Design of hexagonal photonic crystal fiber with Ge10As22Se68 chalcogenide core and As2S3 cladding for mid-infrared supercontinuum generation

Wang, Wenxuan; Wu, Zongyuan; Yang, Dan; Zhao, Yuyu; Cheng, Tonglei

doi:10.1007/s11082-023-05337-z

Cited by 2 publications

(2 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Adjustment of fiber length and pulse parameters yielded a SC width of 11 μm. Compared to the SC generation from 1 to 7 μm by a chalcogenide photonic crystal fiber reported before in [15], the SC spectral range in this work is much broader. Within a certain range, increasing transmission distance and average pump power of the optical fiber promoted SC broadening, while reducing pulse width also facilitated broadening.…”

Section: Discussionmentioning

confidence: 60%

“…Herein, we propose a chalcogenide double-clad fiber that exhibits dispersion-control characteristics similar to those of photonic crystal fibers while maintaining a simpler structure that is more conducive to fabrication than photonic crystal fibers [15,16]. A chalcogenide optical fiber with a zero-dispersion point and relatively smooth dispersion distribution is obtained by adjusting the fiber parameters.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Broadband flat supercontinuum generated by chalcogenide double-clad step-index fiber with special dispersion

Liu,

Li,

Liao

et al. 2024

Phys. Scr.

View full text Add to dashboard Cite

To achave a broader supercontinuum in the mid-infrared band, a chalcogenide double-clad step-index fiber is proposed. Comprising As2Se3, AsSe2, and As2S5 glass, this fiber effectively confines light within the core, minimizing fiber dispersion fluctuations. By iteratively adjusting the dispersion curve of the fiber, enhancement of the supercontinuum spectrum generation is possible. Spectral broadening primarily results from four-wave mixing and self-phase modulation. Raman scattering within the pulse generates unstable higher-order solitons, which, upon breakup, contribute to spectrum broadening. This study explores the effects of pulse laser parameters and fiber length on supercontinuum generation, obtains regular cognition and offers theoretical analyses of the results. Through optimization of parameters, a mid-infrared supercontinuum with an 11 μm width is achieved. These findings underscore the potential of chalcogenide double-clad step-index fiber for generating a mid-infrared supercontinuum light source. The designed fiber structure should be helpful in supercontinuum sources, bio-molecule sensing, and spectroscopy.

show abstract

Section: Discussionmentioning

confidence: 60%

Section: Introductionmentioning

confidence: 99%