Dual-comb thin-disk oscillator

Fritsch, Kilian; Brons, Jonathan; Iandulskii, Maksim; Mak, Ka Fai; Chen, Zaijun; Picqué, N.; Pronin, Oleg

doi:10.48550/arxiv.2004.10303

Cited by 1 publication

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Very recently, a new scheme for dual-comb generation has been implemented in ytterbium thin-disk lasers emitting at ∼1.03 μm. The concept exploited spatial separation of two beams enabled by non-common cavity end mirrors [25,26] and/or polarizationsplitting [27]. The unprecedented output power levels of several watts achieved for pulse durations on the order of 300 fs promise effective nonlinear frequency conversion of the dual-comb structure towards the mid-IR or UV domains.…”

Section: Introductionmentioning

confidence: 99%

Dual‐Comb Femtosecond Solid‐State Laser with Inherent Polarization‐Multiplexing

Kowalczyk

Sterczewski

Zhang

et al. 2021

Laser & Photonics Reviews

View full text Add to dashboard Cite

Dual‐comb spectroscopy is a rapidly developing technique enabling ultraprecise broadband optical diagnostics of atoms and molecules. This powerful tool typically requires two phase‐locked femtosecond lasers, yet it has been shown that it can be realized without any stabilization if the combs are generated from a single laser cavity. Still, unavoidable intrinsic relative phase fluctuations always set a limit on the precision of any spectroscopic measurements, hitherto limiting the applicability of bulk dual‐comb lasers for mode‐resolved studies. Here, a versatile concept for low‐noise dual‐comb generation from a single‐cavity femtosecond solid‐state laser based on intrinsic polarization‐multiplexing inside an optically anisotropic gain crystal is demonstrated. Due to intracavity spatial separation of the orthogonally polarized beams, two sub‐100 fs pulse trains are simultaneously generated from a 1.05 µm Yb:CNGS (calcium niobium gallium silicate) oscillator with a repetition rate difference of 4.7 kHz. The laser exhibits the lowest relative noise ever demonstrated for a bulk dual‐comb source, supporting free‐running mode‐resolved spectroscopic measurements over a second. Moreover, the developed dual‐comb generation technique can be applied to any solid‐state laser exploiting a birefringent active crystal, paving the way toward a new class of highly coherent, single‐cavity, dual‐comb laser sources operating in various spectral regions.

show abstract

Section: Introductionmentioning

confidence: 99%