Surface-emitting laser and optical apparatus formed by using...

Details Surface-emitting laser and optical apparatus formed by using... Surface-emitting laser and optical apparatus formed by using...

2008-11-21

2010-11-09

Harvey, Minsun (Department: 2828)

Coherent light generators

Particular resonant cavity

Specified cavity component

C372S050110, C372S050124, C372S092000, C372S096000, C359S213100, C359S359000

Reexamination Certificate

active

07830944

ABSTRACT:
A surface-emitting laser has an active layer between a first distributed Bragg reflector and a second distributed Bragg reflector. The first distributed Bragg reflector is formed so as to have a resonant mode and a first longitudinal mode different from the resonant mode included in the reflectivity stop band and a second longitudinal mode different from the resonant mode and the first longitudinal mode excluded from the reflectivity stop band. Oscillation is suppressed in the first longitudinal mode and in the second longitudinal mode. As a result, the surface-emitting laser can oscillate in a single longitudinal mode, suppressing longitudinal mode hopping.

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patent: 2008/0304532 (2008-12-01), Uchida
Unold, H.J., et al., “Improving Single-Mode VCSEL Performeance by Introducing a Long Monolithic Cavity”, IEEE Photonics Technology Letters, vol. 12, No. 8, Aug. 2000, pp. 939-941.

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