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Title: Design and characterization of optically pumped vertical cavity surface emitting lasers. Master's thesis

Abstract

Vertical Cavity Surface Emitting Lasers (VCSELs) are a form of semiconductor laser which have their cavity oriented orthogonally to the plane of the wafer. The orientation necessitates short cavities, highly reflective mirrors and a relatively high gain/loss ratio. Even so, the resultant superior exit beam characteristics and the tight packing density of the finished lasers provide strong motivation for pursuing the growth of these structures. This thesis details the design of an optically pumped InGaAs multiple quantum well periodic gain structure VCSEL with a 950 nm lasing wavelength. These growths were to be a first attempt at VCSEL construction, so part of this study included verification of the quality of the parts of the finished design. These measurements required the construction of a laboratory configuration to optically pump VCSELs and characterize them by spectral reflectivity, output beam polarization, mode, lasing wavelength, and optimal pump wavelength. Analysis of the characteristics for several VCSELs obtained from the University of Arizona, and the back mirror grown locally, illustrate tile ability to use measured data and theoretical spectral reflectivity calculations to determine the quality of the growths.... Semiconductor lasers, Gallium arsenide lasers, Semiconductor devices, Surface emitting lasers, Distributed Bragg reflector stack, Vertical cavity structure,more » InGaAs quantum wells.« less

Authors:
Publication Date:
Research Org.:
Air Force Inst. of Tech., Wright-Patterson AFB, OH (United States). School of Engineering
OSTI Identifier:
6714770
Report Number(s):
AD-A-258815/0/XAB; AFIT/GE/ENP-92D-01
Resource Type:
Technical Report
Resource Relation:
Other Information: Master's thesis
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; GALLIUM ARSENIDES; ELECTRICAL PROPERTIES; INDIUM ARSENIDES; SEMICONDUCTOR LASERS; DESIGN; INTERMETALLIC COMPOUNDS; NEAR INFRARED RADIATION; POLARIZATION; REFLECTIVITY; SEMICONDUCTOR DEVICES; ALLOYS; ARSENIC COMPOUNDS; ARSENIDES; ELECTROMAGNETIC RADIATION; GALLIUM COMPOUNDS; INDIUM COMPOUNDS; INFRARED RADIATION; LASERS; OPTICAL PROPERTIES; PHYSICAL PROPERTIES; PNICTIDES; RADIATIONS; SOLID STATE LASERS; SURFACE PROPERTIES; 426002* - Engineering- Lasers & Masers- (1990-)

Citation Formats

Bagnell, R J. Design and characterization of optically pumped vertical cavity surface emitting lasers. Master's thesis. United States: N. p., 1992. Web.
Bagnell, R J. Design and characterization of optically pumped vertical cavity surface emitting lasers. Master's thesis. United States.
Bagnell, R J. Tue . "Design and characterization of optically pumped vertical cavity surface emitting lasers. Master's thesis". United States.
@article{osti_6714770,
title = {Design and characterization of optically pumped vertical cavity surface emitting lasers. Master's thesis},
author = {Bagnell, R J},
abstractNote = {Vertical Cavity Surface Emitting Lasers (VCSELs) are a form of semiconductor laser which have their cavity oriented orthogonally to the plane of the wafer. The orientation necessitates short cavities, highly reflective mirrors and a relatively high gain/loss ratio. Even so, the resultant superior exit beam characteristics and the tight packing density of the finished lasers provide strong motivation for pursuing the growth of these structures. This thesis details the design of an optically pumped InGaAs multiple quantum well periodic gain structure VCSEL with a 950 nm lasing wavelength. These growths were to be a first attempt at VCSEL construction, so part of this study included verification of the quality of the parts of the finished design. These measurements required the construction of a laboratory configuration to optically pump VCSELs and characterize them by spectral reflectivity, output beam polarization, mode, lasing wavelength, and optimal pump wavelength. Analysis of the characteristics for several VCSELs obtained from the University of Arizona, and the back mirror grown locally, illustrate tile ability to use measured data and theoretical spectral reflectivity calculations to determine the quality of the growths.... Semiconductor lasers, Gallium arsenide lasers, Semiconductor devices, Surface emitting lasers, Distributed Bragg reflector stack, Vertical cavity structure, InGaAs quantum wells.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1992},
month = {12}
}

Technical Report:
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