Enhanced stability of MFA-MOPA semiconductor lasers using a nonlinear, trumpet-shaped flare

P. M W Skovgaard; J. G. McInerney; J. V. Moloney; R. A. Indik; Cun-Zheng Ning

doi:10.1109/68.618484

Enhanced stability of MFA-MOPA semiconductor lasers using a nonlinear, trumpet-shaped flare

P. M W Skovgaard, J. G. McInerney, J. V. Moloney, R. A. Indik, Cun-Zheng Ning

Research output: Contribution to journal › Article › peer-review

22 Scopus citations

Abstract

Monolithically integrated flared amplifier master oscillator power amplifier (MFA-MOPA) lasers are studied using a high-resolution computational model that resolves time as well as longitudinal and transverse space dependences and includes Lorentzian gain and dispersion dynamics. By altering the linear flare of the power amplifier into a nonlinear, trumpet-shaped flare to overlap the gain region to the expanding field, the instability threshold of the MOPA is increased by ∼2 for single-longitudinal, single-transverse mode operation and ∼3 for single-transverse mode operation. This enables the MOPA to maintain a stable, near-diffraction limited output beam for higher currents before the onset of transverse instabilities. Thus the trumpet-flared MOPA emits an output beam of significantly higher power and brightness. This increased stability is due to a large reduction in feedback from the output facet of the trumpet shaped MFA-MOPA.

Original language	English (US)
Pages (from-to)	1220-1222
Number of pages	3
Journal	IEEE Photonics Technology Letters
Volume	9
Issue number	9
DOIs	https://doi.org/10.1109/68.618484
State	Published - Sep 1997

Keywords

Distributed Bragg reflector lasers
Nonlinear wave propagation
Optical propagation in nonlinear media
Semiconductor lasers
Semiconductor optical amplifiers

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Electrical and Electronic Engineering

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10.1109/68.618484

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title = "Enhanced stability of MFA-MOPA semiconductor lasers using a nonlinear, trumpet-shaped flare",

abstract = "Monolithically integrated flared amplifier master oscillator power amplifier (MFA-MOPA) lasers are studied using a high-resolution computational model that resolves time as well as longitudinal and transverse space dependences and includes Lorentzian gain and dispersion dynamics. By altering the linear flare of the power amplifier into a nonlinear, trumpet-shaped flare to overlap the gain region to the expanding field, the instability threshold of the MOPA is increased by ∼2 for single-longitudinal, single-transverse mode operation and ∼3 for single-transverse mode operation. This enables the MOPA to maintain a stable, near-diffraction limited output beam for higher currents before the onset of transverse instabilities. Thus the trumpet-flared MOPA emits an output beam of significantly higher power and brightness. This increased stability is due to a large reduction in feedback from the output facet of the trumpet shaped MFA-MOPA.",

keywords = "Distributed Bragg reflector lasers, Nonlinear wave propagation, Optical propagation in nonlinear media, Semiconductor lasers, Semiconductor optical amplifiers",

author = "Skovgaard, {P. M W} and McInerney, {J. G.} and Moloney, {J. V.} and Indik, {R. A.} and Cun-Zheng Ning",

note = "Funding Information: Manuscript received March 3, 1997; revised April 30, 1997. This work is supported by the U.S. Air Force Office of Scientific Research under Contract AFOSR F 49 620-94-1-0144 DEF, Forbairt (the Irish Science and Technology Agency) and by the Commission of the European Union. P. M. W. Skovgaard is with the Physics Department, National University of Ireland, University College, Cork, Ireland. J. G. McInerney is with the Physics Department, National University of Ireland, University College, Cork, Ireland. He also with the Optical Sciences Center, University of Arizona, Tucson, AZ 85721 USA. J. V. Moloney, R. A. Indik, and C. Z. Ning are with the Arizona Center for Mathematical Sciences, University of Arizona, Tucson, AZ 85721 USA. Publisher Item Identifier S 1041-1135(97)06337-4.",

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AU - Skovgaard, P. M W

AU - McInerney, J. G.

AU - Moloney, J. V.

AU - Indik, R. A.

AU - Ning, Cun-Zheng

N1 - Funding Information: Manuscript received March 3, 1997; revised April 30, 1997. This work is supported by the U.S. Air Force Office of Scientific Research under Contract AFOSR F 49 620-94-1-0144 DEF, Forbairt (the Irish Science and Technology Agency) and by the Commission of the European Union. P. M. W. Skovgaard is with the Physics Department, National University of Ireland, University College, Cork, Ireland. J. G. McInerney is with the Physics Department, National University of Ireland, University College, Cork, Ireland. He also with the Optical Sciences Center, University of Arizona, Tucson, AZ 85721 USA. J. V. Moloney, R. A. Indik, and C. Z. Ning are with the Arizona Center for Mathematical Sciences, University of Arizona, Tucson, AZ 85721 USA. Publisher Item Identifier S 1041-1135(97)06337-4.

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N2 - Monolithically integrated flared amplifier master oscillator power amplifier (MFA-MOPA) lasers are studied using a high-resolution computational model that resolves time as well as longitudinal and transverse space dependences and includes Lorentzian gain and dispersion dynamics. By altering the linear flare of the power amplifier into a nonlinear, trumpet-shaped flare to overlap the gain region to the expanding field, the instability threshold of the MOPA is increased by ∼2 for single-longitudinal, single-transverse mode operation and ∼3 for single-transverse mode operation. This enables the MOPA to maintain a stable, near-diffraction limited output beam for higher currents before the onset of transverse instabilities. Thus the trumpet-flared MOPA emits an output beam of significantly higher power and brightness. This increased stability is due to a large reduction in feedback from the output facet of the trumpet shaped MFA-MOPA.

AB - Monolithically integrated flared amplifier master oscillator power amplifier (MFA-MOPA) lasers are studied using a high-resolution computational model that resolves time as well as longitudinal and transverse space dependences and includes Lorentzian gain and dispersion dynamics. By altering the linear flare of the power amplifier into a nonlinear, trumpet-shaped flare to overlap the gain region to the expanding field, the instability threshold of the MOPA is increased by ∼2 for single-longitudinal, single-transverse mode operation and ∼3 for single-transverse mode operation. This enables the MOPA to maintain a stable, near-diffraction limited output beam for higher currents before the onset of transverse instabilities. Thus the trumpet-flared MOPA emits an output beam of significantly higher power and brightness. This increased stability is due to a large reduction in feedback from the output facet of the trumpet shaped MFA-MOPA.

KW - Distributed Bragg reflector lasers

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KW - Semiconductor lasers

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Enhanced stability of MFA-MOPA semiconductor lasers using a nonlinear, trumpet-shaped flare

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