Formation of multiple gratings in a photorefractive crystal using a single diffractive mask

Seunghoon Han; Jinhong Park; Hwi Kim; Byungchoon Yang; Jung Wook Paek; Byoungho Lee

doi:10.1117/12.452632

20 November 2002 Formation of multiple gratings in the photorefractive crystal using a single diffractive mask

Seunghoon Han, Jinhong Park, Hwi Kim, Byungchoon Yang, Jung Wook Paek, Byoungho Lee

Proceedings Volume 4803, Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications VIII; (2002) https://doi.org/10.1117/12.452632
Event: International Symposium on Optical Science and Technology, 2002, Seattle, WA, United States

Abstract

We propose a method of multiple grating formation in a photorefractive crystal by using a single diffractive mask. The diffractive mask is composed of several spatial frequency components so that the propagating optical wave produces three-dimensional interference patterns in the crystal. We note that it is a system of amplitude and phase gratings having various spatial frequency spectrum. The recorded pattern then can control the flow of another optical wave (signal wave) with different wavelength. This is an integrated version of the conventional hologram multiplexing technique in time domain. The recording and signal wavevectors are determined to satisfy the phase matching condition through the recorded pattern (i.e. Bragg grating). Because this recording method excludes complex time scheduling and mechanical movement of the conventional multiplexing, it provides stability and compactness in the recording procedure for mass production and can make optical devices possessing multiple Bragg gratings.

Citation Download Citation

Seunghoon Han, Jinhong Park, Hwi Kim, Byungchoon Yang, Jung Wook Paek, and Byoungho Lee "Formation of multiple gratings in the photorefractive crystal using a single diffractive mask", Proc. SPIE 4803, Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications VIII, (20 November 2002); https://doi.org/10.1117/12.452632

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