Tunable multiple-quantum-well distributed-bragg-reflector lasers as tunable narrowband receivers

T. L. Koch, F. S. Choa, F. Heismann, U. Koren

Research output: Contribution to journalArticlepeer-review

45 Scopus citations


We report a tunable receiver based on a MQW-DBR laser biased just below threshold. The device simultaneously integrates the functions of a tunable filter, optical amplifier, photodetector and, if desired, an FSK discriminator. Using identical devices for both a transmitter and a receiver, we demonstrate FSK transmission up to 250 Mbit/s with sensitivities in the ∼-30dBm range for 10-9 BER. Speed is limited by the transmitter FM response, and independent speed measurements indicate a detection bandwidth of at least 1.7 GHz.

Original languageEnglish (US)
Pages (from-to)890-892
Number of pages3
JournalElectronics Letters
Issue number14
StatePublished - Jun 22 1989


  • Optical filters
  • Optical receivers
  • Photodetectors
  • Semiconductor lasers

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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