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Coherent power combination of two Master-oscillator-power-amplifier (MOPA) semiconductor lasers using optical phase lock loops

Liang, Wei and Satyan, Naresh and Yariv, Amnon and Kewitsch, Anthony and Rakuljic, George and Aflatouni, Firooz and Hashemi, Hossein and Ungar, Jeffrey (2007) Coherent power combination of two Master-oscillator-power-amplifier (MOPA) semiconductor lasers using optical phase lock loops. Optics Express, 15 (6). pp. 3201-3205. ISSN 1094-4087. https://resolver.caltech.edu/CaltechAUTHORS:LIAoe07

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Abstract

Using heterodyne Optical Phase-Locked Loops (OPLLs), two 1W high power 1550 nm master-oscillator-power-amplifier (MOPA) semiconductor lasers operating as current controlled oscillators are phase-locked to a 1 mW reference laser. The signals of the two MOPAs are then coherently combined and their mutual coherence is studied. In each OPLL, the acquisition range is increased to +/-1.1GHz with the help of an aided- acquisition circuit. Control of the phase of a single slave MOPA is demonstrated using a RF phase shifter. The differential phase error between two MOPAs locked to the common reference laser is typically 22 degrees.


Item Type:Article
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http://www.opticsinfobase.org/abstract.cfm?URI=oe-15-6-3201OtherUNSPECIFIED
Additional Information:© 2007 Optical Society of America. Received 10 January 2007; revised 4 March 2007; accepted 11 March 2007. The authors wish to acknowledge the support of DARPA’s MTO office (J. Mangano, M. Stickley) and T. Salvi of Kirtland Air Force Base.
Subject Keywords:Diode laser arrays; Coherence; Distributed feedback lasers
Issue or Number:6
Record Number:CaltechAUTHORS:LIAoe07
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:LIAoe07
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:7649
Collection:CaltechAUTHORS
Deposited By: Archive Administrator
Deposited On:19 Mar 2007
Last Modified:02 Oct 2019 23:44

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