Abstract

We report on infrared supercontinuum (SC) generation through laser filamentation and subsequent nonlinear propagation in a step-index As2S3 fiber. The 100 μm core and high-purity As2S3 fiber used exhibit zero-dispersion wavelength around 4.5 μm, a mid-infrared background loss of 0.2dB/m, and a maximum loss of only 0.55dB/m at the S-H absorption peak around 4.05 μm. When pumping with ultrashort laser pulses slightly above the S-H absorption band, broadband infrared supercontinua were generated with a 20 dB spectral flatness spanning from 1.5 up to 7 μm. The efficiency and spectral shape of the SC produced by ultrashort pulses in large-core As2S3 fiber are mainly determined by its dispersion, the S-H contaminant absorption, and the mid-infrared nonlinear absorption.

Full Article  |  PDF Article
OSA Recommended Articles
Broadband mid-infrared supercontinuum generation in 1-meter-long As2S3-based fiber with ultra-large core diameter

Peiqing Zhang, Peilong Yang, Xunsi Wang, Rongping Wang, Shixun Dai, and Qiuhua Nie
Opt. Express 24(25) 28400-28408 (2016)

Mid-infrared supercontinuum generation in a suspended-core As2S3 chalcogenide microstructured optical fiber

Weiqing Gao, Mohammed El Amraoui, Meisong Liao, Hiroyasu Kawashima, Zhongchao Duan, Dinghuan Deng, Tonglei Cheng, Takenobu Suzuki, Younès Messaddeq, and Yasutake Ohishi
Opt. Express 21(8) 9573-9583 (2013)

Mid-infrared supercontinuum generation in step-index As2S3 fibers pumped by a nanosecond shortwave-infrared supercontinuum pump source

Jinmei Yao, Bin Zhang, Ke Yin, Linyong Yang, Jing Hou, and Qisheng Lu
Opt. Express 24(13) 15093-15100 (2016)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (3)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription