Optimization of sideband modulation in optical-heterodyne-downmixed electro-optic sensing
Applied Optics, Vol. 48, Issue 8, pp. 1583-1590 (2009)
http://dx.doi.org/10.1364/AO.48.001583
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Abstract
Enhancements of the modulation depth in an electro-optic sensing application, through optimization of the modulation sidebands in both an electro-optic modulator and a microcavity electro-optic probe, have been investigated. The principles and methods of optimizing the operational bias points for the devices are described from the point of view of both an electro-optic modulator and probe, and their different optimum characteristics for signal-modulation depth, due to their huge scale gap, are presented. We use an optical-heterodyne receiver employing a fast modulator along with the electro-optic sensing technique to achieve high-frequency microwave electric field mapping. The practical limitations to sensitivity enhancement, solutions for compensating distortion, and combined optimization conditions for both electro-optic modulation and sensing are presented by exploring the evolution of field-mapping distributions.
© 2009 Optical Society of America
OCIS Codes
(230.2090) Optical devices : Electro-optical devices
(230.4110) Optical devices : Modulators
(350.4010) Other areas of optics : Microwaves
(280.4788) Remote sensing and sensors : Optical sensing and sensors
ToC Category:
Remote Sensing and Sensors
History
Original Manuscript: November 24, 2008
Revised Manuscript: February 6, 2009
Manuscript Accepted: February 9, 2009
Published: March 6, 2009
Citation
Dong-Joon Lee and John F. Whitaker, "Optimization of sideband modulation in optical-heterodyne-downmixed electro-optic sensing," Appl. Opt. 48, 1583-1590 (2009)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-48-8-1583
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