Near- and far-field observations of transient behavior in pulsed graded barrier quantum well lasers

The pulsed behavior of both gain-guided and index-guided graded barrier quantum well lasers has been studied with near- and far-field lateral mode measurements at different pulse widths. Above threshold, gain-guided devices show a transition to predominantly index-guided operation as a result of the...

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Veröffentlicht in:	J. Appl. Phys.; (United States) 1986-10, Vol.60 (7), p.2613-2615
Hauptverfasser:	MAWST, L. J, GIVENS, M. E, ZMUDZINSKI, C. A, EMANUEL, M. A, COLEMAN, J. J
Format:	Artikel
Sprache:	eng
Schlagworte:	420300 - Engineering- Lasers- (-1989) Applied sciences ENERGY ENGINEERING Exact sciences and technology Fundamental areas of phenomenology (including applications) LASERS OPERATION Optics Other techniques and industries Physics PULSE TECHNIQUES PULSES SEMICONDUCTOR DEVICES SEMICONDUCTOR LASERS Semiconductor lasers laser diodes THRESHOLD ENERGY WAVEGUIDES
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Zusammenfassung:	The pulsed behavior of both gain-guided and index-guided graded barrier quantum well lasers has been studied with near- and far-field lateral mode measurements at different pulse widths. Above threshold, gain-guided devices show a transition to predominantly index-guided operation as a result of thermally induced waveguiding. Similar devices with built-in real index guiding exhibit low threshold, stable mode operation, with no observable variations with pulse width.
ISSN:	0021-8979 1089-7550
DOI:	10.1063/1.337130