2015
DOI: 10.1007/s00340-015-6035-y
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Femtosecond optical parametric oscillators toward real-time dual-comb spectroscopy

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Cited by 51 publications
(31 citation statements)
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“…Moreover, to achieve comb-line resolution and high frequency-accuracy, a tight phase-lock of the two comb sources is required [4]. When the comb line resolution is not needed, the requirement of the tight lock is released and a relatively stable operation of two MIR combs can be achieved, e.g., by seeding one optical parametric oscillator (OPO) cavity with two pump lasers [18] or making two OPOs in one cavity [19]. Recently, MIR comb sources other than mode-locked lasers, such as quantum cascade lasers [20] and electro-optically modulated continuous wave lasers [21], have enabled compact dual-comb spectrometers.…”
mentioning
confidence: 99%
“…Moreover, to achieve comb-line resolution and high frequency-accuracy, a tight phase-lock of the two comb sources is required [4]. When the comb line resolution is not needed, the requirement of the tight lock is released and a relatively stable operation of two MIR combs can be achieved, e.g., by seeding one optical parametric oscillator (OPO) cavity with two pump lasers [18] or making two OPOs in one cavity [19]. Recently, MIR comb sources other than mode-locked lasers, such as quantum cascade lasers [20] and electro-optically modulated continuous wave lasers [21], have enabled compact dual-comb spectrometers.…”
mentioning
confidence: 99%
“…Another possibility is to use a two-crystal SP-OPO, where each crystal is independently pumped with a femtosecond laser [117]. Such SP-OPOs that simultaneously produce two mid-infrared frequency combs are useful for dualcomb spectroscopy [118,119].…”
Section: Synchronously Pumped Parametric Oscillatorsmentioning
confidence: 99%
“…The alternative approach to two independent SROPOs is to merge the two OPO cavities into one [8,9,20,21]. Despite the disadvantage that the Δf rep between the two combs should be small to maintain synchronously pumping operation, this approach offers significant advantage in term of relative stability and coherence between the two idler combs.…”
Section: Introductionmentioning
confidence: 99%
“…Despite the disadvantage that the Δf rep between the two combs should be small to maintain synchronously pumping operation, this approach offers significant advantage in term of relative stability and coherence between the two idler combs. Our previous work yielded a rather fair spectral resolution (0.5 cm −1 ) for a limited averaging time, without stabilization/correction of the f ceo of the idler combs [9,21]. Here, we adopt a passive optical referencing method, similar to what is proposed in [10] and implemented in [22] for near-IR DCS.…”
Section: Introductionmentioning
confidence: 99%