Photovoltaic Induced Grating Instabilities (Preprint)

The PV field is responsible for undesirable grating recording noise, or spikes in transmitted power. Corresponding spikes in the transmission of light incident at the Bragg angle indicate the grating is partially destroyed rather than momentarily dephased. The noise is most likely due to a sudden st...

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Bibliographic Details
Main Authors: Evans, D R, Cook, G, Carns, J L, Saleh, M A
Format: Report
Language:English
Subjects:
BRAGG ANGLE
BRIEFING CHARTS
CONTRA-DIRECTIONAL COUPLING
COUPLING(INTERACTION)
Crystallography
Electrooptical and Optoelectronic Devices
EXPERIMENTAL DESIGN
FARADAY ISOLATORS
GRATINGS(SPECTRA)
LITHIUM NIOBATES
NONLINEAR OPTICS
Optics
PE62102F
PHOTOREFRACTIVE MATERIALS
PHOTOVOLTAIC EFFECT
PHOTOVOLTAIC INDUCED GRATING
SYMPOSIA
TWO BEAM COUPLING
WUAFRLM03R1000
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Description
Summary:The PV field is responsible for undesirable grating recording noise, or spikes in transmitted power. Corresponding spikes in the transmission of light incident at the Bragg angle indicate the grating is partially destroyed rather than momentarily dephased. The noise is most likely due to a sudden strong current and/or avalanche current flow through the bulk crystal, such that the E(sub sc) is randomized and the grating is partially destroyed. Submitted to the proceedings of the Third International Photorefractive Workshop, sponsored by AFRL/MLPJ.