scholarly journals High-efficiency, continuous-wave Fe:ZnSe mid-IR laser end pumped by an Er:YAP laser

2021 ◽  
Author(s):  
Enhao Li ◽  
Hiyori Uehara ◽  
Weichao Yao ◽  
Shigeki Tokita ◽  
Fedor Potemkin ◽  
...  
Keyword(s):  
High Efficiency ◽  
Continuous Wave ◽  
Ir Laser

scholarly journals High-Efficiency Intracavity Continuous-Wave Green-Light Generation by Quasiphase Matching in a Bulk Periodically Poled MgO:LiNbO3 Crystal

2008 ◽  
Vol 2008 ◽  
pp. 1-4 ◽  
Author(s):  
Shaowei Chu ◽  
Ying Zhang ◽  
Bin Wang ◽  
Yong Bi
Keyword(s):  
High Efficiency ◽  
Continuous Wave ◽  
Green Light ◽  
Frequency Doubling ◽  
Green Laser ◽  
Periodically Poled ◽  
Output Stability ◽  
532 Nm ◽  
Better Than ◽  
Quasiphase Matching

908 mW of green light at 532 nm were generated by intracavity quasiphase matching in a bulk periodically poled MgO:LiNbO3 (PPMgLN) crystal. A maximum optical-to-optical conversion efficiency of 33.5% was obtained from a 0.5 mm thick, 10 mm long, and 5 mol% MgO:LiNbO3 crystal with an end-pump power of 2.7 W at 808 nm. The temperature bandwidth between the intracavity and single-pass frequency doubling was found to be different for the PPMgLN. Reliability and stability of the green laser were evaluated. It was found that for continuous operation of 100 hours, the output stability was better than 97.5% and no optical damage was observed.

High-efficiency continuous-wave Nd:Gd3Ga5O12 eye-safe laser operating at 14234 nm

2013 ◽  
Vol 52 (22) ◽  
pp. 5469 ◽  
Author(s):  
Huanian Zhang ◽  
Xiaohan Chen ◽  
Qingpu Wang ◽  
Xingyu Zhang ◽  
Jun Chang ◽  
...  
Keyword(s):  
High Efficiency ◽  
Continuous Wave

High-Efficiency, Broadly Tunable Continuous-Wave Cr2+:ZnSe laser

2001 ◽  
Author(s):  
Gregory J. Wagner ◽  
Timothy J Carrig ◽  
Richard H. Jarman ◽  
Ralph H. Page ◽  
Kathleen I. Schaffers ◽  
...  
Keyword(s):  
High Efficiency ◽  
Continuous Wave

High-efficiency continuous-wave and Q-switched diode-end-pumped multi-wavelength Nd:YAG lasers

2006 ◽  
Vol 265 (1) ◽  
pp. 301-305 ◽  
Author(s):  
Yu-E Hou ◽  
Ya-Xian Fan ◽  
Jing-Liang He ◽  
Hui-Tian Wang
Keyword(s):  
High Efficiency ◽  
Continuous Wave ◽  
Nd:Yag Lasers ◽  
Multi Wavelength

High-efficiency diode-pumped continuous-wave and passively Q-switched c-cut Nd:LaMgAl11O19 (Nd:LMA) lasers

2018 ◽  
Vol 86 ◽  
pp. 512-516 ◽  
Author(s):  
Jiawei Wang ◽  
Yuzhao Zhang ◽  
Xiaofeng Guan ◽  
Bin Xu ◽  
Huiying Xu ◽  
...  
Keyword(s):  
High Efficiency ◽  
Continuous Wave ◽  
Diode Pumped

Heating of Energetic Materials by Continuous-Wave Near-IR Laser Radiation

2018 ◽  
Vol 54 (4) ◽  
pp. 461-471 ◽  
Author(s):  
L. V. Bachurin ◽  
V. I. Kolesov ◽  
A. N. Konovalov ◽  
V. A. Ul’yanov ◽  
N. V. Yudin
Keyword(s):  
Laser Radiation ◽  
Energetic Materials ◽  
Continuous Wave ◽  
Near Ir ◽  
Ir Laser

scholarly journals High-efficiency frequency doubling of continuous-wave laser light

2011 ◽  
Vol 36 (17) ◽  
pp. 3467 ◽  
Author(s):  
Stefan Ast ◽  
Ramon Moghadas Nia ◽  
Axel Schönbeck ◽  
Nico Lastzka ◽  
Jessica Steinlechner ◽  
...  
Keyword(s):  
High Efficiency ◽  
Continuous Wave ◽  
Laser Light ◽  
Frequency Doubling ◽  
Continuous Wave Laser ◽  
Wave Laser

scholarly journals High efficiency photomodulators for millimeter wave and THz radiation

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
I. R. Hooper ◽  
N. E. Grant ◽  
L. E. Barr ◽  
S. M. Hornett ◽  
J. D. Murphy ◽  
...  
Keyword(s):  
High Efficiency ◽  
Continuous Wave ◽  
Broad Band ◽  
Cost Effective ◽  
Silicon Wafers ◽  
Thz Radiation ◽  
Limiting Factor ◽  
Switching Speed ◽  
Carrier Lifetimes ◽  
Narrow Frequency Band

AbstractPhotomodulators for mm-wave and THz radiation are an essential component for many imaging and signal processing applications. While a myriad of schemes have been devised to enhance photomodulation by enhancing the light-matter interaction, there has been less focus on the photoconductive materials themselves, which are often the limiting factor. Here, we present an approach to increase the photomodulation efficiency of silicon by orders of magnitude, using post treatment of off-the-shelf silicon wafers. The increase in efficiency removes the need for bulky and costly amplified laser sources, and creates the potential for compact and cost-effective modulators for real-world applications. By passivating the surfaces of long bulk-lifetime silicon wafers with Al2O3, the recombination of the photoexcited carriers at the surfaces is mostly eliminated. This results in vastly longer excess carrier lifetimes (up to ~50 ms), with corresponding increases in photoconductivity. The resulting modulators are highly efficient, with the transmission through them being reduced from ~90% to <10% over a narrow frequency band with a continuous wave excitation intensity of just 10 Wm−2, whilst modulation factors of greater than 80% can be achieved over a broad band with similar intensities. We also discuss the limitations of such long-lifetime modulators for applications where the switching speed or spatial resolution of a modulator may be critical.

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