Optical amplification by two-wave mixing in lithium niobate waveguides

Hong Xi Zhang; Chan Hin Kam; Yan Zhou; Yuen Chuen Chan; Yee Loy Lam

doi:10.1117/12.363945

20 September 1999 Optical amplification by two-wave mixing in lithium niobate waveguides

Hong Xi Zhang, Chan Hin Kam, Yan Zhou, Yuen Chuen Chan, Yee Loy Lam

Proceedings Volume 3801, Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications V; (1999) https://doi.org/10.1117/12.363945
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1999, Denver, CO, United States

Abstract

Photorefractive Fe:LiNbO₃ planar waveguides have been fabricated by proton exchange method using Fe:LiNbO₃ as substrate and benzoic acid as exchange medium. The waveguide has a much larger refractive index increment than a Ti diffused one. Through end-face coupling, a pump beam and a signal beam were injected into the waveguide and the optical amplification properties of the waveguide have been investigated experimentally. The results showed that a hundred fold amplification gain could be obtained in a wide range of grating periods and an amplification gain of 180 was achieved easily. This scheme has potential applications in optical signal processing at not very high incident intensity.

Citation Download Citation

Hong Xi Zhang, Chan Hin Kam, Yan Zhou, Yuen Chuen Chan, and Yee Loy Lam "Optical amplification by two-wave mixing in lithium niobate waveguides", Proc. SPIE 3801, Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications V, (20 September 1999); https://doi.org/10.1117/12.363945

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