KTN optical waveguide devices with an extremely large electro-optic effect

Kazuo Fujiura; Koichiro Nakamura

doi:10.1117/12.580527

10 January 2005 KTN optical waveguide devices with an extremely large electro-optic effect

Kazuo Fujiura, Koichiro Nakamura

Proceedings Volume 5623, Passive Components and Fiber-based Devices; (2005) https://doi.org/10.1117/12.580527
Event: Asia-Pacific Optical Communications, 2004, Beijing, China

Abstract

KTa_1-xNb_xO₃ crystal exhibits an extremely large quadratic electro-optic effect, which is 20 times greater than that of LiNbO₃. This property makes this crystal attractive for optical signal processing applications. We have successfully prepared a 2-inch KTN crystal that exhibits the largest quadratic electro-optic coefficient ever reported. We have also fabricated a buried optical waveguide with a low transmission loss and demonstrated an optical switch with a driving voltage of 2.6 V and a 92 nsec rise time. This paper reviews the crystal growth, material properties, electro-optic effect, waveguide fabrication, and optical switch operation of KTN crystal.

Citation Download Citation

Kazuo Fujiura and Koichiro Nakamura "KTN optical waveguide devices with an extremely large electro-optic effect", Proc. SPIE 5623, Passive Components and Fiber-based Devices, (10 January 2005); https://doi.org/10.1117/12.580527

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