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Telecommunication - Resonant Optical Detection (1995)


Frank J. Effenberger, Member SPIE
Abhay M. Joshi
Discovery Semiconductors, Inc.
119 Silvia Street
Ewing, New Jersey, 08628 USA

ABSTRACT

Monochromatic optical detection is often desired. One technique to accomplish this is to place the detector within an optical resonator. The authors consider the theoretical description of resonant optical detection using an intrinsic semiconductor detector layer placed within a monolithic vertical cavity. The effects of wavelength-dependent index and absorption are included in the analysis. It is found that, unlike passive Fabry-Perot filters, the resonant detector can have a single resonant peak and thus strong suppression of out-of-brand light.

Subject terms: optical detector; resonance; semiconductor; Fabry-Perot etalon; optical filter; monolithic integration.

*Published in Optical Engineering 34(4), pp.1094-1097, 1995.

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