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Seeded optical parametric generation in CdSiP2 pumped by a Raman fiber amplifier at 124 µm

Authors
  • Murray, RT
  • Chandran, AM
  • Battle, RA
  • Runcorn, TH
  • Schunemann, PG
  • Zawilski, KT
  • Guha, S
  • Taylor, JR
Publication Date
Mar 25, 2021
Source
Spiral - Imperial College Digital Repository
Keywords
Language
English
License
Unknown

Abstract

We report a seeded optical parametric generator (OPG) producing tunable radiation from 4.2–4.6 µm. The seeded OPG employs a 13 mm long CdSiP2 (CSP) crystal cut for non-critical phase-matching, pumped by a nanosecond-pulsed, MHz repetition rate Raman fiber amplifier system at 1.24 µm. A filtered, continuous-wave fiber supercontinuum source at 1.72 µm is used as the seed. The source generates up to 0.25 W of mid-infrared (MIR) idler power with a total pump conversion of 42% (combined signal and idler).

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