We demonstrate a free-running single-cavity dual-comb optical parametric oscillator (OPO) pumped by solid-state laser. The OPO ring cavity contains single periodically-poled MgO-doped LiNbO3 (PPLN) crystal. Each idler beam has more than 245-mW average power at 3550 nm and 3579 center wavelengths (bandwidth 130 nm). signal beams are simultaneously outcoupled with 220 mW per 1499 1496 wavelength. nominal repetition rate is 80 MHz, while the difference tunable set to 34 Hz. To evaluate...

Transformative research requires transdisciplinary collaboration, forcing researchers out of their disciplinary comfort zones. In projects, the role (social) scientists changes, and non-scientific actors become part projects. Transdisciplinary is particularly suited to not only generate scientific knowledge, but also invent real-world solutions innovative. This, however, does come without challenges. Implementing a project time-consuming alignment both impact ambitions all partners. this...

Dual-comb spectroscopy (DCS) enables high-resolution measurements at high speeds without the trade-off between resolution and update rate inherent to mechanical delay scanning. However, complexity limited sensitivity remain significant challenges for DCS systems. We address these via a wavelength-tunable dual-comb optical parametric oscillator (OPO) combined with an up-conversion detection method. The OPO is tunable from 1300-1670 nm (signal) 2700-5000 (idler). Spatial multiplexing in both...

Silicoaluminophosphates of the framework types CHA (SAPO‐34) and AFI (SAPO‐5) are deposited onto surface open‐celled ceramic SiC foam monoliths by direct crystallization. Therefore, a conventional hydrothermal synthesis is carried out in presence with pore densities 10 30 PPI, respectively. Moreover, crystallization time varied to determine its effect on coating produced. In all cases, respective SAPO material successful. Irrespective pores density variation (SAPO‐5: 20 h/30 h, SAPO‐34:30...

We present a high power optical parametric oscillator (OPO) synchronously pumped by the second-harmonic of modelocked 1030-nm thin-disk laser (TDL) oscillator. The OPO delivers an average 51.1 W around degeneracy (1030 nm) with 10.2-MHz repetition-rate. After extra-cavity dispersion compensation using dispersive mirrors, we obtain pulse duration 169 fs, which is 4.6× shorter than TDL 770 fs. has 250 power, converted to 215 at second-harmonic. Hence, exhibits photon conversion efficiency 47%...

We present a free-running 80-MHz dual-comb polarization-multiplexed solid-state laser which delivers 1.8 W of average power with 110-fs pulse duration per comb. With high-sensitivity pump-probe setup, we apply this to picosecond ultrasonic measurements. The signatures in semiconductor multi-quantum-well structure originating from the quantum wells and superlattice regions are revealed discussed. further demonstrate measurements on thin-film metalized sample compare these ones obtained pair...

Coherent dual-comb spectroscopy (DCS) enables high-resolution measurements at high speeds without the trade-off between resolution and update rate inherent to mechanical delay scanning approaches. However, system complexity limited measurement sensitivity remain major challenges for DCS. Here, we address these via a wavelength-tunable optical parametric oscillator (OPO) combined with an up-conversion detection method. The OPO is tunable in short-wave infrared (1300-1670 nm range)...

Combining a pair of modelocked lasers to obtain dual optical frequency comb enables many applications such as high-resolution spectroscopy [1]. However, implementing this technology can be difficult, it requires two highly coherent combs. Here we report new dual-comb laser based on spatial multiplexing [2], which delivers pulse trains directly from single cavity with ultra-low relative noise properties.

We present a novel detection scheme for high-sensitivity spectroscopy in the mid-infrared. use low-noise and low-complexity dual-comb source based on PPLN OPO an Yb:YAG pump. Both laser are spatially-multiplexed single-cavity sources. At repetition rate of 250 MHz ps-long pump pulses, high power per comb line >120 W is achieved at 3000 nm (idler). The idler tunable from 2700 to 5170 nm. system enables comb-line-resolved measurements free-running operation. With our scheme, we achieve...

We demonstrate high-resolution spectroscopy by using a tunable 250-MHz OPO cavity as transceiver for mid-infrared cross-comb spectroscopy. In 2-s-long coherently-averaged measurement at 3.1µm we obtain high spectral signal-to-noise ratio of 42 dB.

Light pulses in the femtosecond range require sophisticated methods for their precise temporal characterization. Several techniques have been developed over past decades that deliver structure of ultrashort light pulses. Still, there are special cases left cannot be treated directly by established methods. Here we expand applicability existing tools to case non-collinear propagation a pair identical with an unknown, but fixed spacing. By applying successful dispersion scan (d-scan) technique...

We present a free-running 80-MHz polarization-multiplexed solid-state dual-comb laser which delivers 1.8 Watts of average power with 110-fs pulse duration per comb. apply this to picosecond ultrasonic measurements via high-sensitivity pump-probe setup. demonstrate on thin-film samples, and compare our ones obtained pair locked femtosecond lasers x-ray diffraction measurements. Our data show that is well-suited for thus it offers significant reduction in complexity cost widely adopted...

We present a new approach for dual-comb optical parametric oscillators. The system uses single-cavity laser that pumps single OPO cavity. pump has 1.7 W average power per comb at 1054 nm with 80-MHz repetition rate. ring cavity is pumped in opposite directions by the two pumps. idler beams have >280 mW 3500 145-nm bandwidth. characterize signal noise and find shot-noise-limited performance (RIN below -155 dBc/Hz >1 MHz frequencies). Our represents low-noise solution to spectroscopy across...

We present a low-noise and high power per comb line dual-comb source based on PPLN OPO an Yb:YAG pump. Both the laser are spatially-multiplexed single-cavity sources. The system operates at repetition rate of 250 MHz, relatively long pump pulse duration around 900 fs leads to >60 μW in idler 3500 nm. is tunable from 2900 nm 4170 runs over 15 kHz difference, enabling comb-line-resolved spectroscopy measurements free-running operation.

Single-cavity dual-comb lasers are emerging as new light sources benefiting many applications. Here we demonstrate two operation regimes for these lasers: a 250-MHz repetition rate 1-ps pulse duration laser, and 1-GHz 80-fs laser. Each source delivers more than 2 W of average power per comb. Compared to our earlier 80-MHz laser which was limited 500 Hz, both can achieve up 25 kHz difference without aliasing. We study the suitability comb line resolved measurements show excellent coherence...

Dual optical frequency combs, consisting of a pair modelocked lasers with slight difference in their pulse repetition rate, are valuable tools for high-resolution infrared spectroscopy. Heterodyne mixing the two combs down-converts comb lines to radio domain, allowing straightforward comb-line-resolved measurements single photodiode [1]. Practical deployment this technology faces significant challenges, including complexity light source due need highly coherent accessing broad wavelength...

We demonstrate coherent dual-comb spectroscopy of acetylene at 3070 nm using a spatially-multiplexed 250-MHz OPO from linear single-cavity. The idler is broadly tunable (2900-5170 nm) high powers per comb line (>120 μW).

We demonstrate a high-contrast spatially-multiplexed dual-comb 250-MHz OPO from linear single-cavity ideally suited for high-sensitivity spectroscopy measurements. The achieved contrast lies at 7.0×10 -5 .

We demonstrate a dual-comb 80-MHz optical parametric oscillator from single-cavity and diode-pumped 250-MHz Yb:YAG oscillator. Their combination can lead to low-noise source in the mid-IR with high-power per comb line.

We demonstrate a spatially-multiplexed dual-comb 250-MHz OPO from single linear cavity. The adjustable repetition-rate difference is 4.1 kHz. Each idler comb has >200-mW average power at 3.5 μm with 30 nm bandwidth. wavelength-tunable 1.36 to 1.7 and 2.9 4.17 μm. © 2022 Author(s)

We demonstrate coherent dual-comb spectroscopy of C2H2 at 1520 nm using a spatially- multiplexed 250-MHz OPO from linear single-cavity. The repetition-rate difference is 15.4 kHz. Each signal comb has >125-mW average power.

We demonstrate a diode-pumped Yb:CaF 2 dual-comb oscillator at 80-MHz repetition rate. The common-path polarization-multiplexed cavity delivers >2.1 W of output power in each comb with 100-fs pulse duration exceeding 230-kW peak power.

Dual-comb laser sources offer significant performance advantages compared to traditional in various optical sensing applications, such as high-resolution spectroscopy, rapid pump-probe measurements and ranging [1] . generation from a single cavity is particularly relevant for advancing practical dualcomb applications due reduced complexity cost. By using birefringent polarization multiplexing of the we have demonstrated dual-comb modelocking diode-pumped semiconductor disk solid-state lasers...

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