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Frequency scanning and self-induced distributed feedback in semiconductor lasers with phase-conjugate feedback

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Abstract

Dye lasers with feedback from photorefractive self-pumped passive phase-conjugate mirrors (PPCMs) have been shown to exhibit repetitive frequency scanning behavior.1 We report here observations of similar effects in a GaAIAs diode laser with feedback from a barium titanate ring PPCM. The direction of the scan and whether it occurs repetitively may be controlled by adjusting the alignment of the PPCM, The frequency scans over a 10-nm range at a rate of 0.2 nm/s when the intensity of the light incident on the PPCM is 5 W/cm.

© 1986 Optical Society of America

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