Beam control and manipulation in vertical cavity surface emitting lasers

I. H. White, P. Dowd, P. J. Heard, J. A. Nicholson, B. Zhu, L. Raddatz, R. V. Penty, J. C.C. Day, G. C. Allen, S. W. Corzine, M. R.T. Tan

Research output: Contribution to journalConference articlepeer-review


This paper reviews novel techniques which are used to modify the properties of the optical beam generated by vertical cavity surface emitting laser diodes. The main emphasis within the paper concerns the use of etches applied to the device surface either adjacent to or across its optical aperture. Such etches can be used to modify facet reflectivities sufficiently to pin the optical mode precisely and reduce the onset of higher order modes. In addition single polarisation operation is achieved by using deeper etches placed outside the light emitting region. Using this technique, previously multimode components may be transformed to single mode components with precisely fixed polarisation states. The effect of these etches on other lasing properties such as spectral performance and power efficiency is also discussed.

Original languageEnglish
Pages (from-to)64-72
Number of pages9
JournalProceedings of SPIE - The International Society for Optical Engineering
Publication statusPublished - 1 Dec 1998
EventOptoelectronic Integrated Circuits II - San Jose, CA, USA United States
Duration: 28 Jan 199830 Jan 1998


  • Ion Beam Etching
  • Mode control
  • Polarisation control
  • Vertical-cavity surface-emitting lasers

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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