Abstract

In this Letter, we report, to the best of our knowledge, the largest effective single-mode mid-infrared chalcogenide (ChG) fiber. Two thermally matched ChG glasses with a large index contrast of 0.35 are chosen for constructing all-solid photonic crystal fiber (PCF) with two rings of “holey” microstructured cladding. Single-mode operation is confirmed in the fabricated ChG PCF with a core diameter of 91.2 μm, from both near-field and far-field observation at 4 μm. Ultralow numerical aperture of <0.025 has been observed at wavelengths between 2.5 and 4.0 μm. The fundamental mode area is calculated to be 5200μm2 at 4 μm, where the propagation loss of the ChG PCF is measured to be 5.2 dB/m. Broadband 3.5 and 7.5 μm supercontinuum has been generated in a 35-cm-long ultralarge-mode-area PCF.

© 2019 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Increased mid-infrared supercontinuum bandwidth and average power by tapering large-mode-area chalcogenide photonic crystal fibers

Christian Rosenberg Petersen, Rasmus D. Engelsholm, Christos Markos, Laurent Brilland, Céline Caillaud, Johann Trolès, and Ole Bang
Opt. Express 25(13) 15336-15348 (2017)

Mid-infrared supercontinuum generation in low-loss single-mode Te-rich chalcogenide fiber

Xiange Wang, Zheming Zhao, Xunsi Wang, Kai Jiao, Zugang Xue, Youmei Tian, Peiqing Zhang, Xiang Shen, Shixun Dai, and Rongping Wang
Opt. Mater. Express 9(8) 3487-3493 (2019)

Coherent mid-infrared supercontinuum generation in all-solid chalcogenide microstructured fibers with all-normal dispersion

Lai Liu, Tonglei Cheng, Kenshiro Nagasaka, Hoangtuan Tong, Guanshi Qin, Takenobu Suzuki, and Yasutake Ohishi
Opt. Lett. 41(2) 392-395 (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 (5)

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

Equations (2)

You do not have subscription access to this journal. Equations 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