Abstract

Research efforts devoted to supercontinuum (SC) light sources in a fiber-format spanning the mid-infrared (mid-IR) molecular fingerprint region is currently undergoing a dramatic increase, particularly enforced by such demanding applications as biomolecular and environmental sensing. Among various glass compositions, chalcogenides have the highest non-linearity and the broadest transparency range extending further into the mid-IR where fluoride and tellurite glasses are no longer transparent [1]. Here we demonstrate SC generation in tapered suspended-core As2Se3 photonics crystal fibers pumped by a Cr2+:ZnSe ultrafast laser with a pulse duration of 35 fs, a repetition frequency of 170 MHz and an average power of 180 mW (30 kW peak power and 1 nJ pulse energy) at 2.4 μm, based on an improved design of that reported in Ref. [2]. The generated SC covers the spectral region from 1.4 to 4.2 μm.

© 2019 IEEE

PDF Article

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