Photorefractive Effect In Lithium Niobate Directional Couplers

C T. Mueller; E Garmire

doi:10.1117/12.939465

26 September 1984 Photorefractive Effect In Lithium Niobate Directional Couplers

C T. Mueller, E Garmire

Proceedings Volume 0460, Processing of Guided Wave Optoelectronic Materials I; (1984) https://doi.org/10.1117/12.939465
Event: 1984 Los Angeles Technical Symposium, 1984, Los Angeles, United States

Abstract

Experimental results on the photorefractive effect in Ti-indiffused LiNbO₃, directional couplers at GaAs and He-Ne wavelengths are presented. The photorefractive effect has been observed as drift in the switching state of this device at GaAs wavelengths (0.81 μm and 0.85 μm) for intensities (powers) as low as 32 W/cm² (3.2 μW). Analysts of this effect indicates refractive index changes as large as 2 x 10^-4 are occurring at λ = 0.63 μm. In addition, an analytical model of the mode profiles of Ti-indiffused LiNbO₃ channel wave-guides for calculating the coupling characteristics of diffused directional couplers is presented.

Citation Download Citation

C T. Mueller and E Garmire "Photorefractive Effect In Lithium Niobate Directional Couplers", Proc. SPIE 0460, Processing of Guided Wave Optoelectronic Materials I, (26 September 1984); https://doi.org/10.1117/12.939465

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