Broadband optical parametric gain by novel highly nonlinear tellurite hybrid microstructured optical fiber with four zero-dispersion wavelengths

Tong Hoang Tuan; Tonglei Cheng; Koji Asano; Zhongchao Duan; Takenobu Suzuki; Yasutake Ohishi

doi:10.1117/12.2037192

7 March 2014 Broadband optical parametric gain by novel highly nonlinear tellurite hybrid microstructured optical fiber with four zero-dispersion wavelengths

Tong Hoang Tuan, Tonglei Cheng, Koji Asano, Zhongchao Duan, Takenobu Suzuki, Yasutake Ohishi

Author Affiliations +

Proceedings Volume 8982, Optical Components and Materials XI; 89821L (2014) https://doi.org/10.1117/12.2037192
Event: SPIE OPTO, 2014, San Francisco, California, United States

Abstract

Fiber-optical parametric amplification (FOPA) has been intensively studied and exploited for various interesting applications such as wavelength conversion, wavelength division multiplexing, optical signal processing and so on. However, its efficiency is governed by the fiber nonlinearity and chromatic dispersion. By employing tellurite glass we propose novel highly nonlinear tellurite hybrid microstructured optical fibers (HMOFs) which have nonlinearity of 6642 W^-1km^-1 and near-zero flattened dispersion profiles from 1.3 to 2.3 μm with four zero dispersion wavelengths for FOPA applications. The linear phase-mismatch, optical signal gain and gain bandwidth are precisely calculated by using a full propagation constant which includes the contribution of all high-order dispersion parameters. In contrast with silica fibers, the signal gain is shown to be generated in the wavelength regions where Δβ<-4ΥP and the parametric gain coefficient g is imaginary. It is shown that the proposed tellurite HMOFs with short fiber length L<90 cm have the gain bandwidth as broad as 760 nm when it is pumped at 1550 nm. The increase in pump power from 1 to 4 W not only increases the signal gain but also broadens the FOPA gain bandwidth. At 1700-nm pump wavelength, the signal gain larger than 14 dB is obtained over a very broad gain bandwidth of 1200 nm (from 1290 to 2490 nm). To our best knowledge, it is the first time that highly nonlinear tellurite HMOFs are demonstrated as attractive candidates for high performance of FOPA.

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Tong Hoang Tuan, Tonglei Cheng, Koji Asano, Zhongchao Duan, Takenobu Suzuki, and Yasutake Ohishi "Broadband optical parametric gain by novel highly nonlinear tellurite hybrid microstructured optical fiber with four zero-dispersion wavelengths", Proc. SPIE 8982, Optical Components and Materials XI, 89821L (7 March 2014); https://doi.org/10.1117/12.2037192

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KEYWORDS

Dispersion

Optical fibers

Refractive index

Nonlinear optics

Structured optical fibers

Glasses

Cladding

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