NDLI: Adaptive laser system for active remote object tracking

Content Provider	IEEE Xplore Digital Library
Author	Markov, V.B. Khizhnyak, A.
Copyright Year	2002
Description	Author affiliation: MetroLaser Inc, Irvine, CA, USA (Markov, V.B.)
Abstract	A number of approaches have been suggested in order to develop a passive laser system that can lock on and track a remote object, including satellites. Active laser-based systems have an advantage over passive systems because they can establish communication channels, measure target velocity and spatial coordinates, and/or deliver high optical power levels. We report here on the first experimental realization of a coupled laser system that employs a phase conjugate mirror (PCM) and is capable of adaptively tracking a moving output coupler. Active systems have been demonstrated in the laboratory using phase conjugate mirrors; however, they have generally been limited to locking on to static or very slow moving objects. For tracking remote, high velocity targets, several problems exist including: low returned power, high Doppler frequency shift, and large temporal delays. In this work, we show that laser resonators coupled with a phase-conjugate mirror in a Michelson-type arrangement can be used to overcome some of these limitations and track a remote moving object.
Sponsorship	IEEE Aerosp. & Electron. Syst. Soc
Starting Page	3
Ending Page	3
File Size	852397
Page Count	1
File Format	PDF
ISBN	078037231X
DOI	10.1109/AERO.2002.1035281
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-03-09
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Adaptive systems Target tracking Optical coupling Mirrors Optical resonators Satellites Power lasers Communication channels Coordinate measuring machines Power measurement
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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