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

Mikhail Roiz, Jui-Yu Lai, Juho Karhu, Markku Vainio

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

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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)
Place of PublicationInternational
PublisherEDP Sciences
DOIs
Publication statusPublished - 2021
MoE publication typeA4 Conference publication
EventEuropean Optical Society Annual Meeting - Rome, Italy
Duration: 13 Sept 202117 Sept 2021

Publication series

NameEPJ Web of Conferences
PublisherEDP sciences
ISSN (Print)2101-6275
ISSN (Electronic)2100-014X

Conference

ConferenceEuropean Optical Society Annual Meeting
Abbreviated titleEOSAM
Country/TerritoryItaly
CityRome
Period13/09/202117/09/2021

Keywords

  • 116 Chemical sciences

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