Picosecond difference-frequency-generation in orientation-patterned gallium phosphide
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hdl:2117/113001
Tipus de documentArticle
Data publicació2017-08-07
EditorOSA
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Abstract
We report the generation of tunable high-repetition-rate picosecond radiation in the
mid-infrared using the new quasi-phase-matched nonlinear material of orientation-patterned
gallium phosphide (OP-GaP). The source is realized by single-pass difference-frequencygeneration
(DFG) between the output signal of a picosecond optical parametric oscillator
(OPO) tunable across 1609-1637 nm with input pump pulses at 1064 nm in OP-GaP, resulting
in tunable radiation across 3040-3132 nm. Using a 40-mm-long crystal, we have generated up
to 57 mW of DFG average power at ~80 MHz repetition rate for a pump power of 5 W and
signal power of 0.9 W, with >30 mW over >50% of the tuning range. The DFG source
exhibits a passive power stability better than 3.2% rms over 1 hour in good spatial beam
quality. To the best of our knowledge, this is the first picosecond frequency conversion source
based on OP-GaP
CitacióCasals, J. [et al.]. Picosecond difference-frequency-generation in orientation-patterned gallium phosphide. "Optics Express", 7 Agost 2017, vol. 25, núm. 16, p. 19595-19602.
ISSN1094-4087
Versió de l'editorhttps://www.osapublishing.org/oe/abstract.cfm?uri=oe-25-16-19595
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