Packaged semiconductor laser optical phase locked loop for photonic generation, processing and transmission of microwave signals

L.N. Langley, M.D. Elkin, C. Edege, M.J. Wale, Ulrik Bo Gliese, X. Huang, A.J. Seeds

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

In this paper, we present the first fully packaged semiconductor laser optical phase-locked loop (OPLL) microwave photonic transmitter. The transmitter is based on semiconductor lasers that are directly phase locked without the use of any other phase noise-reduction mechanisms. In this transmitter, the lasers have a free-running summed linewidth of 6 MHz and the OPLL has a feedback bandwidth of 70 MHz, A state-of-the-art performance is obtained, with a total phase-error variance of 0.05 rad(2) (1-GHz bandwidth) and a carrier phase-error variance of 7x10(-4) rad(2) in a 15-MHz bandwidth. Carriers are generated in the range of 7-14 GHz. The OPLL transmitter has been fully packaged for practical use in field trials. This is the first time this type of transmitter has been fabricated in a packaged state which is a significant advance on the route to practical application.
Original languageEnglish
JournalI E E E Transactions on Microwave Theory and Techniques
Volume47
Issue number7
Pages (from-to)1257-1264
ISSN0018-9480
DOIs
Publication statusPublished - 1999

Fingerprint Dive into the research topics of 'Packaged semiconductor laser optical phase locked loop for photonic generation, processing and transmission of microwave signals'. Together they form a unique fingerprint.

Cite this