Mid-infrared laser emission from Fe: ZnSe cladding waveguides

A. Lancaster, G. Cook, S. A. McDaniel, J. Evans, P. A. Berry, Jonathan D Shephard, Ajoy Kumar Kar*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

28 Citations (Scopus)
57 Downloads (Pure)


The authors present a mid-IR depressed cladding waveguide laser in Fe:ZnSe. The laser produced a maximum output power of 76 mW at 4122 nm and laser thresholds as low as 154 mW were demonstrated. This represents a 44% reduction in threshold power compared with the bulk laser system demonstrated in this paper. The waveguide laser was found to have a narrow spectral linewidth of 6 nm FHWM compared to the 50 nm typical of bulk Fe:ZnSe lasers.

Original languageEnglish
Article number031108
JournalApplied Physics Letters
Issue number3
Publication statusPublished - 20 Jul 2015

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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