NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Wide-band analog frequency modulation of optic signals using indirect techniquesThe wideband frequency modulation (FM) of an optical carrier by a radio frequency (RF) or microwave signal can be accomplished independent of laser type when indirect modulation is employed. Indirect modulators exploit the integral relation of phase to frequency so that phase modulators can be used to impress frequency modulation on an optical carrier. The use of integrated optics phase modulators, which are highly linear, enables the generation of optical wideband FM signals with very low intermodulation distortion. This modulator can be used as part of an optical wideband FM link for RF and microwave signals. Experimental results from the test of an indirect frequency modulator for an optical carrier are discussed.
Document ID
19920059835
Document Type
Conference Paper
Authors
Fitzmartin, D. J.
(NASA Lyndon B. Johnson Space Center Houston, TX, United States)
Balboni, E. J.
(NASA Lyndon B. Johnson Space Center Houston, TX, United States)
Gels, R. G.
(Charles Stark Draper Laboratory, Inc. Cambridge, MA, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1991
Subject Category
Optics
Distribution Limits
Public
Copyright
Other
No Preview Available