Experimental control of steady state photorefractive self-focusing in InP:Fe at infrared wavelengths

This paper reports an experimental study of the self-focusing process in iron doped indium phosphide at an 1.06 micron wavelength, identifying the influence of temperature, beam intensity and background illumination for two different iron dopings. We point out that the iron ionization ratio is at th...

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Bibliographic Details
Published in:Applied physics. B, Lasers and optics Lasers and optics, 2011-09, Vol.104 (4), p.887-895
Main Authors: Dan, C., Wolfersberger, D., Fressengeas, N.
Format: Article
Language:English
Subjects:
Beams (radiation)
Crystals
Engineering
Illumination
Infrared
Iron
Lasers
Optical Devices
Optics
Photonics
Physical Chemistry
Physics
Physics and Astronomy
Quantum Optics
Steady state
Wavelengths
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Summary:This paper reports an experimental study of the self-focusing process in iron doped indium phosphide at an 1.06 micron wavelength, identifying the influence of temperature, beam intensity and background illumination for two different iron dopings. We point out that the iron ionization ratio is at the origin of different qualitative behavior previously reported and we show that it is possible to reproduce the said behaviors in the same crystal by applying a uniform illumination, allowing their eventual control for dynamic wave-guiding.
ISSN:0946-2171
1432-0649
DOI:10.1007/s00340-011-4438-y