High-peak power-pulsed single-mode linearly-polarized LMA fiber amplifier and Q-switch laser

2007 ◽  
Author(s):  
V. Khitrov ◽  
B. Samson ◽  
D. Machewirth ◽  
D. Yan ◽  
K. Tankala ◽  
...  
Keyword(s):  
Peak Power ◽  
Single Mode ◽  
Fiber Amplifier ◽  
High Peak ◽  
High Peak Power ◽  
Linearly Polarized

scholarly journals Er-Doped Tapered Fiber Amplifier for High Peak Power Sub-ns Pulse Amplification

Photonics ◽  
2021 ◽  
Vol 8 (12) ◽  
pp. 523
Author(s):  
Maksim M. Khudyakov ◽  
Andrei E. Levchenko ◽  
Vladimir V. Velmiskin ◽  
Konstantin K. Bobkov ◽  
Svetlana S. Aleshkina ◽  
...  
Keyword(s):  
Peak Power ◽  
Single Mode ◽  
Spectral Width ◽  
Fiber Amplifier ◽  
High Peak ◽  
High Peak Power ◽  
Core Diameter ◽  
Signal Conversion ◽  
Mode Field ◽  
Er Doped

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.

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