The development of low voltage room temperature continuous wave laser diodes

1995 ◽  
Vol 150 ◽  
pp. 790-796 ◽  
Author(s):  
R.L. Gunshor ◽  
J. Han ◽  
A.V. Nurmikko ◽  
A. Salokatve
Keyword(s):  
Room Temperature ◽  
Continuous Wave ◽  
Low Voltage ◽  
Laser Diodes ◽  
Continuous Wave Laser ◽  
Wave Laser

scholarly journals Room Temperature CW Operation of GaN-based Blue Laser Diodes by GaInN/GaN optical guiding layers

2000 ◽  
Vol 5 (S1) ◽  
pp. 1-7 ◽  
Author(s):  
Masayoshi Koike ◽  
Shiro Yamasaki ◽  
Yuta Tezen ◽  
Seiji Nagai ◽  
Sho Iwayama ◽  
...  
Keyword(s):  
Room Temperature ◽  
Continuous Wave ◽  
Laser Diodes ◽  
Threshold Current ◽  
Crystal Defects ◽  
Blue Laser ◽  
Buffer Layers ◽  
Continuous Wave Laser ◽  
Cw Operation ◽  
First Time

GaN-based short wavelength laser diodes are the most promising key device for a digital versatile disk. We have been improving the important points of the laser diodes in terms of optical guiding layers, mirror facets. The continuous wave laser irradiation at room temperature could be achieved successfully by reducing the threshold current to 60 mA (4 kA/cm2). We have tried to apply the multi low temperature buffer layers to the laser diodes for the first time to reduce the crystal defects.

scholarly journals Photo-induced radical polarization and liquid-state dynamic nuclear polarization using fullerene nitroxide derivatives

2017 ◽  
Vol 19 (47) ◽  
pp. 31823-31829 ◽  
Author(s):  
Guoquan Liu ◽  
Shu-Hao Liou ◽  
Nikolay Enkin ◽  
Igor Tkach ◽  
Marina Bennati
Keyword(s):  
Laser Irradiation ◽  
Spin Polarization ◽  
Dynamic Nuclear Polarization ◽  
Liquid State ◽  
Room Temperature ◽  
Nuclear Polarization ◽  
Continuous Wave ◽  
Continuous Wave Laser ◽  
Wave Laser ◽  
Nmr Signal Enhancement

Continuous wave laser irradiation of fullerene–nitroxide derivatives at room temperature leads to spin polarization and NMR signal enhancement of toluene solvent protons.

Continuous-wave laser diodes based on epitaxially integrated InGaAs/AlGaAs/GaAs heterostructures

2019 ◽  
Vol 49 (10) ◽  
pp. 905-908
Author(s):  
M A Ladugin ◽  
N V Gul'tikov ◽  
A A Marmalyuk ◽  
V P Konyaev ◽  
A V Solov'eva
Keyword(s):  
Continuous Wave ◽  
Laser Diodes ◽  
Continuous Wave Laser ◽  
Wave Laser

scholarly journals Optical Spectra Properties and Continuous-Wave Laser Performance of Tm,Y:CaF2 Single Crystals

2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
Jingxin Ding ◽  
Beibei Zhao ◽  
Weiwei Ma ◽  
Hao Yu ◽  
Xiaobo Qian ◽  
...  
Keyword(s):  
Cross Section ◽  
Local Structure ◽  
Room Temperature ◽  
Continuous Wave ◽  
Spectroscopic Properties ◽  
Diode Pumping ◽  
Continuous Wave Laser ◽  
Vertical Bridgman ◽  
Spectra Properties ◽  
Wave Laser

3 at.% Tm, x at.% Y:CaF2 crystals (x=0, 0.5, 1, 2, and 3) were grown by the vertical Bridgman method and investigated. Codoping Y3+ ions can manipulate the local structure of Tm3+ ions in the CaF2 crystal and then improve the spectroscopic properties. Compared with 3 at.% Tm:CaF2, 3 at.% Tm, 3 at.% Y:CaF2 crystal has several advantages. Firstly, the absorption cross section is improved from 0.35 × 10−20 cm−2 to 0.45 × 10−20 cm−2 at 767 nm, and the fluorescence intensity had elevated 3.4 times. Secondly, the linewidth of the fluorescence spectrum and lifetime also increased from 164 nm to 191 nm and from 6.16 ms to 8.15 ms at room temperature, respectively. Furthermore, quantum efficiency improved from 58.2% to 80.3%. The maximum laser output power of 583 mW and slope efficiency of 25.3% were achieved in 3 at.% Tm, 3 at.% Y:CaF2 crystal under 790 nm diode pumping.

Highly Efficient Continuous-Wave Laser Oscillation in Microchip Yb:YAG Laser at Room Temperature

2007 ◽  
Vol 46 (No. 7) ◽  
pp. L132-L134 ◽  
Author(s):  
Shinichi Matsubara ◽  
Tsutomu Ueda ◽  
Sakae Kawato ◽  
Takao Kobayashi
Keyword(s):  
Room Temperature ◽  
Continuous Wave ◽  
Laser Oscillation ◽  
Continuous Wave Laser ◽  
Highly Efficient ◽  
Wave Laser

scholarly journals Room temperature continuous-wave laser performance of LD pumped Er:Lu_2O_3 and Er:Y_2O_3 ceramic at 27 μm

2014 ◽  
Vol 22 (16) ◽  
pp. 19495 ◽  
Author(s):  
Li Wang ◽  
Haitao Huang ◽  
Deyuan Shen ◽  
Jian Zhang ◽  
Hao Chen ◽  
...  
Keyword(s):  
Room Temperature ◽  
Continuous Wave ◽  
Continuous Wave Laser ◽  
Laser Performance ◽  
Wave Laser

Photonic Crystal Nanocavity Continuous-wave Laser Operation at Room Temperature

2006 ◽  
Author(s):  
Masahiro Nomura ◽  
Satoshi Iwamoto ◽  
Katsuyuki Watanabe ◽  
Naoto Kumagai ◽  
Yoshiaki Nakata ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Room Temperature ◽  
Continuous Wave ◽  
Laser Operation ◽  
Continuous Wave Laser ◽  
Wave Laser
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