Flattened supercontinuum generation in tellurite-phosphate and chalcogenide-tellurite hybrid microstructured optical fibers with tailored chromatic dispersion spectra

Hoang Tuan Tong; Hiroyasu Kawashima; Koji Asano; Zhongchao Duan; Xiaojie Xue; Tonglei Cheng; Dinghuan Deng; Morio Matsumoto; Hiroshige Tezuka; Takenobu Suzuki; Yasutake Ohishi

doi:10.1117/12.2077035

16 March 2015 Flattened supercontinuum generation in tellurite-phosphate and chalcogenide-tellurite hybrid microstructured optical fibers with tailored chromatic dispersion spectra

Hoang Tuan Tong, Hiroyasu Kawashima, Koji Asano, Zhongchao Duan, Xiaojie Xue, Tonglei Cheng, Dinghuan Deng, Morio Matsumoto, Hiroshige Tezuka, Takenobu Suzuki, Yasutake Ohishi

Author Affiliations +

Proceedings Volume 9359, Optical Components and Materials XII; 93591I (2015) https://doi.org/10.1117/12.2077035
Event: SPIE OPTO, 2015, San Francisco, California, United States

Abstract

We report here flattened supercontinuum (SC) generated in tellurite-phosphate and chalcogenide-tellurite hybrid microstructured optical fibers (HMOFs) whose chromatic dispersion spectra are tailored with high freedom due to large refractive index difference (∆n) between the core and cladding glasses. It is shown in the simulation that the tellurite-phosphate HMOF whose chromatic dispersion spectrum is near-zero and flattened with three zero-dispersion wavelengths (ZDWs) over a wide wavelength range from 1000 to 4000 nm is beneficial to obtain broad and flattened SC spectra. By using a large ∆n of 0.49, the tellurite-phosphate HMOF which has flattened chromatic dispersion and three ZDWs is successfully fabricated. When a 20-cm-long tellurite-phosphate HMOF is pumped at 1550 nm with a 1560-W peak power, an SC extended from ~800 to 2400 nm where ~5-dB spectral flatness in the wavelength ranges from 890 to 1425 nm and from 1875 to 2400 nm (~1060-nm bandwidth in total) is observed. In addition, a flattened SC spectrum with ~6-dB spectral flatness over a broad wavelength range from 950 to 3350 nm (2400-nm bandwidth in total) is generated by pumping a 1-cm-long chalcogenide-tellurite HMOF at 2300 nm with a 40-MW peak power.

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Hoang Tuan Tong, Hiroyasu Kawashima, Koji Asano, Zhongchao Duan, Xiaojie Xue, Tonglei Cheng, Dinghuan Deng, Morio Matsumoto, Hiroshige Tezuka, Takenobu Suzuki, and Yasutake Ohishi "Flattened supercontinuum generation in tellurite-phosphate and chalcogenide-tellurite hybrid microstructured optical fibers with tailored chromatic dispersion spectra", Proc. SPIE 9359, Optical Components and Materials XII, 93591I (16 March 2015); https://doi.org/10.1117/12.2077035

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