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Study of millimeter wave phase shift in 40 GHz hybrid mode locked lasers

Research output: Contribution to journalArticle

Original languageEnglish
Pages (from-to)182 - 184
Number of pages3
JournalIEEE Microwave and Wireless Components Letters
Journal issue3
StatePublished - Mar 2009


An investigation into using hybrid mode-locked lasers to implement millimeter wave phase shift is presented. The phase shift is measured directly using a vector network analyzer enabling straightforward characterization of such systems. Both magnitude and phase of the modulation response are measured and a ldquoplateaurdquo is observed in the magnitude response which corresponds to the locking range of the system. Phase shifts of greater than 90deg are observed and such devices could have application in millimeter wave radio-over-fiber phased array antenna systems

Additional information

Publisher: IEEE Rose publication type: Journal article Terms of use: Copyright © 2009 IEEE. Reprinted from IEEE Microwave and Wireless Components Letters. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of the University of Bristol's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to By choosing to view this document, you agree to all provisions of the copyright laws protecting it.

Research areas

  • millimeter wave (mm-wave), mode locked laser (MLL), vector network analyzer

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