Efficient carrier-envelope phase tunable mid-infrared frequency combs based on CW-seeded optical parametric generation

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Abstract

We present an efficient method for generating frequency combs in the mid-infrared (MIR) spectral range in bulk lithium niobate crystals as well as in waveguides. Our approach is simple and robust, since it is based on single-pass configuration of femtosecond Optical Parametric Generation (OPG) seeded by a telecom continuous-wave laser. Precise and fast tuning of the seed laser allows to rapidly change the offset frequency of the generated MIR comb independent of its repetition rate. The MIR comb offset frequency is inherently known, so its direct detection is not required. An additional degree of freedom that further complements the versatility of our light source is a unique way of repetition rate or mode spacing adjustments. This is achieved by our new concept of coherent multi-seeding that depending on the configuration allows for pulse train modulation and mode spacing, or repetition rate division by an integer number.
Original languageEnglish
Title of host publicationEOS Annual Meeting (EOSAM 2021)
Number of pages4
Place of PublicationLes Ulis
PublisherEDP sciences
Publication date2021
Article number11002
DOIs
Publication statusPublished - 2021
MoE publication typeA4 Article in conference proceedings
EventEOS Annual Meeting - Rome, Italy
Duration: 13 Sep 202117 Sep 2021
https://www.europeanoptics.org/events/eos/eosam2021.html

Publication series

NameEPJ Web of Conferences
Volume255
ISSN (Electronic)2100-014X

Fields of Science

  • 116 Chemical sciences

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