High‐power tunable 385‐μm D2O vapor laser optically pumped with a single‐mode tunable CO2TEA laser

1979 ◽  
Vol 50 (2) ◽  
pp. 1125-1127 ◽  
Author(s):  
P. Woskoboinikow ◽  
H. C. Praddaude ◽  
W. J. Mulligan ◽  
D. R. Cohn ◽  
B. Lax
Keyword(s):  
High Power ◽  
Single Mode ◽  
Optically Pumped ◽  
Vapor Laser

Injection seeding for single-mode operation in an optically pumped high-power D2O laser

1995 ◽  
Vol 16 (12) ◽  
pp. 2133-2146 ◽  
Author(s):  
K. Sasaki ◽  
O. Takahashi ◽  
N. Takada ◽  
M. Nagatsu ◽  
T. Tsukishima ◽  
...  
Keyword(s):  
High Power ◽  
Single Mode ◽  
Optically Pumped ◽  
Single Mode Operation ◽  
Mode Operation ◽  
Injection Seeding

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.

High-power copper bromide vapor laser

2021 ◽  
pp. 127363
Author(s):  
I.K. Kostadinov ◽  
K.A. Temelkov ◽  
D.N. Astadjov ◽  
S.I. Slaveeva ◽  
G.P. Yankov ◽  
...  
Keyword(s):  
High Power ◽  
Vapor Laser ◽  
Copper Bromide

High-power, high-pressure, discharge-heated copper vapor laser

1979 ◽  
Vol 30 (1) ◽  
pp. 70-74 ◽  
Author(s):  
I. Smilanski ◽  
G. Erez ◽  
A. Kerman ◽  
L.A. Levin
Keyword(s):  
High Pressure ◽  
High Power ◽  
Copper Vapor Laser ◽  
Vapor Laser ◽  
Copper Vapor ◽  
Pressure Discharge ◽  
High Pressure Discharge

High-power single mode strained-layer lasers emitting at 980 nm

1992 ◽  
Author(s):  
Hal A. Zarem ◽  
Joel S. Paslaski ◽  
Michael Mittelstein ◽  
Jeffrey E. Ungar ◽  
Israel Ury
Keyword(s):  
High Power ◽  
Single Mode ◽  
Strained Layer
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