scholarly journals High-gain Er-doped fiber amplifier generating eye-safe MW peak-power, mJ-energy pulses

2008 ◽  
Vol 16 (4) ◽  
pp. 2431 ◽  
Author(s):  
Sebastien Desmoulins ◽  
Fabio Di Teodoro
Author(s):  
Maxim M. Khudyakov ◽  
Mikhail M. Bubnov ◽  
Andrey K. Senatorov ◽  
Denis S. Lipatov ◽  
Mikhail E. Likhachev ◽  
...  
Keyword(s):  

Author(s):  
M. M. Khudyakov ◽  
A. E. Levchenko ◽  
V. V. Velmiskin ◽  
K. K. Bobkov ◽  
D. S. Lipatov ◽  
...  
Keyword(s):  

Author(s):  
M. M. Khudyakov ◽  
A. E. Levchenko ◽  
V. V. Velmiskin ◽  
K. K. Bobkov ◽  
D. S. Lipatov ◽  
...  

Photonics ◽  
2021 ◽  
Vol 8 (12) ◽  
pp. 523
Author(s):  
Maksim M. Khudyakov ◽  
Andrei E. Levchenko ◽  
Vladimir V. Velmiskin ◽  
Konstantin K. Bobkov ◽  
Svetlana S. Aleshkina ◽  
...  

A tapered Er-doped fiber amplifier for high peak power pulses amplification has been developed and tested. The core diameter changed from 15.8 µm (mode field diameter (MFD) 14.5 µm) to 93 µm (MFD 40 µm) along 3.7 m maintaining single-mode performance at 1555 nm (according to the S2-method, the part of the power of high-order modes does not exceed 1.5%). The amplification of 0.9 ns pulses with spectral width below 0.04 nm up to a peak power above 200 kW (limited by self-phase modulation) with a slope pump-to-signal conversion efficiency of 15.6% was demonstrated.


Photonics ◽  
2021 ◽  
Vol 8 (1) ◽  
pp. 15
Author(s):  
Mehmetcan Akbulut ◽  
Leonid Kotov ◽  
Kort Wiersma ◽  
Jie Zong ◽  
Maohe Li ◽  
...  

We report on an eye-safe, transform-limited, millijoule energy, and high average power fiber laser. The high gain and short length of the NP phosphate-glass fibers enable the SBS-free operation with kW level peak power. The output energy is up to 1.3 mJ, and the average power is up to 23 W at an 18 kHz repetition rate with 600 ns pulses (peak power > 2.1 kW). The PER is ≈16 dB and the M2 of the beam is 1.33 × 1.18. The coherent LIDAR Figure Of Merit (FOM) is 174 mJ*sqrt(Hz), which to our knowledge is the highest reported for a fiber laser. We also report 0.75 mJ energy and >3.7 kW peak power with down to 200 ns pulses and up to 1.21 mJ energy with a 3–5 kHz repetition rate operation of the current system.


2021 ◽  
Author(s):  
Guoqiang Xie ◽  
Yicheng Zhou ◽  
Zhipeng Qin ◽  
Peng Yuan ◽  
Jingui Ma

2017 ◽  
Vol 37 (3) ◽  
pp. 0306006
Author(s):  
臧琦 Zang Qi ◽  
邓雪 Deng Xue ◽  
刘杰 Liu Jie ◽  
曹群 Cao Qun ◽  
焦东东 Jiao Dongdong ◽  
...  

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