• Login
    View Item 
    •   Home
    • UA Graduate and Undergraduate Research
    • UA Theses and Dissertations
    • Master's Theses
    • View Item
    •   Home
    • UA Graduate and Undergraduate Research
    • UA Theses and Dissertations
    • Master's Theses
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

    All of UA Campus RepositoryCommunitiesTitleAuthorsIssue DateSubmit DateSubjectsPublisherJournalThis CollectionTitleAuthorsIssue DateSubmit DateSubjectsPublisherJournal

    My Account

    LoginRegister

    About

    AboutUA Faculty PublicationsUA DissertationsUA Master's ThesesUA Honors ThesesUA PressUA YearbooksUA CatalogsUA Libraries

    Statistics

    Most Popular ItemsStatistics by CountryMost Popular Authors

    Lateral Divergence in High Power Laser Diodes: Method of Analysis for Assessing Contributing Factors

    • CSV
    • RefMan
    • EndNote
    • BibTex
    • RefWorks
    Thumbnail
    Name:
    azu_etd_17425_sip1_m.pdf
    Size:
    3.637Mb
    Format:
    PDF
    Download
    Author
    Vail, Nicholas
    Issue Date
    2019
    Keywords
    high power semiconductor laser
    Slow axis divergence
    thermal lensing
    Advisor
    Fallahi, Mahmoud
    
    Metadata
    Show full item record
    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, presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
    Abstract
    Lateral far field blooming or slow axis divergence is a common problem of high-power diode lasers and there are many different factors that contribute. Some of the major factors include temperature, carrier-induced effects, high order modes, mode types, and optical confinement. In this study, these properties were characterized and quantified in order to build a model to assess and simulate lateral divergence. A novel device called a spectral mapper was built to separate out lateral and longitudinal modes and their changes as current is varied. The collected and calculated data was input into LaserMOD, where simulations were run to determine the extent to which core width, mode number and refractive index changes modify the divergence of the device. While the modelling software was unable to support large numbers of modes due to weak confinement and also underestimated refractive index change in multimodal devices, the model and simulations were still able to quantify that more modes led to more lateral divergence. These tests and models can be used to improve coupling performance and hopefully provide insight into how high-power laser diodes can be further integrated with fiber lasers.
    Type
    text
    Electronic Thesis
    Degree Name
    M.S.
    Degree Level
    masters
    Degree Program
    Graduate College
    Optical Sciences
    Degree Grantor
    University of Arizona
    Collections
    Master's Theses

    entitlement

     
    The University of Arizona Libraries | 1510 E. University Blvd. | Tucson, AZ 85721-0055
    Tel 520-621-6442 | repository@u.library.arizona.edu
    DSpace software copyright © 2002-2017  DuraSpace
    Quick Guide | Contact Us | Send Feedback
    Open Repository is a service operated by 
    Atmire NV
     

    Export search results

    The export option will allow you to export the current search results of the entered query to a file. Different formats are available for download. To export the items, click on the button corresponding with the preferred download format.

    By default, clicking on the export buttons will result in a download of the allowed maximum amount of items.

    To select a subset of the search results, click "Selective Export" button and make a selection of the items you want to export. The amount of items that can be exported at once is similarly restricted as the full export.

    After making a selection, click one of the export format buttons. The amount of items that will be exported is indicated in the bubble next to export format.