Mid-IR supercontinuum generation in a ZBLAN fiber pumped by a gain-switched mode-locked Tm-doped fiber laser and amplifier system

Świderski, Jacek; Michalska, Maria; Mazé, G.

doi:10.1364/oe.21.007851

Cited by 94 publications

(48 citation statements)

References 21 publications

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“…This increases the complexity and the cost of the laser significant. A more cost-effective solution would be to generate gain-switched pulses with a moderate pump power and then amplify them in a large mode area fiber amplifier [7,16,17].…”

Section: Discussionmentioning

confidence: 99%

The all-fiber cladding-pumped Yb-doped gain-switched laser

Larsen¹,

Hansen²,

Mattsson³

et al. 2014

Opt. Express

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Abstract:Gain-switching is an alternative pulsing technique of fiber lasers, which is power scalable and has a low complexity. From a linear stability analysis of rate equations the relaxation oscillation period is derived and from it, the pulse duration is defined. Good agreement between the measured pulse duration and the theoretical prediction is found over a wide range of parameters. In particular we investigate the influence of an often present length of passive fiber in the cavity and show that it introduces a finite minimum in the achievable pulse duration. This minimum pulse duration is shown to occur at longer active fibers length with increased passive length of fiber in the cavity. The peak power is observed to depend linearly on the absorbed pump power and be independent of the passive fiber length. Given these conclusions, the pulse energy, duration, and peak power can be estimated with good precision.

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Section: Discussionmentioning

confidence: 99%

The all-fiber cladding-pumped Yb-doped gain-switched laser

Larsen¹,

Hansen²,

Mattsson³

et al. 2014

Opt. Express

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show abstract

“…Pumping at wavelengths longer than the ZDW in the anomalous dispersion region is advantageous for efficient SCG, and 2 µm pumping in particular leads to an optimization of both bandwidth and conversion efficiency [67]. Prior to this work, however, diode-pumped mid-IR SCG sources had to be based on 1550 nm seed-diodes and therefore had to rely on either nonlinear methods or the use of intermediate pulse-pumped TDF laser cavities to convert to longer pumping wavelengths [55,56,68]. Using the MOPA systems presented here, it is now possible to implement the direct picosecond diode-pumping of ZBLAN fibers at 2 µm, which represents a significant improvement in terms of system simplicity, reliability, and stability compared to previous diode-pumped mid-IR sources [69].…”

Section: B Mid-ir Supercontinuum Generationmentioning

confidence: 99%

High Power Diode-Seeded Fiber Amplifiers at 2 μm—From Architectures to Applications

Heidt

Richardson

2014

IEEE J. Select. Topics Quantum Electron.

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Abstract-We review recent advances in the development of high power short-and ultrashort pulsed Thulium-doped fiber amplifier (TDFA) systems seeded by semiconductor laser diodes at wavelengths around 2 µm. The diode-seeding and the master oscillator power amplifier (MOPA) design allow for the construction of extremely versatile laser systems that can operate over wide ranges of peak power, pulse energy and repetition rate in the ultrashort picosecond to the long nanosecond pulsed regimes. We present a record peak power of 130 kW and pulse energy of 5 µJ in picosecond mode, while demonstrating user-defined pulse-shaping capabilities at millijoule pulse energy levels in the nanosecond regime from essentially the same amplifier system. The system architecture as well as important design and power scaling considerations are discussed in detail. Additionally, we highlight recent results in the application of these MOPA systems and their high performance TDFA stages in such diverse application areas as next generation telecommunication networks, mid-infrared supercontinuum generation and mid-infrared gas detection in hollow-core photonic bandgap fibers.

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“…Now silica fibers are widely used for SC generation, but the extending of the SC is limited around the wavelength of 2 μm due to the material losses. Soft-glass fibers with low loss in mid-infrared regime have been considered as ideal candidates for development of broadband MIR SC sources [7][8][9]. Combined with the flexible dispersion characteristics of PCF and the low loss soft-glass, the MIR SC can be generated with appropriate pump sources [10].…”

Section: Introductionmentioning

confidence: 99%

Numerical modelling the ultra-broadband mid-infrared supercontinuum generation in the As2Se3 photonic crystal fiber

Zheng¹,

Wen²,

Zhao³

et al. 2015

Proceedings of the First International Conference on Information Sciences, Machinery, Materials and Energy

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Abstract:In this paper, ultra-broadband mid-infrared (MIR) supercontinuum (SC) generation ranging from 2 to 15 μm in As 2 Se 3 photonic crystal fiber (PCF) was investigated numerically by multipole method and the adaptive split-step Fourier method. By choosing different hole sizes and the pitch parameters of the As 2 Se 3 PCF, the optimized nonlinear coefficients and dispersion profile of the fiber in the mid-infrared regime can be obtained. With the ultrafast pump laser centered around 4.3 μm, the broadband SC from 2 to 15 μm can be generated. In the normal dispersion regime, the flatness of the SC can be improved. Moreover, the pulse durations of the pump laser have positive influence on the spectrum broadening as well as the pump peak power.

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Mid-IR supercontinuum generation in a ZBLAN fiber pumped by a gain-switched mode-locked Tm-doped fiber laser and amplifier system

Cited by 94 publications

References 21 publications

The all-fiber cladding-pumped Yb-doped gain-switched laser

The all-fiber cladding-pumped Yb-doped gain-switched laser

High Power Diode-Seeded Fiber Amplifiers at 2 μm—From Architectures to Applications

Numerical modelling the ultra-broadband mid-infrared supercontinuum generation in the As2Se3 photonic crystal fiber

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