Bandwidth enhancement of injection-locked 1.3 μm quantum-dot DFB laser

N. B. Terry, N. A. Naderi, M. Pochet, A. J. Moscho, L. F. Lester, V. Kovanis

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)

Abstract

Optical injection locking of a quantum-dot distributed-feedback laser at 1.3 μm is reported. Using an injection ratio of 5.3 dB, an optical detuning of -40 pm, and a slave laser biased at 20 mA, the modulation bandwidth of the injection-locked laser was 16.3 GHz. This is over four times higher than the modulation bandwidth of the free-running quantum-dot laser. At a slave laser bias of 5.0 mA, injection locking resulted in a resonance frequency of 21.9 GHz, over eleven times higher than the relaxation frequency of the free-running slave laser.

Original languageEnglish
Pages (from-to)904-905
Number of pages2
JournalElectronics Letters
Volume44
Issue number15
DOIs
Publication statusPublished - Jul 24 2008
Externally publishedYes

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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