Yb-fiber amplifier pumped idler-resonant PPLN optical parametric oscillator producing 90 femtosecond pulses with high beam quality

Xu, Lin; Feehan, James S.; Shen, Li; Peacock, Anna C.; Shepherd, D.P.; Richardson, David J.; Price, J.H.V.

doi:10.1007/s00340-014-5918-7

Cited by 13 publications

(2 citation statements)

References 32 publications

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“…[29] In 2014, an idler-resonant femtosecond MgO:PPLN OPO pumped by Yb-doped fiber amplifier was demonstrated, which generated 600 mW of idler pulses with high beam quality (M 2 − 1.05) at 2.2 µm-2.6 µm. [30] Though the output power and beam quality could both satisfy the needs of applications, the output wavelength could not reach around 1.3 µm. Using green laser as pumping source could easily overcome this problem, however, there are few reports about idler-resonant femtosecond OPOs pumped by green laser.…”

Section: Introductionmentioning

confidence: 99%

A 515-nm laser-pumped idler-resonant femtosecond BiB₃O₆ optical parametric oscillator

Yang¹,

Wang²,

Jia³

et al. 2022

Chinese Phys. B

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We report on an idler-resonant femtosecond optical parametrical oscillator (OPO) based on BiB3O6 (BiBO) crystal, synchronously pumped by a frequency-doubled, mode-locked Yb:KGW laser at 515 nm. The idler wavelengths of OPO can be tuned from 1100 nm to 1540 nm. At a repetition rate of 75.5 MHz, the OPO generates as much as 400 mW of idler power with 3.1 W of pump power, the corresponding pulse duration is 80 fs, which is 1.04 times of Fourier transform-limited (FTL) pulse duration at 1305 nm. In addition, the OPO exhibits excellent beam quality with M 2 < 1.8 at 1150 nm. To the best of our knowledge, this is the first idler-resonant femtosecond OPO pumped by 515 nm.

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Section: Introductionmentioning

confidence: 99%

A 515-nm laser-pumped idler-resonant femtosecond BiB₃O₆ optical parametric oscillator

Yang¹,

Wang²,

Jia³

et al. 2022

Chinese Phys. B

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“…We launched ~ 90 fs linearly polarized pulses (time-bandwidth product ~0.46), from an in-house built optical parametric oscillator (OPO), similar to that reported in Ref. [24], using a halfwave-plate to couple into the TE mode that produced the broadest spectrum in a 15-cm long fiber. The OPO output wavelength was 1500 nm with pulses at a repetition rate of 80 MHz and average power of up to 400 mW.…”

mentioning

confidence: 99%

Mid-infrared supercontinuum generation in suspended core tellurite microstructured optical fibers

Belal

Horák

et al. 2015

Opt. Lett.

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We report the fabrication of a tellurite optical fiber with a suspended core design, formed on a 220 nm wide filament of glass. The fiber was pumped at two different wavelengths (1500 nm and 2400 nm) using femtosecond pulses generated from an optical parametric oscillator (OPO) in order to produce mid-infrared supercontinuum (SC). We observed that SC spectra extending to 3 µm were readily generated. To further optimize the design detailed numerical study was performed which revealed how the fiber structural characteristics dramatically influence the spectral broadening because of the changes in the dispersion profile and in turn, the interplay of nonlinear effects that give rise to SC generation. We found that an accurate control of the core shape can be employed to contain the generated SC spectra within well-defined spectral regions or to provide a broad extension of the continuum to beyond 4 µm.Fiber-based supercontinuum (SC) sources have an attractive combination of high brightness and broad bandwidth, which makes them ideal sources for spectroscopy [1] and if the coherence is high, then also for metrology [2]. Supercontinuum generation (SCG) across the mid-infrared (mid-IR) has enabled the molecular fingerprinting of organic compounds leading to a host of cross-disciplinary applications in the fields of sensing [3], cosmetic product inspection [4], protein structure derivation [5] and detection of biological species [6,7]. To extend the wavelength range beyond the transparency window of silica, mid-IR SCG has often been based on soft glasses [8] such as chalcogenide [9], tellurite (Te) [10,11], lead silicate [12] and fluoride [13]. Microstructuring has been used to engineer the zero-dispersion wavelength (ZDW), which is typically in the mid-IR for soft-glasses, to match the wavelength of widely available near-IR pulsed lasers. However, because of the narrow temperature range of the glass transition in soft glasses, the fibers are challenging to fabricate when compared to the now established procedures used to fabricate silica microstructured fibers. For this reason, as well as for the rather low mechanical robustness of these glasses, the innovation in Te and chalcogenide fiber designs has been quite limited as compared to silica fibers [14][15][16]. In this paper, we present experimental and modelling results showing SCG in a novel Te fiber with an elongated core on a thin filament of glass as shown by the scanning electron microscope (SEM) image in Fig. 1. The preform was fabricated using the extrusion method [17,18] and was then drawn into the final fiber using a conventional fiber drawing tower. The fiber has high birefringence for compatibility with planar waveguides, and the shape of the fiber core is controlled both by the shape of the extrusion die and by surface tension effects during fiber drawing. Hence, there is more design freedom than in socalled wagon-wheel fibers [10,19] where surface tension effects between the core and multiple supporting filaments govern the core shape. Alongside the expe...

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Mg₃B₇O₁₃Cl: A New Quasi‐Phase Matching Crystal in the Deep‐Ultraviolet Region

Wang

Qiao

et al. 2018

Adv Funct Materials

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Deep-ultraviolet lasers play an important role in many scientific and technical fields, the generation of which by means of the nonlinear optical frequency conversion technology attracted immense research interest over the past few decades. Up to now, there are few nonlinear optical crystals, except KBe 2 BO 3 F 2 , which could produce deep-ultraviolet coherent light by a harmonic generation process. However, industrialization of KBe 2 BO 3 F 2 is hampered by its layering growth habit and weak interlayer force. Here, a new deep-ultraviolet nonlinear optical crystal, Mg 3 B 7 O 13 Cl, is found, which will be a good candidate for deep-ultraviolet coherent generation. It crystallizes an acentric space group of Pca2 1 at room temperature with both 3D borate frameworks and distorted octahedrons, which makes it a unity of optical nonlinearity and ferroelectricity. Furthermore, a short absorption cutoff of 155 nm, a second harmonic generation coefficient of 0.38 pm V −1 , a coercive field of 21.2 kV cm −1 , and a remanent polarization of 0.36 µC cm −2 for Mg 3 B 7 O 13 Cl crystal are identified. These features indicate that Mg 3 B 7 O 13 Cl crystal can generate deep-ultraviolet coherent light by a quasi-phase matching technique with a periodically poling method. This pioneering and profound work points out a new research area in the development of deep-ultraviolet lasers.

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Yb-fiber amplifier pumped idler-resonant PPLN optical parametric oscillator producing 90 femtosecond pulses with high beam quality

Cited by 13 publications

References 32 publications

A 515-nm laser-pumped idler-resonant femtosecond BiB₃O₆ optical parametric oscillator

A 515-nm laser-pumped idler-resonant femtosecond BiB₃O₆ optical parametric oscillator

Mid-infrared supercontinuum generation in suspended core tellurite microstructured optical fibers

Mg₃B₇O₁₃Cl: A New Quasi‐Phase Matching Crystal in the Deep‐Ultraviolet Region

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Yb-fiber amplifier pumped idler-resonant PPLN optical parametric oscillator producing 90 femtosecond pulses with high beam quality

Cited by 13 publications

References 32 publications

A 515-nm laser-pumped idler-resonant femtosecond BiB3O6 optical parametric oscillator

A 515-nm laser-pumped idler-resonant femtosecond BiB3O6 optical parametric oscillator

Mid-infrared supercontinuum generation in suspended core tellurite microstructured optical fibers

Mg3B7O13Cl: A New Quasi‐Phase Matching Crystal in the Deep‐Ultraviolet Region

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Product

Resources

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A 515-nm laser-pumped idler-resonant femtosecond BiB₃O₆ optical parametric oscillator

A 515-nm laser-pumped idler-resonant femtosecond BiB₃O₆ optical parametric oscillator

Mg₃B₇O₁₃Cl: A New Quasi‐Phase Matching Crystal in the Deep‐Ultraviolet Region