Composite frequency comb spanning 04-24μm from a phase-controlled femtosecond Ti:sapphire laser and synchronously pumped optical parametric oscillator

Sun, Jinghua; Gale, B.J.S.; Reid, Derryck T.

doi:10.1364/ol.32.001414

Cited by 88 publications

(48 citation statements)

References 20 publications

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“…This ability to rapidly cover thousands of cm −1 with high sensitivity and high resolution will be a powerful new tool for the study of ions and radicals for many applications. In addition, applications to other many other spectral regions are possible by using different comb sources combined with non-linear optics for covering the near-IR [65,66] or mid-IR [67,68,69,70,71]. These sources plus readout systems using different cameras or optical up-conversion [72] create the possibility of ion spectroscopy anywhere from the visible to the mid-IR.…”

Section: Outlook and Conclusionmentioning

confidence: 99%

Broadband velocity modulation spectroscopy of HfF+: Towards a measurement of the electron electric dipole moment

Cossel

Gresh

Sinclair

et al. 2012

Chemical Physics Letters

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Precision spectroscopy of trapped HfF + will be used in a search for the permanent electric dipole moment of the electron (eEDM). While this dipole moment has yet to be observed, various extensions to the standard model of particle physics (such as supersymmetry) predict values that are close to the current limit. We present extensive survey spectroscopy of 19 bands covering nearly 5000 cm −1 using both frequency-comb and single-frequency laser velocity-modulation spectroscopy. We obtain high-precision rovibrational constants for eight electronic states including those that will be necessary for state preparation and readout in an actual eEDM experiment.

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Section: Outlook and Conclusionmentioning

confidence: 99%

Broadband velocity modulation spectroscopy of HfF+: Towards a measurement of the electron electric dipole moment

Cossel

Gresh

Sinclair

et al. 2012

Chemical Physics Letters

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“…Full stabilization of the singly-resonant SP-OPO is complicated and requires additional frequency conversion steps and/or stable reference lasers. [5,13,15] Doubly-resonant SP-OPO tuned to degeneracy provides a simpler approach, and allows for generation of a broad instantaneous spectrum with modest pump power. As an example, a frequency comb spanning from 2.6 to 7.5 μm at −20 dB level has been demonstrated.…”

Section: Introductionmentioning

confidence: 99%

Fully stabilized mid-infrared frequency comb for high-precision molecular spectroscopy

Vainio

Karhu

2017

Opt. Express

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Abstract:A fully stabilized mid-infrared optical frequency comb spanning from 2.9 to 3.4 µm is described. The comb is based on half-harmonic generation in a femtosecond optical parametric oscillator, which transfers the high phase coherence of a fully stabilized nearinfrared Er-doped fiber laser comb to the mid-infrared region. The method is simple, as no phase-locked loops or reference lasers are needed. Precise locking of optical frequencies of the mid-infrared comb to the pump comb is experimentally verified at sub-20 mHz level, which corresponds to a fractional statistical uncertainty of 2×10 -16 at the center frequency of the midinfrared comb. The fully stabilized mid-infrared comb is an ideal tool for high-precision molecular spectroscopy, as well as for optical frequency metrology in the mid-infrared region, which is difficult to access with other stabilized frequency comb techniques.

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“…Applications such as molecular spectroscopy [21,22] would greatly benefit from a technology that allows for more straightforward and efficient generation of mid-IR frequency combs than existing solutions based on nonlinear transfer of near-IR OFCs [23][24][25][26][27][28][29][30][31][32][33]. Indeed, direct generation of frequency combs in the mid-IR region is hindered by the lack of available mode-locked lasers and nonlinear fibres.…”

Section: Introductionmentioning

confidence: 99%

Frequency comb generation in continuously pumped optical parametric oscillator

Mosca

Parisi

Ricciardi

et al. 2017

Frontiers in Optics 2017

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Continuously pumped passive nonlinear cavities can be harnessed for the creation of novel optical frequency combs. While most research activities have focused on third-order 'Kerr' nonlinear interactions, recent studies have shown that frequency comb formation can also occur via secondorder nonlinear effects. Here, we extend the study of such quadratic combs to optical parametric oscillator (OPO) configurations, demonstrating that optical frequency combs can be generated in a continuously pumped OPO, in the parametric region around half of the pump frequency. We also numerically model the comb formation dynamics using a single time-domain mean field equation, and obtain simulation results that are in good agreement with experimentally observed spectra. Moreover, the analysis of the coherence properties of the simulated spectra shows the existence of correlated and phase-locked combs. Our work paves the way for a new class of frequency comb sources that could enable straightforward access to new spectral regions, such as the mid-infrared, and stimulate novel applications of frequency combs.

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Composite frequency comb spanning 04-24μm from a phase-controlled femtosecond Ti:sapphire laser and synchronously pumped optical parametric oscillator

Cited by 88 publications

References 20 publications

Broadband velocity modulation spectroscopy of HfF+: Towards a measurement of the electron electric dipole moment

Broadband velocity modulation spectroscopy of HfF+: Towards a measurement of the electron electric dipole moment

Fully stabilized mid-infrared frequency comb for high-precision molecular spectroscopy

Frequency comb generation in continuously pumped optical parametric oscillator

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