Chalcogenide all-solid hybrid microstructured optical fiber with polarization maintaining properties and its mid-infrared supercontinuum generation
Hoang Tuan Tong, Ayaka Koumura, Asuka Nakatani, Hoa Phuoc Trung Nguyen, Morio Matsumoto, Goichi Sakai, Takenobu Suzuki, Yasutake Ohishi
Abstract
In this paper, we report a successful fabrication of a highly nonlinear chalcogenide all-solid hybrid microstructured optical fiber with polarization maintaining properties and a mid-infrared SC generation. Up to 4.5 × 10 −4 at 10 µm of the fiber birefringence can be realized by employing a single As 2 Se 3 core and two As 2 S 5 rods horizontally aligned in the AsSe 2 cladding. The fiber possesses a near-zero and flattened all-normal chromatic dispersion profile over the wavelength range from 5 to 10 µm. The polarization maintaining properties of the fiber is experimentally confirmed and a broadband supercontinuum spectrum from 2 to 10 µm in the mid-infrared window was experimentally demonstrated.