Coherent frequency division with a degenerate synchronously pumped optical parametric oscillator

Wan, Chenchen; Ruehl, Axel; Hartl, Ingmar

doi:10.1364/ol.43.001059

Cited by 9 publications

(5 citation statements)

References 21 publications

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“…7b for a singly resonant OPO. This un-equal sharing result is quite different than the degenerate case measured by Wan et al [55], where phase modulation on the pump is shown to be shared equally between the degenerate subharmonic signal and idler combs. The transfer function in Fig.…”

Section: Resultscontrasting

confidence: 92%

Tunable visible frequency combs from a Yb-fiber-laser-pumped optical parametric oscillator

et al. 2019

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We present a 100 MHz repetition rate Ybfiber-laser-pumped synchronously pumped optical parametric oscillator (SPOPO) delivering tunable frequency combs covering almost the entire visible spectral range. By intracavity doubling both the signal and idler combs and using collinear residual pump light, nearly continuous tuning over the range of 420-700 nm is achieved with only small gaps near the OPO degeneracy condition. Output powers range from 10 mW to 200 mW, depending on wavelength, with pulse durations below 150 fs without external compression. Frequency locking of all three collinearly outcoupled combs (pump, doubled signal, and doubled idler) to a femtosecond enhancement cavity facilitates direct comparison of their optical phase noise and phase modulation transfer functions. In the singly-resonant OPO, optical phase modulation of the pump comb is transferred nearly completely to the nonresonant idler comb. This results in a resonant signal comb with reduced optical phase noise and also enables high-bandwidth modulation on the idler comb via phase modulation of the pump.

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Section: Resultscontrasting

confidence: 92%

Tunable visible frequency combs from a Yb-fiber-laser-pumped optical parametric oscillator

et al. 2019

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“…Traditionally, OPO-based OFC is generated through synchronous pumping, in which the circulating OPO signal is periodically amplified by a MLL that is synchronized to the OPO cavity. Synchronously pumped degenerate OPOs (DOPOs) based on periodically poled Lithium niobate (PPLN) [13][14][15] and orientation-patterned gallium arsenide (OP-GaAs) [16,17] have all been successfully implemented as viable MIR OFC sources. In addition, a new operation regime of a near-synchronously pumped DOPO has been observed recently in which temporal simultons are formed through the balance between synchronization timing mismatch and nonlinear pulse acceleration [18].…”

Section: Introductionmentioning

confidence: 99%

Quadratic Solitons in Singly Resonant Degenerate Optical Parametric Oscillators

Nie

Huang

2020

Phys. Rev. Applied

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By identifying the similarities between the coupled-wave equations and the parametrically driven nonlinear Schrödinger equation, we for the first time unveil the existence condition of quadratic solitons in continuouswave pumped singly resonant degenerate optical parametric oscillators (SR-DOPOs). Compared to the previously explored doubly resonant DOPOs, quadratic solitons in SR-DOPOs are advantageous in their robustness against perturbations induced by dispersion of the effective third-order nonlinearity and temporal walk-off between the signal and the pump. Terahertz comb bandwidth and femtosecond pulse duration are attainable in an example periodically poled Lithium niobate waveguide resonator in the short-wave infrared. The working principle can be extended to other material platforms, making it a competitive ultrashort pulse and broadband comb source architecture at the mid-infrared.

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“…Moreover, it is experimentally shown that the CEO frequency noise can be reduced by 6 dB through the half-harmonic generation. [42] In short, this work paves the way to realization of a compelling new source of ultrashort-pulse frequency combs in the midinfrared region which can benefit numerous applications, for example, spectroscopy methods that require high-power, broadband, and short-pulse MIR frequency combs. [40,41] This work sheds new lights on soliton generation based on the quadratic nonlinearity and its potential in the MIR region.…”

Section: Discussionmentioning

confidence: 96%

“…Moreover, it is experimentally shown that the CEO frequency noise can be reduced by 6 dB through the half‐harmonic generation. [ 42 ]…”

Section: Discussionmentioning

confidence: 99%

High‐Power Mid‐IR Few‐Cycle Frequency Comb from Quadratic Solitons in an Optical Parametric Oscillator

Liu

Gray

Roy

et al. 2022

Laser & Photonics Reviews

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Powerful and efficient optical frequency combs in the mid-infrared (MIR) spectral region are highly desirable for a broad range of applications. Despite extensive efforts utilizing various techniques, MIR frequency comb sources are still lacking power, efficiency, or bandwidth for many applications. Here, we report the generation of an intrinsically locked frequency comb source centered at 4.18 µm from an optical parametric oscillator (OPO) operating in the simulton regime, in which formation of purely quadratic solitons lead to enhanced performance. We show advantages of operation in the simulton regime in direct experimental comparisons to the conventional regime, which are also supported by simulation and theory.We achieve 565 mW of average power, 900 nm of instantaneous 3-dB bandwidth, 350% of slope efficiency, and 44% of conversion efficiency; a performance that is superior to previous OPO demonstrations and other sources in this wavelength range. This work opens a new avenue toward MIR frequency comb generation with high power and efficiency and suggests the great potential of soliton generation based on quadratic nonlinearity in the MIR spectral region.

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Coherent frequency division with a degenerate synchronously pumped optical parametric oscillator

Cited by 9 publications

References 21 publications

Tunable visible frequency combs from a Yb-fiber-laser-pumped optical parametric oscillator

Tunable visible frequency combs from a Yb-fiber-laser-pumped optical parametric oscillator

Quadratic Solitons in Singly Resonant Degenerate Optical Parametric Oscillators

High‐Power Mid‐IR Few‐Cycle Frequency Comb from Quadratic Solitons in an Optical Parametric Oscillator

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