High power single mode semiconductor laser

2011 ◽  
Author(s):  
J. Boucart
Keyword(s):  
Semiconductor Laser ◽  
High Power ◽  
Single Mode

High power semiconductor laser array with single mode emission

2021 ◽  
Author(s):  
Peng Jia ◽  
Zhi-Jun Zhang ◽  
Yong-Yi Chen ◽  
Zai-Jin Li ◽  
Li Qin ◽  
...  
Keyword(s):  
Semiconductor Laser ◽  
High Power ◽  
Single Mode ◽  
Laser Array ◽  
Power Semiconductor

scholarly journals PHOTOREFRACTIVE TECHNIQUES FOR DIODE LASER BEAM COMBINATION

1992 ◽  
Vol 01 (02) ◽  
pp. 431-445 ◽  
Author(s):  
STUART MacCORMACK ◽  
ROBERT W. EASON
Keyword(s):  
Semiconductor Laser ◽  
High Power ◽  
Single Mode ◽  
Signal Beam ◽  
Laser Array ◽  
Power Semiconductor ◽  
Laser Amplifiers ◽  
Single Mode Laser ◽  
Beam Combination ◽  
Diode Laser Beam

Techniques for high-power laser array beam combination processes involving photo-refractive materials are reviewed. Details of an all semiconductor laser scheme for the amplification and subsequent photorefractive beam clean-up of a diffraction limited single-mode laser output is presented. Powers in excess of 100 mW (>220 mW accounting for Fresnel losses) are obtained in a diffraction limited signal beam, corresponding to an array to diffraction limited beam transfer efficiency of 33%. Details of a reflection geometry phase conjugate master oscillator-power amplifier scheme which offers the possibility of power scaling between a number of high-power semiconductor laser amplifiers are presented. Using this technique, a 13-dB amplification of a diffraction limited signal beam is obtained using a commercially available, 10-stripe gain-guided device with no special coatings.

scholarly journals High-power single-mode triple-ridge waveguide semiconductor laser based on supersymmetry

AIP Advances ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 095216
Author(s):  
Xiaolei Zhao ◽  
Siwei Zeng ◽  
Lance Sweatt ◽  
Lin Zhu
Keyword(s):  
Semiconductor Laser ◽  
High Power ◽  
Single Mode ◽  
Ridge Waveguide

High power single mode triple-ridge waveguide semiconductor laser

2020 ◽  
Author(s):  
Xiaolei Zhao ◽  
Siwei Zeng ◽  
Yeyu Zhu ◽  
Ying Wu ◽  
Lin Zhu
Keyword(s):  
Semiconductor Laser ◽  
High Power ◽  
Single Mode ◽  
Ridge Waveguide

Analysis on High Temperature Characteristic of High Power Semiconductor Laser Array

2020 ◽  
Vol 41 (9) ◽  
pp. 1158-1164
Author(s):  
Bo LI ◽  
◽  
Zhen-fu WANG ◽  
Bo-cang QIU ◽  
Guo-wen YANG ◽  
...  
Keyword(s):  
High Temperature ◽  
Semiconductor Laser ◽  
High Power ◽  
Temperature Characteristic ◽  
Laser Array ◽  
Power Semiconductor

scholarly journals Amplification characteristics in active tapered segmented cladding fiber with large mode area

2021 ◽  
Vol 9 ◽  
Author(s):  
Caijian Xie ◽  
Tigang Ning ◽  
Jingjing Zheng ◽  
Li Pei ◽  
Jianshuai Wang ◽  
...  
Keyword(s):  
High Power ◽  
Heat Load ◽  
Nonlinear Effects ◽  
Single Mode ◽  
Large Mode Area ◽  
High Loss ◽  
Effective Mode Area ◽  
Steady State Rate ◽  
State Rate ◽  
Mode Area

Abstract A kind of tapered segmented cladding fiber (T-SCF) with large mode area (LMA) is proposed, and the mode and amplification characteristics of T-SCFs with concave, linear, and convex tapered structures are investigated based on finite-element method (FEM) and few-mode steady-state rate equation. Simulation results indicate that the concave tapered structure can introduce high loss for high-order modes (HOMs) that is advantageous to achieve single-mode operation, whereas the convex tapered structure provides large effective mode area that can help to mitigate nonlinear effects. Meanwhile, the small-to-large amplification scheme shows further advantages on stripping off HOMs, and the large-to-small amplification scheme decreases the heat load density induced by the high-power pump. Moreover, single-mode propagation performance, effective mode area, and heat load density of the T-SCF are superior to those of tapered step index fiber (T-SIF). These theoretical model and numerical results can provide instructive suggestions for designing high-power fiber lasers and amplifiers.

scholarly journals Design of large mode area all-solid anti-resonant fiber for high-power lasers

2021 ◽  
Vol 9 ◽  
Author(s):  
Xin Zhang ◽  
Shoufei Gao ◽  
Yingying Wang ◽  
Wei Ding ◽  
Pu Wang
Keyword(s):  
High Power ◽  
Single Mode ◽  
Higher Order ◽  
Coupling Scheme ◽  
Resonant Coupling ◽  
Higher Order Modes ◽  
Mode Loss ◽  
Fiber Mode ◽  
Power Needs ◽  
Mode Area

Abstract High-power fiber lasers have experienced a dramatic development over the last decade. Further increasing the output power needs an upscaling of the fiber mode area, while maintaining a single-mode output. Here, we propose an all-solid anti-resonant fiber (ARF) structure, which ensures single-mode operation in broadband by resonantly coupling higher-order modes into the cladding. A series of fibers with core sizes ranging from 40 to 100 μm are proposed exhibiting maximum mode area exceeding 5000 μm2. Numerical simulations show this resonant coupling scheme provides a higher-order mode (mainly TE01, TM01, and HE21) suppression ratio of more than 20 dB, while keeping the fundamental mode loss lower than 1 dB/m. The proposed structure also exhibits high tolerance for core index depression.

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