Spectral characterization of a frequency comb based on cascaded quadratic nonlinearities inside an optical parametric oscillator

Ville Ulvila, C. R. Phillips, Lauri Halonen, Markku Vainio

Research output: Contribution to journalArticleScientificpeer-review

6 Citations (Scopus)

Abstract

We present an experimental study of optical frequency comb generation based on cascaded quadratic nonlinearities inside a continuous-wave-pumped optical parametric oscillator. We demonstrate comb states which produce narrow-linewidth intermode beat note signals, and we verify the mode-spacing uniformity of the comb at the Hertz level. We also show that the spectral quality of the comb can be improved by modulating the parametric gain at a frequency that corresponds to the comb mode spacing. We have reached a high average output power of over 4 W in the near-infrared region, at ~2µm.
Original languageEnglish
Article number033816
JournalPhysical Review A: Atomic, Molecular, and Optical Physics
Volume92
Issue number3
DOIs
Publication statusPublished - 10 Sep 2015
MoE publication typeA1 Journal article-refereed

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parametric amplifiers
nonlinearity
spacing
continuous radiation
synchronism
output

Cite this

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title = "Spectral characterization of a frequency comb based on cascaded quadratic nonlinearities inside an optical parametric oscillator",
abstract = "We present an experimental study of optical frequency comb generation based on cascaded quadratic nonlinearities inside a continuous-wave-pumped optical parametric oscillator. We demonstrate comb states which produce narrow-linewidth intermode beat note signals, and we verify the mode-spacing uniformity of the comb at the Hertz level. We also show that the spectral quality of the comb can be improved by modulating the parametric gain at a frequency that corresponds to the comb mode spacing. We have reached a high average output power of over 4 W in the near-infrared region, at ~2µm.",
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Spectral characterization of a frequency comb based on cascaded quadratic nonlinearities inside an optical parametric oscillator. / Ulvila, Ville; Phillips, C. R.; Halonen, Lauri; Vainio, Markku.

In: Physical Review A: Atomic, Molecular, and Optical Physics, Vol. 92, No. 3, 033816, 10.09.2015.

Research output: Contribution to journalArticleScientificpeer-review

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AU - Phillips, C. R.

AU - Halonen, Lauri

AU - Vainio, Markku

PY - 2015/9/10

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N2 - We present an experimental study of optical frequency comb generation based on cascaded quadratic nonlinearities inside a continuous-wave-pumped optical parametric oscillator. We demonstrate comb states which produce narrow-linewidth intermode beat note signals, and we verify the mode-spacing uniformity of the comb at the Hertz level. We also show that the spectral quality of the comb can be improved by modulating the parametric gain at a frequency that corresponds to the comb mode spacing. We have reached a high average output power of over 4 W in the near-infrared region, at ~2µm.

AB - We present an experimental study of optical frequency comb generation based on cascaded quadratic nonlinearities inside a continuous-wave-pumped optical parametric oscillator. We demonstrate comb states which produce narrow-linewidth intermode beat note signals, and we verify the mode-spacing uniformity of the comb at the Hertz level. We also show that the spectral quality of the comb can be improved by modulating the parametric gain at a frequency that corresponds to the comb mode spacing. We have reached a high average output power of over 4 W in the near-infrared region, at ~2µm.

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VL - 92

JO - Physical Review A

JF - Physical Review A

SN - 2469-9926

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