Modulated millimeter-wave generation by external injection of a gain switched laser

H. Shams, P. Perry, P. M. Anandarajah, L. P. Barry

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


We propose and experimentally demonstrate a novel technique for optical generation of modulated millimeter-wave (mm-wave) by using a gain switched laser (GSL) that is externally injected with a modulated light source. The GSL generates a stream of optical pulses, and these pulses exhibit a small shift in the time domain when the GSL is injected with an on-off keyed (OOK) optical data signal. This time shift can produce a phase modulated mm-wave signal at 60 GHz by suitable optical filtering of the GSL laser output. The system performance was analyzed for data streams at 1.25 Gb/s by using bit-error-rate (BER) measurements for back-to-back (BTB) and 3-km fiber transmission.

Original languageEnglish
Article number5701658
Pages (from-to)447-449
Number of pages3
JournalIEEE Photonics Technology Letters
Issue number7
Early online date24 Jan 2011
Publication statusPublished (in print/issue) - 1 Apr 2011


  • All-optical up-conversion
  • gain-switching
  • millimeter-wave (mm-wave) generation
  • optical fiber communication
  • radio-over-fiber (RoF)


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