Wavelength tunable picosecond pulse bunch laser around 3 µm through PPMgLN –based DFG with temperature insensitive high power scaling

Yue, Wenjie; Shi, Libing; Chen, Jianmin; Zhang, Yongchang; Wu, Bo; Shen, Yonghang

doi:10.1016/j.rinp.2020.103154

Cited by 3 publications

(3 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Femtosecond pulses, in particular, have been used in a variety of domains, including frequency comb [1], ultrafast/broadband spectroscopy [2], and optoelectronics [3]. However, wavelength-tunable picosecond pulse sources are also critical for linear optical sampling [4], bio-ablation and medical treatment [5,6], and coherent nonlinear optical microscopy [7,8], etc. Moreover, it has been demonstrated that the laser pulses with the picosecond durations are ideal for laser * Author to whom any correspondence should be addressed.…”

Section: Introductionmentioning

confidence: 99%

Wavelength-tunable picosecond laser source based on filtering and amplifying broadband dissipative soliton pulse

Li¹,

Wang²,

Wang³

et al. 2021

Laser Phys.

View full text Add to dashboard Cite

A method for obtaining picosecond pulse sources with continuously tunable central wavelengths is demonstrated numerically and experimentally. A dissipative soliton (DS) mode-locked erbium-doped fiber (EDF) laser based on the nonlinear polarization rotation provides the seed pulse with a flat-top spectral profile and a 55 nm spectral bandwidth. Then it is filtered by a wavelength-tunable super-Gaussian bandpass filter and amplified by two segments of EDFs with different doping concentrations. The output DS pulse from the EDF laser can be compressed from 5.532 ps to 0.291 ps by using a single-mode fiber (SMF-28e), while the pulse energy is about 1.6 nJ. Furthermore, the about 4 ps and 6.84 nJ pulses with continuously tunable central wavelengths ranging from 1535 to 1580 nm can be obtained by amplifying the spectrally filtered pulses. The tunable picosecond pulse source based on the extra-cavity filtering method is very useful for many practical applications because of its flexible wavelength control.

show abstract

Section: Introductionmentioning

confidence: 99%

Wavelength-tunable picosecond laser source based on filtering and amplifying broadband dissipative soliton pulse

Li¹,

Wang²,

Wang³

et al. 2021

Laser Phys.

View full text Add to dashboard Cite

show abstract

“…Other techniques such as high-harmonic-cavity OPO and intra-cavity-pumped OPO could reduce the OPO cavity length for low repetition rate, however, those solutions either require high intense pump pulse or complex cavities [8,9]. Compared to these techniques, burst-mode OPOs, pumped by a burst of pulses with a high intra-burst pulse repetition rate but a low inter-burst pulse repetition rate, allows a short cavity length while simultaneously achieve high peak power and high repetition rate [10][11][12]. Such burst pulsed lasers offer enhanced imaging quality in photoacoustic spectroscopy [13], improved thermal management in tissue ablation process [14] and enabled laser-jamming of heat sinking missiles [15].…”

Section: Introductionmentioning

confidence: 99%

“…Such burst pulsed lasers offer enhanced imaging quality in photoacoustic spectroscopy [13], improved thermal management in tissue ablation process [14] and enabled laser-jamming of heat sinking missiles [15]. Intra-burst pulse repetition rate of 48-MHz mode-locked laser pumped OPO has been demonstrated in [12] and an OPO with a higher intra-burst pulse repetition rate of 1.1 GHz was reported in [10]. However, an external pulse multiplier was employed to increase the pump laser fundamental repetition rate, which caused uneven intra-burst pulse amplitude so that affected the generated MIR pulse energy uniformity and associated pump-to-idler conversion efficiency.…”

Section: Introductionmentioning

confidence: 99%

Compact picosecond mid-IR PPLN OPO with controllable peak powers

Wu¹,

Liang²,

Fu³

et al. 2020

OSA Continuum

View full text Add to dashboard Cite

We report a high-repetition-rate, compact, mid-infrared picosecond (ps) optical parametric oscillator (OPO) based on periodically poled lithium niobate (PPLN). The OPO is synchronously pumped by an ytterbium-doped-fibre (YDF) master-oscillator-power-amplifier (MOPA) system, seeded by a 1040-nm gain-switched laser diode (GSLD). Under continuous-wave (cw) pulsed operation, at a 1.5-GHz repetition rate and 14-W pump power, an idler average power of 2.4 W (∼30 W peak power) was achieved, with an idler wavelength tunability of 2260-3573 nm. Through the addition of an electro-optic modulator (EOM) to the MOPA system, acting as a time gate to suppress a variable number of pulses per 1 µs, a quasi-cw pumping regime was realized, allowing burst-mode operation of the OPO at a 1-MHz inter-burst repetition rate. By varying the burst window time with the EOM, controllable idler peak powers of up to 1.2 kW were then realized.

show abstract

High-pulse-energy ultrafast 3 µm laser generation through OPG/DFG in PPMgLN

Chen,

Zhang,

Shen

2024

Laser Phys. Lett.

View full text Add to dashboard Cite

We report high-pulse-energy ultrafast 3 µm laser generation through optical parametric generation/difference frequency generation (OPG/DFG) in periodically poled magnesium-oxide-doped lithium niobate (PPMgLN). A commercial 1030 nm femtosecond laser is applied as the pump light and a homemade broadband nanosecond pulse laser around 1580 nm is used as the signal light in DFG. The broadband 1580 nm laser has a master oscillator power amplifier (MOPA) structure with a directly modulated superluminescent light-emitting diode (SLED) as the pulse seed and three stages of Er/Yb fiber amplifiers to lift its average power. A portion of the 1030 nm output pulse is converted to an electronic pulse via a pin detector, which is used as the trigger signal of the SLED driving circuit to ensure synchronization between the signal and the 1030 nm pump pulse. When injecting 2.12 W pump light into the PPMgLN, a broadband mid-infrared (MIR) output of 280 mW can be achieved directly through OPG with a center wavelength around 2.94 μm, a pulse width of 1.38 ps and a pulse repetition frequency of 500 kHz. The corresponding MIR pulse energy is 0.56 µJ. When injecting 2.62 W signal light simultaneously, a MIR output of 300 mW is achieved through the DFG process at the same pulse repetition frequency, corresponding to a pulse energy of 0.6 µJ. The conversion efficiency of the ultrafast pump laser to MIR reaches 14.1%. This high-pulse-energy 3 μm ultrafast laser has great prospects for applications in biological tissue ablation.

show abstract

Wavelength tunable picosecond pulse bunch laser around 3 µm through PPMgLN –based DFG with temperature insensitive high power scaling

Cited by 3 publications

References 18 publications

Wavelength-tunable picosecond laser source based on filtering and amplifying broadband dissipative soliton pulse

Wavelength-tunable picosecond laser source based on filtering and amplifying broadband dissipative soliton pulse

Compact picosecond mid-IR PPLN OPO with controllable peak powers

High-pulse-energy ultrafast 3 µm laser generation through OPG/DFG in PPMgLN

Contact Info

Product

Resources

About