High-energy fibre CPA system based on a single stage rod type fiber amplifier in double pass configuration

2011 ◽  
Author(s):  
Y. Zaouter ◽  
F. Morin ◽  
C. Hoenninger ◽  
E. Mottay
Keyword(s):  
Fiber Amplifier ◽  
High Energy ◽  
Single Stage ◽  
Double Pass ◽  
Type Fiber

Static and dynamic mode coupling in a double-pass rod-type fiber amplifier

2018 ◽  
Vol 43 (22) ◽  
pp. 5535 ◽  
Author(s):  
Jean-François Lupi ◽  
Mette Marie Johansen ◽  
Mattia Michieletto ◽  
Jesper Lægsgaard
Keyword(s):  
Mode Coupling ◽  
Fiber Amplifier ◽  
Dynamic Mode ◽  
Double Pass ◽  
Type Fiber

Experimental investigation of transverse mode instabilities in a double-pass Yb-doped rod-type fiber amplifier

2017 ◽  
Author(s):  
Christoph Stihler ◽  
Hans-Jürgen Otto ◽  
Cesar Jauregui ◽  
Jens Limpert ◽  
Andreas Tünnermann
Keyword(s):  
Experimental Investigation ◽  
Transverse Mode ◽  
Fiber Amplifier ◽  
Double Pass ◽  
Type Fiber

80-W dual-wavelength green pulsed laser based on a Yb-doped rod-type fiber amplifier

2021 ◽  
Vol 127 (5) ◽  
Author(s):  
Yong-Ho Cha ◽  
Yonghee Kim ◽  
Hyunmin Park ◽  
Gwon Lim ◽  
Do-Young Jeong
Keyword(s):  
Pulsed Laser ◽  
Fiber Amplifier ◽  
Dual Wavelength ◽  
Type Fiber

scholarly journals Numerical analysis and optimization of remotely pumped double pass Erbium doped fiber amplifier

2007 ◽  
Vol 4 (5) ◽  
pp. 172-178 ◽  
Author(s):  
Nadir Hossain ◽  
Ahmed W. Naji ◽  
Vivekanand Mishra ◽  
Abbou F. Mohammed ◽  
Hairul A. A. Rashid ◽  
...  
Keyword(s):  
Numerical Analysis ◽  
Fiber Amplifier ◽  
Double Pass ◽  
Erbium Doped Fiber Amplifier ◽  
Erbium Doped

Single Stage C-Band Erbium-Doped Fiber Amplifier (EDFA) Development and Performance Evaluation

2018 ◽  
Vol 7 (2) ◽  
pp. 41-49
Author(s):  
Sami D. Alaruri
Keyword(s):  
Conversion Efficiency ◽  
Noise Figure ◽  
Fiber Amplifier ◽  
Single Stage ◽  
Erbium Doped Fiber Amplifier ◽  
Signal Gain ◽  
Laser Pump ◽  
Mathematical Expressions ◽  
Erbium Doped ◽  
And Performance

In this work, a single-stage C-band erbium-doped fiber amplifier (EDFA) has been constructed and characterized. Gain (G) and noise figure (NF) measurements collected for the C-band EDFA as a function of wavelength (1528.8 to 1562.3 nm) and laser pump powers are discussed. Further, the EDFA conversion efficiency (CE) as a function of laser pump powers is presented. Simplified mathematical expressions for the EDFA gain, NF, and CE are provided. The C-band EDFA signal gain remained flat in the spectral region 1539 to 1562 nm. Moreover, the C-band EDFA NF increased with wavelength and decreased with the 1480 nm laser pump powers. Additionally, the C-band EDFA maximum achieved conversion efficiency and signal gain is 22.64% at P1=19.49 mW and 22.6 dB at 1531.1 nm, respectively.

scholarly journals Direct Amplification of High Energy Pulsed Laser in Fiber-Single Crystal Fiber with High Average Power

Crystals ◽  
2019 ◽  
Vol 9 (4) ◽  
pp. 216
Author(s):  
Feng Li ◽  
Zhi Yang ◽  
Zhiguo Lv ◽  
Yang Yang ◽  
Yishan Wang ◽  
...  
Keyword(s):  
Laser Pulse ◽  
Single Crystal ◽  
Stimulated Raman Scattering ◽  
Average Power ◽  
High Energy ◽  
Laser Source ◽  
High Average Power ◽  
Double Pass ◽  
Two Stage ◽  
Crystal Fiber

A laser master oscillator power amplifier (MOPA) system consisting of a fiber amplifier and a two-stage Yb:YAG single crystal fiber (SCF) is experimentally studied. The nonlinear stimulated Raman scattering (SRS) is avoided by limiting the output power of the fiber preamplifier to 600 mW. Due to the benefit from the low nonlinearity and high amplification gain of the SCF, a laser pulse duration of 16.95 ps and a high average power of 41.7 W at a repetition rate of 250 kHz are obtained by using a two-stage polarization controlled double-pass amplification of Yb:YAG SCF, corresponding to an output energy of 166.8 μJ and a peak power of 9.84 MW, respectively. The polarization controlled SCF amplification scheme achieved a gain as high as more than 69 times. During the amplification, the spectra gain narrowing effect and the polarization controlled four-pass amplification setup are also studied. The laser spectrum is narrowed from over 10 nm to less than 3 nm, and the pulse width is also compressed to hundreds of femtosecond by dechirping the laser pulse. This compact-sized, cost-effective laser source can be used in laser micromachining, or as the seeder source for generating much higher power and energy laser for scientific research. For some applications which need femtosecond laser, this laser source can also be compressed to femtosecond regime.

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