Power partition fluctuations in two-mode-degenerate distributed-feedback lasers

Kang Yih Liou, Thomas L Koch, Charles A. Burrus, V. Koren, T. L. Koch

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Measurements are presented along with a theoretical analysis of power partition fluctuations in a distributed feedback (DFB) laser operating in continuous wave with the two DFB degenerate modes as the only significant longitudinal modes. The power ratio of the two modes was varied from 1:1 to 2500:1 by electrical control using a two-electrode DFB laser. The laser was observed to exhibit 1) transient power dropouts and 2) two-mode relaxation oscillation. The dropout depths were less than 30% of the main-mode power in all cases, except when the laser was subjected to external optical feedback. The relaxation oscillations of the two-mode power are anticorrelated, which is different from the relaxation oscillation of the total output power due to photon-carrier interaction. The calculated result based on a Fokker-Planck analysis agrees with the experiment, except for the two-mode relaxation oscillation, which was not considered in the theory.

Original languageEnglish (US)
Pages (from-to)632-639
Number of pages8
JournalJournal of Lightwave Technology
Volume7
Issue number4
DOIs
StatePublished - Apr 1989
Externally publishedYes

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Distributed feedback lasers
distributed feedback lasers
Laser modes
partitions
Optical feedback
Lasers
Photons
dropouts
oscillations
Feedback
Electrodes
Experiments
continuous radiation
lasers
electrodes
output
photons

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Atomic and Molecular Physics, and Optics

Cite this

Power partition fluctuations in two-mode-degenerate distributed-feedback lasers. / Liou, Kang Yih; Koch, Thomas L; Burrus, Charles A.; Koren, V.; Koch, T. L.

In: Journal of Lightwave Technology, Vol. 7, No. 4, 04.1989, p. 632-639.

Research output: Contribution to journalArticle

Liou, Kang Yih ; Koch, Thomas L ; Burrus, Charles A. ; Koren, V. ; Koch, T. L. / Power partition fluctuations in two-mode-degenerate distributed-feedback lasers. In: Journal of Lightwave Technology. 1989 ; Vol. 7, No. 4. pp. 632-639.
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