Narrow spectral width light emitting devices

Details Narrow spectral width light emitting devices Narrow spectral width light emitting devices

2005-04-12

2005-04-12

Leung, Quyen (Department: 2828)

Coherent light generators

Particular active media

Semiconductor

C372S049010

Reexamination Certificate

active

06879610

ABSTRACT:
A light emitting device outputs amplified spontaneous emissions confined to a single spatial mode, where the spectral emission is shaped. In one aspect, an absorption layer is provided having a cutoff wavelength shorter than the quantum wavelength of the light emitting device. In another aspect, an interference filter at the front facet provides spectral shaping.

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Gerard A. Alphonse, “Design of High-Power Superluminescent Diodes With Low Spectral Modulation,” SPIE vol. 4648, pp. 125-137, Jan. 2002.

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