Photorefractive beamsplitter for free-space optical interconnection systems

D. Scott Gardner; Phillip C. Harvey; W. Lee Hendrick; Philippe J. Marchand; Sadik C. Esener

doi:10.1117/12.274419

15 May 1997 Photorefractive beamsplitter for free-space optical interconnection systems

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

Proceedings Volume 3010, Diffractive and Holographic Device Technologies and Applications IV; (1997) https://doi.org/10.1117/12.274419
Event: Photonics West '97, 1997, San Jose, CA, United States

Abstract

A photorefractive beamsplitter (PRBS) is introduced as an alternative to a polarizing beamsplitter (PBS) for coupling optical power into reflective modulators in a free-space optical interconnection (FSOI) 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 through the beamsplitter uncoupled. Experimental results show that the PRBS provides better uniform transmission for off-axis beams than the currently used PBS.

Citation Download Citation

D. Scott Gardner, Phillip C. Harvey, W. Lee Hendrick, Philippe J. Marchand, and Sadik C. Esener "Photorefractive beamsplitter for free-space optical interconnection systems", Proc. SPIE 3010, Diffractive and Holographic Device Technologies and Applications IV, (15 May 1997); https://doi.org/10.1117/12.274419

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