Results 81 to 90 of about 260,156 (297)

High-power, broadly tunable, and 
low-quantum-defect KGd1-xLux(WO4)2:Yb3+ channel waveguide lasers [PDF]

, 2010
In KGd1-xLux(WO4)2:Yb3+ channel waveguides grown onto KY(WO4)2 substrates by liquid phase epitaxy and microstructured by Ar+ beam etching, we produced 418 mW of continuous-wave output power at 1023 nm with a slope efficiency of 71% and a threshold of 40 ...
Aravazhi, Shanmugam, Geskus, Dimitri, Pollnau, Markus, Wörhoff, Kerstin   +3 more
core   +3 more sources

A 7.08-kW YAG/Nd:YAG/YAG Composite Ceramic Slab Laser with Dual Concentration Doping

IEEE Photonics Journal, 2017
The theoretical design and experiment research on the YAG/Nd:YAG/YAG composite ceramic slab laser amplifier were conducted. The numerical analysis was used to obtain the design of YAG/Nd:YAG/YAG composite ceramic slab. A high optical
Mi Li, Hao Hu, Qingsong Gao, Juntao Wang, Jian Zhang, Yingcheng Wu, Tangjian Zhou, Liu Xu, Chun Tang, Na Zhao, Peng Liu   +10 more
doaj   +1 more source

Room temperature continuous wave operation of single-mode, edge-emitting photonic crystal Bragg lasers [PDF]

, 2008
We report the first room temperature CW operation of two dimensional single-mode edge-emitting photonic crystal Bragg lasers. Single-mode lasing with single-lobed, diffraction limited far-fields is obtained for 100μm wide and 550μm long on-chip devices ...
DeRose, Guy A., Scherer, Axel, Sun, Xiankai, Yariv, Amnon, Zhu, Lin   +4 more
core   +2 more sources

High Power Continuous Wave Yb:YAG Composite Crystal Zigzag Slab Amplifier at Room Temperature

IEEE Photonics Journal, 2017
A 7.07-kW Yb:YAG composite crystal zigzag slab amplifier at room temperature is developed and demonstrated, the optical-to-optical efficiency is about 29.5% and the slope efficiency is 39.5%, respectively, with the pumping power of 19.98 kW
Mi Li, Tangjian Zhou, Liu Xu, Qingsong Gao, Hao Hu, Yingcheng Wu, Dan Wang, Jianmin Li, Jun Lei, Wenqiang Lv, Yi Yu, Zhenhai Wu, Na Zhao   +12 more
doaj   +1 more source

A high-energy 1064-nm picosecond master oscillator laser with an optic-optic efficiency of 38%

AIP Advances, 2018
A high-energy high optic-optic efficiency 808-nm diode-end-pumped 1064-nm Nd:YVO4 picosecond master oscillator laser was demonstrated, and a 3×3×7 mm Nd:YVO4 crystal with a doped concentration of 0.5% was adopted.
Huan He, Xuesheng Liu, Yiheng Song, Congcong Wang, Mingzhen Cao, Zhiyong Wang   +5 more
doaj   +1 more source

Electrically driven photonic crystal nanocavity devices

, 2012
Interest in photonic crystal nanocavities is fueled by advances in device performance, particularly in the development of low-threshold laser sources. Effective electrical control of high performance photonic crystal lasers has thus far remained elusive ...
Ellis, Bryan, Haller, Eugene E., Harris, James, Majumdar, Arka, Mayer, Marie A., Petykiewicz, Jan, Sarmiento, Tomas, Shambat, Gary, Vuckovic, Jelena   +8 more
core   +1 more source

Four-Sided Symmetrical Transversely Pumped Model for Diode-Pumped Rare Gas Lasers

Photonics
Diode-pumped rare gas lasers (DPRGLs) have attracted significant attention as potential high-power laser sources. This paper proposes a four-sided transverse pumping scheme to address the energy concentration degree limitations in existing side-pumped ...
Hongyu Liu, Donglin Ma, Hanyuan Chen
doaj   +1 more source

Performance of efficient Q-switched diode-laser-pumped Nd:YAG and Ho:YLF lasers for space applications [PDF]

Solid-state lasers pumped by continuous-wave diode lasers can be Q-switched to obtain high peak power output pulses. The dependence of laser-pulse energy, average output power, peak power, and pulse width on pulse-repetition frequency in Q-switched Nd ...
Cowles, K., Hemmati, H., Marshall, W. K.
core   +1 more source

Efficient Dual-Wavelengths Continuous Mode Lasers by End-Pumping of Series Nd:YVO4 and Nd:GdVO4 Crystals and Speckle Reduction Study

Photonics, 2019
In this paper, diode pumped solid state (DPSS) lasers based on end-pumping series Nd:YVO4 and Nd:GdVO4 crystals were studied. Dual-, tri-, and quad-wavelength emissions were achieved.
Mahmoud Mohamed, Bin Zhang, Qianli Ma, Josh Kneller, Chang-Qing Xu   +4 more
doaj   +1 more source

Direct Side Pumping of Double-Clad Fiber Laser by Laser Diode Array Through the Use of Subwavelength Grating Coupler

IEEE Photonics Journal, 2012
An electron-beam-fabricated subwavelength grating coupler for direct side coupling of light emission from a high-power laser diode array (LDA) was studied theoretically and implemented experimentally.
C. W. Huang, C. L. Chang, D. Y. Jheng, K. Y. Hsu, S. L. Huang, D. W. Huang   +5 more
doaj   +1 more source