Tunneling regenerated high-power dual-wavelength laser diodes

2004 ◽  
Author(s):  
Wei L. Guo ◽  
Guang D. Shen ◽  
Jian J. Li ◽  
Ting Wang ◽  
Guo Gao ◽  
...  
Keyword(s):  
High Power ◽  
Laser Diodes ◽  
Dual Wavelength ◽  
Dual Wavelength Laser

High beam quality and high power dual-wavelength laser with VRM

2018 ◽  
Vol 47 (11) ◽  
pp. 1105003
Author(s):  
靳全伟 Jin Quanwei ◽  
庞 毓 Pang Yu ◽  
蒋建锋 Jiang Jianfeng ◽  
谭 亮 Tan Liang ◽  
崔玲玲 Cui Lingling ◽  
...  
Keyword(s):  
High Power ◽  
Beam Quality ◽  
Dual Wavelength ◽  
Dual Wavelength Laser ◽  
High Beam ◽  
High Beam Quality

Dual-wavelength laser diodes based on epitaxially stacked heterostructures

2010 ◽  
Vol 40 (8) ◽  
pp. 697-699 ◽  
Author(s):  
Evgeniya I Davydova ◽  
V P Konyaev ◽  
M A Ladugin ◽  
E I Lebedeva ◽  
Aleksandr A Marmalyuk ◽  
...  
Keyword(s):  
Laser Diodes ◽  
Dual Wavelength ◽  
Dual Wavelength Laser

scholarly journals Monolithically-Integrated Dual-Wavelength Laser Diodes for Optical Pickups.

2002 ◽  
Vol 30 (3) ◽  
pp. 128-132
Author(s):  
Masaaki YURI ◽  
Osamu IMAFUJI ◽  
Yasuhiro KOBAYASHI ◽  
Toshiya FUKUHISA ◽  
Toshikazu OHNISHI ◽  
...  
Keyword(s):  
Laser Diodes ◽  
Dual Wavelength ◽  
Dual Wavelength Laser ◽  
Monolithically Integrated

scholarly journals Variable spot size optical system for a dual-wavelength laser therapy device

2020 ◽  
Vol 13 (04) ◽  
pp. 2050018
Author(s):  
Ningning Dong ◽  
Jinjiang Cui ◽  
Jiangen Xu
Keyword(s):  
Laser Therapy ◽  
Optical System ◽  
High Power ◽  
Spot Size ◽  
Dual Wavelength ◽  
High Power Laser ◽  
Power Laser ◽  
Dual Wavelength Laser ◽  
Beam Combination ◽  
532 Nm

The majority of existing high-power laser therapeutic instruments employ a single wavelength for a single target; thus, they do not meet the requirements for clinical treatment. Therefore, this study designs an optical system for a dual-wavelength high-power laser therapeutic device with a variable spot size. The waist of the short arm of the optical cavity and the G1G2 parameter (G-parameter equivalent cavity method) is calculated using MATLAB software, the spot size and divergence angle on the lens are calculated using an ABCD matrix, and the distance between the treatment spot at different spot sizes and the transformation lens is calculated in order to design the treatment handpiece. Experiments are conducted to analyze the stability at an output power of 532 nm before beam combination and the power loss after beam combination. The results show that the output power stability of the 532-nm beam varies by less than 2% over 150 min, and the loss of both wavelengths is less than 20%, which meets the clinical requirements of the system. The safety performance can meet the requirements of national general standards for medical electrical safety. The proposed dual-wavelength laser therapy instrument has both visible wave and near-infrared wave characteristics; thus, it can accurately target both superficial vessels and vessels with a larger diameter and deeper position. This therapeutic device has the advantages of simple operation, stable and reliable laser output, high security and strong anti-interference ability, and meets the comprehensive clinical treatment demands of vascular diseases.

scholarly journals Thermal and laser properties of Nd:Lu_3Sc_15Ga_35O_12 for high power dual-wavelength laser

2012 ◽  
Vol 20 (7) ◽  
pp. 6944 ◽  
Author(s):  
K. Wu ◽  
L. Z. Hao ◽  
H. H. Yu ◽  
Z. P. Wang ◽  
J. Y. Wang ◽  
...  
Keyword(s):  
High Power ◽  
Dual Wavelength ◽  
Dual Wavelength Laser

Dual-Wavelength High-Power Laser Diodes Fabricated by Selective Fluidic Self-Assembly

2005 ◽  
Vol 44 (4B) ◽  
pp. 2568-2571 ◽  
Author(s):  
Tomoaki Tojo ◽  
Kazuhiko Yamanaka ◽  
Brahm Pal Singh ◽  
Kazutoshi Onozawa ◽  
Daisuke Ueda ◽  
...  
Keyword(s):  
High Power ◽  
Self Assembly ◽  
Laser Diodes ◽  
Dual Wavelength ◽  
High Power Laser ◽  
Power Laser

High-power dual-wavelength laser with disordered Nd:CNGG crystals

2009 ◽  
Vol 34 (2) ◽  
pp. 151 ◽  
Author(s):  
Haohai Yu ◽  
Huaijin Zhang ◽  
Zhengping Wang ◽  
Jiyang Wang ◽  
Yonggui Yu ◽  
...  
Keyword(s):  
High Power ◽  
Dual Wavelength ◽  
Dual Wavelength Laser

Dual wavelength high power laser diodes fabricated by Selective Fluidic Self-Assembly technique

2004 ◽  
Author(s):  
Tomoaki Tojo ◽  
Kazuhiko Yamanaka ◽  
Brahm Pal Singh ◽  
Kazutoshi Onozawa ◽  
Daisuke Ueda ◽  
...  
Keyword(s):  
High Power ◽  
Self Assembly ◽  
Laser Diodes ◽  
Dual Wavelength ◽  
High Power Laser ◽  
Power Laser ◽  
Assembly Technique

Dual wavelength laser-induced damage threshold measurements of alumina/silica and hafnia/silica ultraviolet antireflective coatings

2015 ◽  
Vol 55 (1) ◽  
pp. 104 ◽  
Author(s):  
Marius Mrohs ◽  
Lars Jensen ◽  
Stefan Günster ◽  
Thimotheus Alig ◽  
Detlev Ristau
Keyword(s):  
Damage Threshold ◽  
Dual Wavelength ◽  
Antireflective Coatings ◽  
Dual Wavelength Laser ◽  
Laser Induced Damage
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