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Chin. Opt. Lett.
 Home  List of Issues    Issue 11 , Vol. 16 , 2018    10.3788/COL201816.111901

Weak laser pulse signal amplification based on a fiber Brillouin amplifier
Liwen Sheng, Dexin Ba, and Zhiwei Lü
National Key Laboratory of Science and Technology on Tunable Laser, [Harbin Institute of Technology], Harbin 150001, China

Chin. Opt. Lett., 2018, 16(11): pp.111901

Topic:Nonlinear optics
Keywords(OCIS Code): 190.4400  290.5900  160.4330  

We propose a high-gain and frequency-selective amplifier for a weak optical signal based on stimulated Brillouin scattering in a single mode fiber. To be able to satisfy the needs of high gain and high signal-to-noise ratio laser pulse amplification, different fiber lengths and core diameters are used to fulfill this experiment. In the experiment, a 430 nW (peak power) pulsed signal is amplified by 70 dB with a signal-to-noise ratio of 14 dB. The small size, high gain, low cost, and low noise of the fiber Brillouin amplifier make it a promising weak signal amplification method for practical applications such as lidar.

Copyright: © 2003-2012 . This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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Posted online:2018/10/30

Get Citation: Liwen Sheng, Dexin Ba, and Zhiwei Lü, "Weak laser pulse signal amplification based on a fiber Brillouin amplifier," Chin. Opt. Lett. 16(11), 111901(2018)

Note: This work was supported by the National Natural Science Foundation of China (No. 61605034).


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