Optimization of waveguide coupling lenses using lens design software.

Persistent Link:
http://hdl.handle.net/10150/187385
Title:
Optimization of waveguide coupling lenses using lens design software.
Author:
Côté, Marie.
Issue Date:
1995
Publisher:
The University of Arizona.
Rights:
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Abstract:
The coupling of a semi-conductor laser into a waveguide or a fiber has been studied extensively. It has been discussed that butt coupling, which is the simplest theoretical solution, usually presents challenging tolerancing problems. The addition of optical elements between the laser and waveguide is interesting since it provides beam magnification and can loosen some tolerances. However, this raises the cost of the coupling system; that is why it is important to thoroughly optimize a coupling lens system. Since the numerical aperture of the beam emitted by a laser diode is usually in the range 0.4-0.5, the control of the coupling system's aberrations becomes critical. Some authors have already included aberrations in their study of the coupling efficiency of specific configurations. Wagner and Tomlinson have published a rigorous and complete treatment of the problem. The subject of this dissertation is to present a practical, engineering method of treating the coupling problem while employing widely available conventional lens design software. It will be shown that the coupling efficiency of a system can be related to an apodized and normalized point spread function that can easily be calculated with lens design software. This means that lens design software can predict the coupling efficiency of any system, but most importantly, it can also be used to optimize and tolerance the system. Development, study and validation of the proposed technique will be presented as well as some examples and applications.
Type:
text; Dissertation-Reproduction (electronic)
Degree Name:
Ph.D.
Degree Level:
doctoral
Degree Program:
Optical Sciences; Graduate College
Degree Grantor:
University of Arizona
Committee Chair:
Shannon, Robert R.

Full metadata record

DC FieldValue Language
dc.language.isoenen_US
dc.titleOptimization of waveguide coupling lenses using lens design software.en_US
dc.creatorCôté, Marie.en_US
dc.contributor.authorCôté, Marie.en_US
dc.date.issued1995en_US
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.description.abstractThe coupling of a semi-conductor laser into a waveguide or a fiber has been studied extensively. It has been discussed that butt coupling, which is the simplest theoretical solution, usually presents challenging tolerancing problems. The addition of optical elements between the laser and waveguide is interesting since it provides beam magnification and can loosen some tolerances. However, this raises the cost of the coupling system; that is why it is important to thoroughly optimize a coupling lens system. Since the numerical aperture of the beam emitted by a laser diode is usually in the range 0.4-0.5, the control of the coupling system's aberrations becomes critical. Some authors have already included aberrations in their study of the coupling efficiency of specific configurations. Wagner and Tomlinson have published a rigorous and complete treatment of the problem. The subject of this dissertation is to present a practical, engineering method of treating the coupling problem while employing widely available conventional lens design software. It will be shown that the coupling efficiency of a system can be related to an apodized and normalized point spread function that can easily be calculated with lens design software. This means that lens design software can predict the coupling efficiency of any system, but most importantly, it can also be used to optimize and tolerance the system. Development, study and validation of the proposed technique will be presented as well as some examples and applications.en_US
dc.typetexten_US
dc.typeDissertation-Reproduction (electronic)en_US
thesis.degree.namePh.D.en_US
thesis.degree.leveldoctoralen_US
thesis.degree.disciplineOptical Sciencesen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.chairShannon, Robert R.en_US
dc.contributor.committeememberHowe, Dennisen_US
dc.contributor.committeememberMilster, Thomasen_US
dc.identifier.proquest9620441en_US
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