Experimental study of the characteristics of high-power laser diode radiation in the above-threshold mode for degradation analysis

Experimental study of the characteristics of high-power laser diode radiation in the above-threshold mode for degradation analysis

The angular dependence of the intensity and contrast of the radiation of laser diodes (LDs) with a CW power of 1.25 W has been investigated in the above-threshold mode. An original method for detecting fundamental lasing is used to analyze the mode structure of the LD radiation at low pump currents....

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Veröffentlicht in:Physics of wave phenomena 2017-04, Vol.25 (2), p.95-100
Hauptverfasser: Bliznyuk, V. V., Berezovskaya, N. V., Brit, M. A., Koval, O. I., Parshin, V. A., Rzhanov, A. G.
Format: Artikel
Sprache:eng
Schlagworte:
Acoustics
Degradation
Diodes
Lasing
Physics
Physics and Astronomy
Power measurement
Quantum Optics
Semiconductor Lasers
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Beschreibung
Zusammenfassung:The angular dependence of the intensity and contrast of the radiation of laser diodes (LDs) with a CW power of 1.25 W has been investigated in the above-threshold mode. An original method for detecting fundamental lasing is used to analyze the mode structure of the LD radiation at low pump currents. It is shown that this radiation contrast measurement makes it possible to detect the LD degradation in earlier stages than in power measurements.
ISSN:1541-308X
1934-807X
DOI:10.3103/S1541308X17020030