16 March 2015 Flattened supercontinuum generation in tellurite-phosphate and chalcogenide-tellurite hybrid microstructured optical fibers with tailored chromatic dispersion spectra
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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, 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); doi: 10.1117/12.2077035; https://doi.org/10.1117/12.2077035
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