Photorefractive beam splitter for free-space optical interconnections

D. Scott Gardner, Philippe J. Marchand, Phil Harvey, W. Lee Hendrick, Sadik C. Esener

Research output: Contribution to journalArticlepeer-review

8 Scopus citations


A photorefractive beam splitter (PRBS) is introduced as an alternative to a polarizing beam splitter (PBS) for coupling optical power into reflective modulators in a free-space optical interconnection system. The PRBS uses a single diffraction grating recorded in a photorefractive material to redirect the incident laser light into the first diffraction order and onto the modulators. Reflected interconnection light not matching the Bragg angle criteria transmits uncoupled through the beam splitter. Experimental results show that the PRBS provides better, more uniform transmission for off-axis beams than the currently used PBS.

Original languageEnglish (US)
Pages (from-to)6178-6181
Number of pages4
JournalApplied Optics
Issue number26
StatePublished - Sep 10 1998
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Engineering (miscellaneous)
  • Electrical and Electronic Engineering


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