scholarly journals Optimization of power supply mode of single-mode laser diode by ratio of current and integral spectrum parameter

2021 ◽  
Vol 2127 (1) ◽  
pp. 012045
Author(s):  
N V Berezovskaya ◽  
V Bliznyuk ◽  
V A Parshin ◽  
A E Tarasov
Keyword(s):  
Semiconductor Lasers ◽  
Laser Diode ◽  
Single Mode ◽  
Optical Methods ◽  
Electronic Measuring ◽  
Mode Laser ◽  
Single Mode Laser ◽  
Optimal Value ◽  
Technological Base ◽  
Supply Mode

Abstract Bursting development of the technological base of semiconductor quantum electronics determined the width of the domain for use of semiconductor lasers in optical-electronic measuring systems based on the optical methods of stream research. In order to improve the accuracy of such systems, it is proposed to use a simple technique for optimizing the supply mode of a single-mode laser diode, based on an analysis of the current dependence of its integral spectral parameter. It is shown that the optimal value of the pumping current appears when the radiation spectrum envelope line tends to match the normalized Gaussian curve within the width of the spectral line.

scholarly journals Polarization stability of the single-mode laser diodes radiation applied in radiation scattering study complexes

2021 ◽  
Vol 2127 (1) ◽  
pp. 012040
Author(s):  
V A Parshin ◽  
V V Bliznyuk ◽  
A V Dolgov
Keyword(s):  
Semiconductor Lasers ◽  
Laser Diodes ◽  
Single Mode ◽  
Spectral Energy ◽  
Radiation Polarization ◽  
Electronic Measuring ◽  
Mode Laser ◽  
Single Mode Laser ◽  
Polarization Characteristics ◽  
Output Laser

Abstract Key features of semiconductor lasers and its serially manufacturing technology modernization have greatly expanded of its using at applied studies at last 20 years. But there is set of factors restricting such lasers application in a number of optical-electronic measuring complexes. Particularly in particle image velocimetry (PIV) and laser Doppler velocimetry (LDV) complexes commonly the gas and solid-state lasers is used due to more stability of spectral, energy and polarization characteristics of radiation then semiconductor lasers have. However gradual introduction of the serially manufacturing laser diodes into such systems picking up the pace that certainly characterizes the progress of reaching the required stability of its output laser radiation parameters. In laser measurement systems where medium investigation carried out by analyzing of scattering radiation in it the probe radiation polarization is often important. So the using in such systems the laser diodes as sources of radiation need to be followed by stability monitoring of its polarization characteristics which may be violated both by the outer factors and by natural degradation of inner laser diode structure. This work is devoted to the issues of monitoring the radiation polarization characteristics of the serially manufacturing single-mode laser diodes.

Coherent summation of the radiation of a single-mode laser diode array

2012 ◽  
Vol 42 (6) ◽  
pp. 561-564 ◽  
Author(s):  
S I Derzhavin ◽  
O A Dyukel' ◽  
N M Lyndin
Keyword(s):  
Laser Diode ◽  
Single Mode ◽  
Diode Array ◽  
Laser Diode Array ◽  
Mode Laser ◽  
Single Mode Laser

940nm 400mW transverse single mode laser diode with RISA structure

2020 ◽  
Author(s):  
Jeong-Geun Kwak ◽  
Jong-Keun Park ◽  
Jeong-Hyun Park ◽  
Jaegyu Kim ◽  
An-Sik Choi ◽  
...  
Keyword(s):  
Laser Diode ◽  
Single Mode ◽  
Mode Laser ◽  
Single Mode Laser

Extremely low losses 14xx single mode laser diode leading to 550-mW output power module with 0-75°C case temperature and 10-W consumption

2012 ◽  
Author(s):  
J.-R. Burie ◽  
P. Garabedian ◽  
C. Starck ◽  
P. Pagnod-Rossiaux ◽  
M. Bettiati ◽  
...  
Keyword(s):  
Output Power ◽  
Laser Diode ◽  
Single Mode ◽  
Power Module ◽  
Mode Laser ◽  
Single Mode Laser

Lasing Characteristics of Single-Mode Laser Diode Arrays at Spectral Combining of Beams

2020 ◽  
Vol 28 (3) ◽  
pp. 208-212
Author(s):  
S. I. Derzhavin ◽  
V. P. Yakunin ◽  
R. V. Grishaev ◽  
V. N. Timoshkin ◽  
D. N. Mamonov ◽  
...  
Keyword(s):  
Laser Diode ◽  
Single Mode ◽  
Mode Laser ◽  
Single Mode Laser ◽  
Laser Diode Arrays
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