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Title: Engineered current-density profile diode laser

Abstract

The present technology can be used to control the current injection profile in the longitudinal direction of a high-power diode laser in order to optimize current densities as a function of position in the cavity to promote higher reliable output power and increase the electrical to optical conversion efficiency of the device beyond the level which can be achieved without application of this technique. This approach can be utilized, e.g., in the fabrication of semiconductor laser chips to improve the output power and wall plug efficiency for applications requiring improved performance operation.

Inventors:
; ;
Issue Date:
Research Org.:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1998413
Patent Number(s):
11658460
Application Number:
17/041,256
Assignee:
Lawrence Livermore National Security, LLC (Livermore, CA)
DOE Contract Number:  
AC52-07NA27344
Resource Type:
Patent
Resource Relation:
Patent File Date: 03/26/2019
Country of Publication:
United States
Language:
English

Citation Formats

Leisher, Paul O., Deri, Robert J., and Patra, Susant K. Engineered current-density profile diode laser. United States: N. p., 2023. Web.
Leisher, Paul O., Deri, Robert J., & Patra, Susant K. Engineered current-density profile diode laser. United States.
Leisher, Paul O., Deri, Robert J., and Patra, Susant K. Tue . "Engineered current-density profile diode laser". United States. https://www.osti.gov/servlets/purl/1998413.
@article{osti_1998413,
title = {Engineered current-density profile diode laser},
author = {Leisher, Paul O. and Deri, Robert J. and Patra, Susant K.},
abstractNote = {The present technology can be used to control the current injection profile in the longitudinal direction of a high-power diode laser in order to optimize current densities as a function of position in the cavity to promote higher reliable output power and increase the electrical to optical conversion efficiency of the device beyond the level which can be achieved without application of this technique. This approach can be utilized, e.g., in the fabrication of semiconductor laser chips to improve the output power and wall plug efficiency for applications requiring improved performance operation.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2023},
month = {5}
}

Works referenced in this record:

Light emitting device
patent, May 2017


Semiconductor Optical Amplifier Having a Non-Uniform Injection Current Density
patent-application, November 2006


LED with Internally Confined Current Injection Area
patent-application, November 2016


Longitudinal carrier density measurement of high power broad area laser diodes
journal, January 2002


Light-Emitting Devices with Through-Substrate Via Connections
patent-application, August 2011


Power Light Emitting Diode and Method with Uniform Current Density Operation
patent-application, July 2016


Experimental verification of longitudinal spatial hole burning in high-power diode lasers
conference, June 2014


Gaussian patterned contacts for improved beam stability of 1.55-μm tapered lasers
journal, March 2000


Theoretical and experimental investigations of the limits to the maximum output power of laser diodes
journal, August 2010


Method for Mode Control in Multimode Semiconductor Waveguide Lasers
patent-application, October 2009