2kW, 22GHz narrow linewidth polarization maintaining fiber amplifier with near-diffraction-limited beam quality

2019 ◽  
Author(s):  
Yanshan Wang ◽  
zhe chang ◽  
yi ma ◽  
wanjing peng ◽  
weiwei ke ◽  
...  
Keyword(s):  
Beam Quality ◽  
Fiber Amplifier ◽  
Narrow Linewidth ◽  
Polarization Maintaining Fiber ◽  
Polarization Maintaining

scholarly journals Environmentally stable Er-fiber mode-locked pulse generation and amplification by spectrally filtered and phase-biased nonlinear amplifying long-loop mirror

2019 ◽  
Vol 7 ◽  
Author(s):  
Zhengru Guo ◽  
Qiang Hao ◽  
Junsong Peng ◽  
Heping Zeng
Keyword(s):  
Repetition Rate ◽  
Fiber Lasers ◽  
Fiber Amplifier ◽  
Mode Locking ◽  
Pulse Generation ◽  
Erbium Doped ◽  
Polarization Maintaining Fiber ◽  
Fiber Mode ◽  
Polarization Maintaining ◽  
Loop Mirror

We report on environmentally stable long-cavity ultrashort erbium-doped fiber lasers, which self-start mode-locking at quite low thresholds by using spectrally filtered and phase-biased nonlinear amplifying long-loop mirrors. By employing 100-m polarization-maintaining fiber (PMF) in the nonlinear loop, the fundamental repetition rate reaches 1.84 MHz and no practical limitation is found to further decrease the repetition rate. The filter used in the long loop not only suppresses Kelly sidebands of the solitons, but also eliminates the amplified spontaneous emission which exists widely in low-repetition-rate ultrafast fiber lasers. The bandwidth of the filter is optimized by using a numerical model. The laser emits approximately 3-ps pulses with an energy of 17.4 pJ, which is further boosted to $1.5~\unicode[STIX]{x03BC}\text{J}$ by using a fiber amplifier.

560  W all fiber and polarization-maintaining amplifier with narrow linewidth and near-diffraction-limited beam quality

2015 ◽  
Vol 54 (24) ◽  
pp. 7258 ◽  
Author(s):  
Yang Ran ◽  
Rumao Tao ◽  
Pengfei Ma ◽  
Xiaolin Wang ◽  
Rongtao Su ◽  
...  
Keyword(s):  
Beam Quality ◽  
Narrow Linewidth ◽  
Polarization Maintaining

EXPERIMENTAL RESEARCH OF Nd3+-DOPED POLARIZATION MAINTAINING FIBER AMPLIFIER

2008 ◽  
Vol 22 (31) ◽  
pp. 3061-3066
Author(s):  
GUANG-JUN REN ◽  
ZHEN WEI ◽  
BAO-HE YANG ◽  
JIAN-QUAN YAO
Keyword(s):  
Single Mode ◽  
Fiber Amplifier ◽  
High Gain ◽  
Low Noise ◽  
Small Signal Gain ◽  
Small Signal ◽  
Optical Fiber Amplifier ◽  
Polarization Maintaining Fiber ◽  
Polarization Maintaining ◽  
Outer Cladding

We demonstrate a double-clad Nd 3+-doped polarization maintaining fiber (PMF) amplifier at 1064 nm for a compact configuration of a high-gain and low-noise optical fiber amplifier. The proposed 125 μm inner-cladding diameter in the double-clad fiber provides the single-mode propagation of the signal lightwave into its doped core without misguiding the signal lightwave into the outer-cladding. The small signal gain of Nd 3+-doped fiber amplifier is 24 dB, and its noise coefficient is less than 8 dB.

Frequency modulated and polarization maintaining fiber laser with narrow linewidth

2007 ◽  
Vol 274 (2) ◽  
pp. 392-395 ◽  
Author(s):  
Renjie Zhang ◽  
Benli Yu ◽  
Zhigang Cao ◽  
Shenglai Zhen ◽  
Jun Zhu ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Narrow Linewidth ◽  
Polarization Maintaining Fiber ◽  
Polarization Maintaining

3.53 kW average power all-fiber amplifier with 0.16nm narrow-linewidth single-mode beam quality

2018 ◽  
Author(s):  
Yi Shi ◽  
Quihui Chu ◽  
Li'e Ouyang ◽  
Feng Jing ◽  
Jianjun Wang ◽  
...  
Keyword(s):  
Beam Quality ◽  
Average Power ◽  
Single Mode ◽  
Fiber Amplifier ◽  
Narrow Linewidth ◽  
Mode Beam

scholarly journals Study of Nd3+-doped polarization maintaining fiber amplifier

2009 ◽  
Vol 58 (6) ◽  
pp. 3897
Author(s):  
Ren Guang-Jun ◽  
Wei Zhen ◽  
Zhang Qiang ◽  
Yao Jian-Quan
Keyword(s):  
Fiber Amplifier ◽  
Polarization Maintaining Fiber ◽  
Polarization Maintaining
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