scholarly journals Повышение мощности и улучшение направленности излучения широкоапертурных гетеролазеров при оптимизации размеров брэгговской решетки

2021 ◽  
Vol 55 (8) ◽  
pp. 659
Author(s):  
Н.С. Гинзбург ◽  
А.С. Сергеев ◽  
Е.Р. Кочаровская ◽  
А.М. Малкин ◽  
В.Ю. Заславский
Keyword(s):  
Physical Interpretation ◽  
Radiation Power ◽  
Single Mode ◽  
Output Radiation ◽  
Oscillation Regime ◽  
Bragg Structure ◽  
Bragg Structures ◽  
Mode Oscillation ◽  
Selection Of ◽  
Output Radiation Power

We investigate the dynamics of heterolasers with finite-length planar Bragg structures. Based on the analysis of the dispersion equation describing the eigenwaves propagation in a Bragg structure, we present a physical interpretation of selection of modes with frequencies higher than the stopband. We demonstrate the improvement of stability by using the Bragg structures with transverse dimensions lower than the width of the active area of DFB heterolasers. As a result, the single-mode oscillation regime is sustained over a wider range of pump levels, and, correspondingly, of the output radiation power.

Influence of a radial inhomogeneity of the active medium on the output radiation power from a cw CO2 laser with fast axial flow

1996 ◽  
Author(s):  
Michail G. Galushkin ◽  
Vladimir S. Golubev ◽  
V. V. Dembovetsky ◽  
Yuri N. Zavalov ◽  
Valentina Y. Zavalova
Keyword(s):  
Active Medium ◽  
Co2 Laser ◽  
Radiation Power ◽  
Axial Flow ◽  
Output Radiation ◽  
Radial Inhomogeneity ◽  
Cw Co2 Laser ◽  
Output Radiation Power

Influence of a radial inhomogeneity of the active medium on the output radiation power from a cw CO2laser with fast axial flow

1996 ◽  
Vol 26 (8) ◽  
pp. 676-679 ◽  
Author(s):  
M G Galushkin ◽  
V S Golubev ◽  
V V Dembovetskii ◽  
Yu N Zavalov ◽  
V E Zavalova
Keyword(s):  
Active Medium ◽  
Radiation Power ◽  
Axial Flow ◽  
Output Radiation ◽  
Radial Inhomogeneity ◽  
Output Radiation Power

Hysteresis of the output radiation power of cw AlGaAs heterolasers

1978 ◽  
Vol 8 (11) ◽  
pp. 1408-1409 ◽  
Author(s):  
Alexandr P Bogatov ◽  
P G Eliseev ◽  
O G Okhotnikov ◽  
G T Pak
Keyword(s):  
Radiation Power ◽  
Output Radiation ◽  
Output Radiation Power

Controlling the output radiation power of CO2 lasers by means of deformable mirrors

2004 ◽  
Vol 71 (2) ◽  
pp. 65 ◽  
Author(s):  
B. S. Vinevich ◽  
L. N. Evdokimovich ◽  
S. N. Smirnov ◽  
A. G. Safronov
Keyword(s):  
Radiation Power ◽  
Deformable Mirrors ◽  
Co2 Lasers ◽  
Output Radiation ◽  
Output Radiation Power

Conditions for the excitation of a wide-aperture XeCl laser with an average output radiation power of 1 kW

1995 ◽  
Vol 25 (5) ◽  
pp. 408-410 ◽  
Author(s):  
V M Borisov ◽  
A A Dmitriev ◽  
A V Prokof'ev ◽  
O B Khristoforov
Keyword(s):  
Radiation Power ◽  
Xecl Laser ◽  
Output Radiation ◽  
Average Output ◽  
Wide Aperture ◽  
Output Radiation Power

Possibilities of Increasing the Output Radiation Power of High-Current Relativistic Gyrotrons Using Operating Modes of the TM Type

2020 ◽  
Vol 84 (1) ◽  
pp. 66-69
Author(s):  
A. N. Leontyev ◽  
E. B. Abubakirov ◽  
V. I. Belousov ◽  
Yu. M. Guznov ◽  
R. M. Rozental ◽  
...  
Keyword(s):  
Radiation Power ◽  
High Current ◽  
Output Radiation ◽  
Operating Modes ◽  
Output Radiation Power

scholarly journals INVESTIGATING THE EFFECT OF TAPER LENGTH ON SENSITIVITY OF THE TAPERED-FIBER BASED TEMPERATURE SENSOR

2016 ◽  
Vol 78 (3) ◽  
Author(s):  
Baktiar Musa ◽  
Yasmin Mustapha Kamil ◽  
Muhammad Hafiz Abu Bakar ◽  
Ahmad Shukri Mohd Noor ◽  
Alyani Ismail ◽  
...  
Keyword(s):  
Temperature Sensor ◽  
Optimum Parameter ◽  
Low Cost ◽  
High Sensitivity ◽  
Single Mode ◽  
Careful Selection ◽  
Tapered Fiber ◽  
Tapered Optical Fiber ◽  
Good Repeatability ◽  
Selection Of

A temperature sensor using single-mode tapered fiber is presented. To better understand the behaviour of a tapered optical fiber, transmission experiments with different taper profiles, specifically waist length were performed. The effects of taper profiles on the sensitivity of the sensor were also investigated. It is demonstrated that careful selection of the taper profile can increase the sensitivity of the sensor. In our experiment, a good temperature sensing result was achieved using the optimum parameter. The best sensitivity achieved was 45.5 pm/°C that measured the range of temperature from 30°C to 120°C. The fabricated sensors are easy to fabricate and relatively low cost. Our results indicate that the tapered fiber based temperature sensor has high sensitivity and good repeatability.  

scholarly journals Selection of lasing direction in single mode semiconductor square ring cavities

2016 ◽  
Vol 119 (5) ◽  
pp. 053101 ◽  
Author(s):  
Jin-Woong Lee ◽  
Kyoung-Youm Kim ◽  
Hee-Jong Moon ◽  
Kyung-Sook Hyun
Keyword(s):  
Single Mode ◽  
Selection Of
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