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Fiber coupling efficiency on focal plane spot extension caused by turbulence
Optik, 2013Abstract Fiber optic components have been used in high speed free space optical communication systems. The received laser beam in such a system must be coupled into a single-mode fiber at the input of the receiver module. However, laser propagation through atmospheric turbulence medium degrades pattern matching and limits the fiber coupling ...
Xin Zhao, Huilin Jiang, Chen Han
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Microlens Fabrication Technique For An Efficient Laser/Single-Mode Fiber Coupling
SPIE Proceedings, 1987In this paper we describe a new fiber lensing technique in which an index-matched microlens is fabricated on the tip of a single-mode fiber. The lens is formed by etching the fiber until only a "whisker" of pure core material remains. This whisker then is cut and arc melted back to form a lens of proper radius for optimal laser-to-single-mode fiber ...
Hossein Izadpanah, Leslie A. Reith
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Fiber coupling efficiency through turbulence medium for long and short exposures
2012 International Conference on Optoelectronics and Microelectronics, 2012Fiber-optic components have been used in high-speed free-space optical communication systems. The received laser beam in such a system must be coupled into a single-mode fiber at the input of the receiver module. However, laser propagation through atmospheric turbulence medium degrades pattern matching and limits the fiber-coupling efficiency.
Xin Zhao, Huilin Jiang, Hanyu Zheng
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Mode matching for efficient laser diode to single mode fiber coupling
SPIE Proceedings, 2008This paper presents some analysis for the matching between the elliptical mode field of 1550nm high power laser diode with the circular mode field of the single mode fiber in order to obtain high coupling efficiency with relaxed misalignment tolerances.
M. Fadhali +5 more
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Applied Optics, 2015
In practice, due to the laser device and the inevitable error of the processing technique, the laser source emitted from the communication terminal is partially coherent, and is represented as a Gaussian Schell model (GSM). The cross-spectral density function based on the Gaussian model in previous research is replaced by the GSM.
Liying, Tan +3 more
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In practice, due to the laser device and the inevitable error of the processing technique, the laser source emitted from the communication terminal is partially coherent, and is represented as a Gaussian Schell model (GSM). The cross-spectral density function based on the Gaussian model in previous research is replaced by the GSM.
Liying, Tan +3 more
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Reflective-refractive microlens for efficient LED-to-fiber coupling
2005We propose a microlens for improving the coupling efficiency etween a Lambertian emitter and an optical fiber with small numerical aperture. The nonimaging tens uses refraction in the central part for light rays emitted at small angles, and reflection in the peripheral part for rays emitted at large angles.
Rooman, Cathleen +3 more
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Reflective-refractive microlens for efficient light-emitting-diode-to-fiber coupling
Optical Engineering, 2005We propose a microlens for improving the coupling efficiency between a Lambertian emitter and an optical fiber with small numerical aperture. The nonimaging lens uses refraction in the central part for light rays emitted at small angles, and reflection in the peripheral part for rays emitted at large angles.
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Analysis on the laser diode-multimode fiber coupling efficiency
2010A novel screwdriver-like shaping system for the coupling between high-power laser diode and multimode fiber (MMF) is presented. The effect of cutting angle, cutting depth and coupling distance between laser diode and screwdriver-like fiber on the coupling efficiency is analyzed in detail. A method for coupling efficiency calculating is provided.
Feng, Z, An, Y, Zeng, X, Lin, B
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Improvement of fiber coupling efficiency in atmospheric turbulence
Optics and Precision Engineering, 2014宋鸿飞 SONG Hong-fei +4 more
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High Efficiency Fiber Coupled Diode Laser Module
Applied laser, 2013陈艳荣 Chen Yanrong +7 more
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