All-Optical, High-Contrast Asymmetric Fabry-Perot Modulator

We have demonstrated all-optical modulation of a normally off asymmetric Fabry-Perot etalon with a nonlinear GaAs/AlGaAs multiple quantum well spacer. Large changes in reflectivity were observed giving an extremely high contrast ratio of 160:1 with less than 1 dB insertion loss. We have determined t...

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Bibliographic Details
Main Authors: Heffernan, J. F., Moloney, M. H., Hegarty, J.
Other Authors: TRINITY COLL DUBLIN (IRELAND)
Format: Text
Language:English
Published: 1992
Subjects:
Electrooptical and Optoelectronic Devices
*LIGHT MODULATORS
ABSORPTION
CONTRAST
INSERTION LOSS
MODULATION
RATIOS
REFLECTIVITY
REFRACTIVE INDEX
SPACERS
GALLIUM ARSENIDES
ALUMINUM GALLIUM ARSENIDES
HETEROJUNCTIONS
LOW LOSS
ICELAND
Component Reports
Fabry Perot etalons
Multiple quantum wells
Quantum wells
Iceland
Online Access:http://www.dtic.mil/docs/citations/ADP007414
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADP007414
Description
Summary:We have demonstrated all-optical modulation of a normally off asymmetric Fabry-Perot etalon with a nonlinear GaAs/AlGaAs multiple quantum well spacer. Large changes in reflectivity were observed giving an extremely high contrast ratio of 160:1 with less than 1 dB insertion loss. We have determined the nature of this modulation to be due to strong absorption and refractive index changes in the non-linear spacer. This article is from 'OSA Proceedings of the International Topical Meeting on Photonic Switching Held in Salt Lake City, Utah on 6-8 March 1992. Volume 8,' AD-A253 026, p227 thru p230.

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