Electric current tuning the self-oscillation frequency of EC-VCSELs

Clinton J. Smith, Wen Di Li, Gerard Wysocki, Stephen Y. Chou

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


We demonstrate a new way to electrically tune the self-oscillation frequency of an external cavity VCSEL by changing the electrical current injected into the VCSEL, without using any mechanical moving parts. We found that for a self-oscillation frequency from 500 MHz to 4 GHz, the tuning range is up to 15% and the tuning rate is up to 800 MHz/mA. Our experiments and simulation show that the injection current tuning of self-oscillation frequency is due to a change in the VCSEL birefringence induced by changing the injection current.

Original languageEnglish (US)
Article number6557468
Pages (from-to)1707-1710
Number of pages4
JournalIEEE Photonics Technology Letters
Issue number17
StatePublished - 2013

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering


  • Lasers and electrooptics
  • birefringence
  • electrooptic effects
  • laser applications
  • optical modulation
  • vertical cavity surface emitting lasers


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