Publication Date:
2018-04-04
Description:
A combined infrared suspended-core fiber (SCF) is fabricated using a stacked glass extrusion method. As 2 S 3 glass is used as the center core host material, and Ge 20 As 20 Se 15 Te 45 glass is used to form supporting bridges and act as the ring host material. In this paper, a continuous and robust extrusion process was used to fabricate the SCFs on stacked chalcogenide glass substrates. Glass flow disruption and shear band formation at the interfaces between the different glasses were avoided while the suspended core was formed directly from the core glass. The near-field optical energy distribution image of the resulting multimaterial SCF shows that light propagates effectively in the core. The losses of the multimaterial SCF were also measured at wavelengths ranging between 2.5 and 7 μm, and the lowest transmission loss was 1.86 dB/m at 4.8 μm. The spectral behavior of the supercontinuum (SC) in the SCF is investigated by varying the pump wavelength and the pump power. A mid-infrared SC spanning a wavelength range from 2.05 to 6.95 μm is generated in a 19-cm-long combined chalcogenide SCF that is pumped at 4.5 μm using an optical parametric amplifier laser system.
Print ISSN:
0733-8724
Electronic ISSN:
1558-2213
Topics:
Electrical Engineering, Measurement and Control Technology
