN
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Fabrication method of ultra-small gradient-index fiber probe 被引量:1
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作者 Chi Wang Fang Zhang +2 位作者 Shu-Bo Bi Xue-Qin Xia Ting-Ting Xu 《Advances in Manufacturing》 SCIE CAS 2014年第4期327-332,共6页
Fabrication method and device of ultra-small gradient-index (GRIN) fiber probe were investigated in order to explore the development of ultra-small probes for optical coherence tomography (OCT) imaging. The beam- ... Fabrication method and device of ultra-small gradient-index (GRIN) fiber probe were investigated in order to explore the development of ultra-small probes for optical coherence tomography (OCT) imaging. The beam- expanding effect of no-core fiber (NCF) and the focusing properties of the GRIN fiber lens were analyzed based on the model of GRIN fiber probe consisting of single-mode fiber (SMF), NCF and GRIN fiber lens. A stereo micro- scope based system was developed to fabricate the GRIN fiber probe. A fiber fusion splicer and an ultrasonic cleaver were used to weld and cut the fiber respectively. A con- focal microscopy was used to measure the dimensions of probe components. The results show that the sizes of probe components developed are at the level of millimeter. Therefore, the proposed experimental system meets the fabrication requirements of an ultra-small self-focusing GRIN fiber probe. This shows that this fabrication device and method can be employed in the fabrication of ultra- small self-focusing GRIN fiber probe and applied in the study of miniaturized optical probes and OCT systems. 展开更多
关键词 Optical coherence tomography (OCT) Gradient-index (GRIN) fiber probe GRIN fiber lens No-core fiber (NCF)
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Improved optical coupling based on a concave cavity lens fabricated by optical fiber facet etching
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作者 Kanglin Li Jiangbing Du +2 位作者 Weihong Shen Jiacheng Liu Zuyuan He 《Chinese Optics Letters》 SCIE EI CAS CSCD 2021年第5期12-18,共7页
We report a low-fabrication-complexity and wideband fiber lens,which is formed by fiber facet etching and filling high refractive index UV adhesive.The optical field can be significantly shrunk by the facet lens so as... We report a low-fabrication-complexity and wideband fiber lens,which is formed by fiber facet etching and filling high refractive index UV adhesive.The optical field can be significantly shrunk by the facet lens so as to obtain improved optical coupling.Numerical simulations were carried out for different coupling conditions,on both fundamental mode and highorder mode,for a nine-mode fiber.The fundamental mode area can be reduced from 152.17 to 12.57μm^(~2),and the coupling loss between the fiber lens and a photonic waveguide can be reduced to-2.9 d B with over 1000 nm 3 d B bandwidth. 展开更多
关键词 fiber lens optical coupling
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Theoretical analysis of lens array for uniform irradiation on target in multimode fiber lasers
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作者 林健 许立新 +1 位作者 王声波 韩海啸 《Chinese Optics Letters》 SCIE EI CAS CSCD 2014年第10期71-76,共6页
We propose and demonstrate a scheme to smooth and shape the on-target patterns in multimode fiber lasers, which includes expanding-collimating system and lens array (LA). A smooth pattern with flat-top and sharp-edg... We propose and demonstrate a scheme to smooth and shape the on-target patterns in multimode fiber lasers, which includes expanding-collimating system and lens array (LA). A smooth pattern with flat-top and sharp-edge profiles can be obtained with the irradiation nonuniformity decreasing significantly. We analyze the effects of the parameters such as defocus distance, the tilt angles, the number of the incident fiber lasers, and the diffraction-weakened LA on the uniformity irradiation of target by numerical simulations. 展开更多
关键词 Theoretical analysis of lens array for uniform irradiation on target in multimode fiber lasers
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