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A QCSE tuned laser with uniform frequency modulation response for use in microwave photonics

Huang, X; Seeds, AJ; Roberts, JS; Knights, AP; (1998) A QCSE tuned laser with uniform frequency modulation response for use in microwave photonics. In: 1998 URSI SYMPOSIUM ON SIGNALS, SYSTEMS, AND ELECTR ONICS. (pp. 388 - 391). IEEE

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Abstract

Conventional semiconductor lasers tuned by the carrier-induced effect (CIE) suffer from intrinsically non-uniform optical frequency modulation (FM) response due to the associated thermal effect. Electric field effect tuned lasers involving no current injection, offer intrinsically uniform FM response. We report the first post-growth band-gap engineered, quantum-confined Stark effect (QCSE) tuned two-section ridge waveguide Inset; having the widest and most uniform frequency modulation bandwidth (30kHz to 6GHz +/-3dB) yet reported for field effect tuned lasers. The uniform FM response is independent of laser output power, and residual intensity modulation is less than 5% for 4.5GHz peak frequency deviation.

Type: Proceedings paper
Title: A QCSE tuned laser with uniform frequency modulation response for use in microwave photonics
Event: 4th URSI International Symposium on Signals, Systems, and Electronics
Location: PISA, ITALY
Dates: 1998-09-29 - 1998-10-02
ISBN: 0-7803-4900-8
Keywords: SEMICONDUCTOR-LASERS, QUANTUM, BANDWIDTH, ELECTROABSORPTION
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng
URI: http://discovery.ucl.ac.uk/id/eprint/130629
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