Multichannel grating cavity (MGC) laser transmitter for wavelength division multiplexing applications

K. O. Nyairo, I. H. White, P. A. Kirkby, C. J. Armistead

Research output: Contribution to journalArticlepeer-review


A detailed experimental investigation of a wavelength switchable multichannel grating cavity (MGC) laser is reported with properties particularly suitable for applications in broadband wavelength division multiplexing systems. The source consists of a bar of laser ridges with one facet antireflection (AR) coated, a collimating lens and a diffraction grating. By changing the electrical bias to individual laser ridges, precise wavelength switching is achieved across the complete gain spectrum of the diode laser material. A detailed investigation of multiple simultaneous channel generation is reported and a method is outlined to overcome channel crosstalk. Good agreement between theory and experiment is reported.

Original languageEnglish
Pages (from-to)337-342
Number of pages6
JournalIEE proceedings. Part J (Optoelectronics)
Issue number5
Publication statusPublished - 1 Jan 1991

ASJC Scopus subject areas

  • General Engineering


Dive into the research topics of 'Multichannel grating cavity (MGC) laser transmitter for wavelength division multiplexing applications'. Together they form a unique fingerprint.

Cite this