Fibre grating DFB laser for generation of optical microwave signal

W. Zhang*, Y.C. Lai, J.A.R. Williams, C. Lu, L. Zhang, I. Bennion

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


A distributed feedback fibre laser is realized with a phase-shifted fibre Bragg grating. Dual-mode operation is obtained by means of linear birefringence for heterodyne generation of optical microwave signal. The two modes, operating in the same cavity produce a beat signal with exceptionally low-phase noise. The linewidth of the resulting microwave signal obtained is less than 1 kHz.

Original languageEnglish
Pages (from-to)369-371
Number of pages3
JournalOptics and Laser Technology
Issue number5
Publication statusPublished - Jul 2000


  • heterodyne
  • optical phase locked loop
  • phase-shifteed grating


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