The side-mode-suppression ratio of a tunable DBR laser

S. L. Woodward, I. M I Habbab, Thomas L Koch, U. Koren

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

The authors investigate, both experimentally and theoretically, how the side-mode-suppression ratio (SMSR) of a multisection multiple-quantum-well distributed-Bragg-reflector (MQW-DBR) laser varies with tuning current. It is found that as the tuning current is adjusted the wavelength and the SMSR vary, with the peak SMSR = 43 dB. The output power also varies with tuning current, and one can find when the laser is near a mode hop by examination of the light versus tuning current curve. This implies that the tuning current can be adjusted so that the laser frequency is near the center of the Bragg band without measuring the SMSR. The measurements are in good agreement with theory.

Original languageEnglish (US)
Pages (from-to)854-856
Number of pages3
JournalIEEE Photonics Technology Letters
Volume2
Issue number12
DOIs
StatePublished - Dec 1990
Externally publishedYes

Fingerprint

DBR lasers
Laser modes
tunable lasers
Tuning
tuning
retarding
Lasers
quantum well lasers
Semiconductor quantum wells
lasers
examination
Wavelength
output
curves
wavelengths

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Physics and Astronomy (miscellaneous)
  • Atomic and Molecular Physics, and Optics

Cite this

The side-mode-suppression ratio of a tunable DBR laser. / Woodward, S. L.; Habbab, I. M I; Koch, Thomas L; Koren, U.

In: IEEE Photonics Technology Letters, Vol. 2, No. 12, 12.1990, p. 854-856.

Research output: Contribution to journalArticle

Woodward, S. L. ; Habbab, I. M I ; Koch, Thomas L ; Koren, U. / The side-mode-suppression ratio of a tunable DBR laser. In: IEEE Photonics Technology Letters. 1990 ; Vol. 2, No. 12. pp. 854-856.
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