NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Collections About News Help Login
Back to Results
High pulse rate high resolution optical radar systemThe system is composed of an optical cavity with a laser and a mode locking means to build up an optical pulse. An optical switch is also provided within the cavity to convert the polarization of the optical pulse generated within the cavity. The optical switch comprises an electro-optical crystal driven by a time delayed driver circuit which is triggered by a coincident signal made from an optical pulse signal and a gating pulse signal. The converted optical pulse strikes a polarization sensitive prism and is deflected out of the cavity toward the pending target in the form of a pulse containing most of the optical energy generated by the laser in the pulse build-up period. After striking the target, the reflected energy is picked up by a transceiver with the total travel time of the pulse being recorded.
Document ID
19730017392
Acquisition Source
Legacy CDMS
Document Type
Other - Patent
Authors
Goss, W. C. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Burns, R. H. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Chi, K. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
September 2, 2013
Publication Date
June 5, 1973
Subject Category
Communications
Accession Number
73N26119
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
NASA-CASE-NPO-11426|US-PATENT-3,737,231
Patent Application
US-PATENT-APPL-SN-89210

Related Records

IDRelationTitleN71-33107Superseded By
No Preview Available