Superresolution by spatial filtering of high-order Laguerre-Gaussian mode vertical cavity surface emitting lasers

Richard A. Flynn, Osman Kibar, Sadik C. Esener

Research output: Contribution to journalConference article

Abstract

Vertical cavity surface emitting lasers (VCSEL) with high-order Laguerre-Gaussian (LG) mode profiles, are superresolved for optical data storage spots up to 50% smaller than the classical diffraction limit of equivalent fundamental Gaussian modes with better than 10:1 signal to noise ratio between main and side lobe intensities. LG mode profiles are attained using a post-fabrication, post-packaging annealing process, demonstrated to be repeatable within a given batch, on proton-implant midsize aperture VCSEL. Superresolution, or manipulation of the input beam profile, is used to decrease the size of the spot on the disk surface to below its classical diffraction limit.

Original languageEnglish (US)
Pages (from-to)43-45
Number of pages3
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume3864
StatePublished - Dec 1 1999
Externally publishedYes
EventProceedings of the 1999 Joint International Symposium on Optical Memory and Optical Optical Data Storage (ISOM/ODS'99) - Koloa, HI, USA
Duration: Jul 12 1999Jul 15 1999

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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