High-power widely tunable ps source in the visible light based on four wave mixing in optimized photonic crystal fibers

Delagnes, Jean-Christophe; Royon, Romain; Lhermite, Jérôme; Santarelli, Giorgio; Muñoz, Hector E.; Grósz, Tímea; Darwich, Dia; Dauliat, Romain; Jamier, Raphaël; Roy, Philippe; Cormier, Éric

doi:10.1364/oe.26.011265

Cited by 11 publications

(6 citation statements)

References 26 publications

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“…It is more complex than the continuum generation in fiber [28,29] but yields a higher peak power at the given wavelengths. It also compared well with four waves mixing in the fiber, which has been shown to provide femtosecond pulses that are tunable on a smaller spectral range [30,31,32]. This system may offer some advantages if the user can reliably control the laser PRR.…”

Section: Discussionmentioning

confidence: 94%

Femtosecond OPO pumped by a high power ytterbium rod-type fiber laser mode locked at harmonic repetition rates

Freysz

2022

Optics & Laser Technology

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We report on an optical parametric oscillator (OPO) pumped by femtosecond pulses delivered by a large-mode-area, ytterbium-doped, rod-type fiber laser. This femtosecond laser that is mode locked at harmonic repetition rates of 108 MHz, 216 MHz, and 324 MHz provides an average output power of more than 4.5 W and tens of nJ per pulse. The repetition rate is changed by adjusting the pulse polarization inside the laser cavity. Remarkably, at all these repetition rates and without any modification to the cavity, the OPO delivers femtosecond signal pulses that are tunable from 1450 nm to 1700 nm, with an average output power higher than 1 W. Increasing the pump power of the rod-type fiber and decreasing the transmission of the OPO output coupler, we were able to run the OPO at 540 MHz.

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Section: Discussionmentioning

confidence: 94%

Femtosecond OPO pumped by a high power ytterbium rod-type fiber laser mode locked at harmonic repetition rates

Freysz

2022

Optics & Laser Technology

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“…We have checked the feasibility of the NLMZ and computed the two arms intensity profiles I 1 (t) and I 2 (t) and temporal phases ϕ 1 (t) and ϕ 2 (t) via nonlinear Schrödinger equation (NLSE) simulations [33,34] (see Appendix B for details), ensuring that large nonlinear phases (∼ π) can be obtained with common microstructured fibers (10 cm long highly nonlinear air/silica photonic crystal fiber, 5 µm mode-field diameter with a nonlinear index n 2 = 3.2•10 −20 m 2 .W −1 ) and kW-class (peak intensity) ASE sources [35].…”

Section: Introductionmentioning

confidence: 99%

Control of nonlinear processes using versatile random photonic sources: Application to the energy deposition in a dielectric material

2022

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We report on the properties of a non-conventional stochastic photonic source. We first describe the principle of nonlinear intensity filtering by using a modified Mach-Zehnder interferometer. The latter alters the characteristics of an input stochastic source based on Bose-Einstein emission. Computed output intensity fluctuations are compared to an analytical model. Adjusting the interferometer parameters, we show theoretically and numerically that the statistical properties of light such as its probability density function can be tailored. Depending on the parameters, the probability density may exhibit large overshoots or smoother fluctuations. We further evaluate the impact of these modified statistics on simple nonlinear processes. Compared to Bose-Einstein emitters, the yield of nonlinear phenomena varies by several orders of magnitude. We finally simulate the nonlinear interaction of such a laser source with a dielectric material (fused silica) within the framework of a more realistic model, including a statistical analysis. It confirms that the deposited energy varies over many decades and can be largely enhanced due to the properties of the presented laser source.

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“…Furthermore, these oscillators have interesting advantages as: good beam quality, high power stability and the capability of reach hundreds of nanometers ensuring a tunable broadband range [7,[12][13][14]. The OPG is based on degenerate four-wave mixing (FWM) in a highly nonlinear fiber, namely photonic crystal fibers (PCF) [15,16]. The non-linear parametric interaction is described by the third-order nonlinearity χ 3 and owing to this nonlinearity, two new waves named signal and idler photons are generated from two pump photons during the optical frequency conversion process in the fiber [17].…”

Section: Introductionmentioning

confidence: 99%

Broadband Continuously Tunable All-Fiber Laser Based on OPG for CARS Imaging

Aporta

Quintela

López‐Higuera

2021

J. Lightwave Technol.

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A broadband continuously tunable SESAM all-fiber laser based on optical parametric generation (OPG) for Coherent anti-Stokes Raman Scattering (CARS) imaging applications is presented in this article. This laser structure is built on allpolarization maintaining fibers yielding high environmental stability. The OPG is based on PM photonic crystal fiber as parametric gain pumped by a wavelength-tunable (1025 nm to 1055 nm) and repetition rate-tunable (3 MHz to 500 KHz) Ybdoped pulsed fiber laser. The all-fiber structure features free polarization adjustment in slow-axis tunable operation with a wavelength range from 770 to 940 nm for signal radiation and 1225 to 1510 nm for idler radiation. The pump and signal pulses (CARS-Stokes and CARS-pump respectively) are intrinsically overlapped, both spatially and temporarily, due to the four-wave mixing (FWM) generation and emitted from a single fiber end. The CARS-Stokes and CARS-pump pulse duration vary between 25 to 32 ps and 21 to 24 ps respectively in the whole band, ensuring a good overlap of the generated signals, and both exhibit a Gaussian profile with high spatial beam quality. The frequency conversion allows to obtain a frequency difference between the generated signals from 1100 to 3300− . The reported low-cost laser source is ideal for bio-imaging applications, especially in CARS imaging, due to its compactness, simplicity, robustness and ease of handling. A patent has been filed based on this technology.

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High-power widely tunable ps source in the visible light based on four wave mixing in optimized photonic crystal fibers

Cited by 11 publications

References 26 publications

Femtosecond OPO pumped by a high power ytterbium rod-type fiber laser mode locked at harmonic repetition rates

Femtosecond OPO pumped by a high power ytterbium rod-type fiber laser mode locked at harmonic repetition rates

Control of nonlinear processes using versatile random photonic sources: Application to the energy deposition in a dielectric material

Broadband Continuously Tunable All-Fiber Laser Based on OPG for CARS Imaging

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