Far-detuned four-wave mixing for mid-infrared wavelength conversion in chalcogenide As2S5 suspended core fiber

Kenshiro Nagasaka; H. Tuan Tong; Hoa Phuoc Trung Nguyen; Takenobu Suzuki; Yasutake Ohishi

doi:10.1117/12.2288064

22 February 2018 Far-detuned four-wave mixing for mid-infrared wavelength conversion in chalcogenide As₂S₅ suspended core fiber

Kenshiro Nagasaka, H. Tuan Tong, Hoa Phuoc Trung Nguyen, Takenobu Suzuki, Yasutake Ohishi

Author Affiliations +

Proceedings Volume 10528, Optical Components and Materials XV; 105281M (2018) https://doi.org/10.1117/12.2288064
Event: SPIE OPTO, 2018, San Francisco, California, United States

Abstract

The mid-infrared (MIR) range is of great interest because fundamental molecular vibrational absorption bands exist in the MIR range. In the MIR range, typically, lasing can be generated using quantum cascade lasers, cascaded Raman lasers, and optical parametric oscillators (OPOs). Recently, fiber OPOs (FOPOs) in the MIR range have received attention because of their flexibility of the parametric gain curve designing the chromatic dispersion. Chalcogenide glass is the promising candidate for MIR FOPO because of their wide transmission window and high nonlinear coefficient. In the present paper, we design the chromatic dispersion of four-hole As₂S₅ chalcogenide suspended core fiber (SCF), and demonstrate a far-detuned four-wave mixing (FWM) for MIR FOPO. We design the four-hole As₂S₅ chalcogenide SCF for far-detuned FWM using a ∼2 μm pump source. A four-hole As₂S₅ chalcogenide SCF which has a core diameter of 3.25 μm is fabricated using a homemade draw tower. We experimentally observed far-detuned FWM in the four-hole As₂S₅ chalcogenide SCF. A detuning frequency of over 80 THz is measured in 21 cm long fiber using a 2.7 ps pulse laser at 1.96 μm. The experimental observation was confirmed by numerical demonstration.

Citation Download Citation

Kenshiro Nagasaka, H. Tuan Tong, Hoa Phuoc Trung Nguyen, Takenobu Suzuki, and Yasutake Ohishi "Far-detuned four-wave mixing for mid-infrared wavelength conversion in chalcogenide As₂S₅ suspended core fiber", Proc. SPIE 10528, Optical Components and Materials XV, 105281M (22 February 2018); https://doi.org/10.1117/12.2288064

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