Graphene Mode-locked Cr:ZnS Chirped-pulse Oscillator

Tolstik, Nikolai; Sorokina, Irina T.; Sorokin, Evgeni

doi:10.1364/mics.2013.mw1c.2

Cited by 4 publications

(2 citation statements)

References 10 publications

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“…This method has been realized in a number of laser systems, both solid-state and fiber, including Cr:ZnSe and Cr:ZnS laser [66], [83]. Recent realization of the Cr:ZnS CPO mode-locked by graphene-based saturable absorber mirror allowed to expand the cavity and obtain pulse energy as high as 15.5 nJ directly from the oscillator [84]. This system is the first reported graphene-mode-locked CPO.…”

Section: B Pulse Energymentioning

confidence: 98%

Mid-IR Ultrashort Pulsed Fiber-Based Lasers

Sorokina

Dvoyrin

Tolstik

et al. 2014

IEEE J. Select. Topics Quantum Electron.

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We review the latest breakthroughs in ultrafast fiber laser technology in the mid-IR wavelength range ≥2 μm. In particular, we concentrate on two novel laser systems built around passively mode-locked Tm:fiber lasers and fiber-based Cr:ZnS lasers, generating sub-100 femtosecond pulses and frequency combs with several Watt average output powers, hundreds of kilowatts peak powers and tens of nanojoule pulse energies. The tunability in the broad wavelength range between 2 and 2.5 μm as well as a simple all-silica-fiber design makes the Tm-fiber laser a truly unique broadband light source, particularly relevant for applications in gas sensing, fine material processing of semiconductors, composite materials, glasses and plastics, as well as for brain surgery, breath analysis, remote sensing and stand-off trace gas detection, especially in oil and gas industry. We also review techniques for coherent supercontinuum generation in the mid-IR, including a novel technique of direct generation of the supercontinuum in the fiber. A competing Watt level few-optical cycle Cr:ZnS laser operating at 2.4 μm (Patent pending, ATLA Lasers, Trondheim, Norway) is distinguished by extremely short pulse duration of only 41 fs, reliability and compactness. This unique ultrashort-pulsed laser generates intrinsically coherent frequency combs, which further extends the application range to high-resolution and high-sensitivity spectroscopy and optical clocks.

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Section: B Pulse Energymentioning

confidence: 98%

Mid-IR Ultrashort Pulsed Fiber-Based Lasers

Sorokina

Dvoyrin

Tolstik

et al. 2014

IEEE J. Select. Topics Quantum Electron.

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“…Femtosecond Cr:ZnS lasers made a great progress in the last few years. The realization of different mode-locking mechanisms, such as SESAM [1,2], Kerr-lens [3,4], and, recently, graphene [5,6] and carbon nanotubes [7] resulted in a wide range of the implementations and output parameters, reaching 44 fs pulse duration [5] and 1W average output power [6]. These remarkable results have been mostly achieved using the monocrystalline Cr:ZnS, which is not easy to produce.…”

Section: Introductionmentioning

confidence: 99%

Ceramic Cr:ZnS Laser Mode-Locked by Graphene

2014

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Femtosecond Cr²⁺-Based Lasers

Sorokina

Sorokin

2015

IEEE J. Select. Topics Quantum Electron.

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112

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We review a novel class of femtosecond Cr 2+ -doped ZnSe and ZnS lasers, which operates in a very important for applications wavelength range between 2 and 3.5 μm and which generates ultrashort optical pulses that are only five optical cycles in duration. Room-temperature Cr 2+ -lasers provide tens of Watts average power, >70% slope efficiency, ultrabroad tunability (∼1400 nm between 2 and 3.4 μm) in the continuous wave regime and GW-level peak powers in the amplified femtosecond regime. Different mode-locking techniques from Kerr-lens to graphene saturable absorbers have been demonstrated, and dispersion compensation methods from bulk materials to chirped mirrors allowed the realization of self-starting few-optical cycle oscillators and the demonstration of a number of applications in spectroscopy and nonlinear optics. The Watt level few-optical cycle Cr:ZnS oscillator 1 operating at 2.4 μm is distinguished by extremely short pulse duration of only 41 fs, hundreds of kilowatt peak powers, and tens of nanojoule pulse energies. Using the direct diode-pumping or fiber laser pump sources such a laser can be made reliable and compact, which paves the way to industrial realisation and applications in environmental analysis, oil and gas sensing, hazardous gas detection, breath analysis, fine material processing of semiconductors, composite materials, and glasses.

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Graphene Mode-locked Cr:ZnS Chirped-pulse Oscillator

Cited by 4 publications

References 10 publications

Mid-IR Ultrashort Pulsed Fiber-Based Lasers

Mid-IR Ultrashort Pulsed Fiber-Based Lasers

Ceramic Cr:ZnS Laser Mode-Locked by Graphene

Femtosecond Cr²⁺-Based Lasers

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Graphene Mode-locked Cr:ZnS Chirped-pulse Oscillator

Cited by 4 publications

References 10 publications

Mid-IR Ultrashort Pulsed Fiber-Based Lasers

Mid-IR Ultrashort Pulsed Fiber-Based Lasers

Ceramic Cr:ZnS Laser Mode-Locked by Graphene

Femtosecond Cr2+-Based Lasers

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Product

Resources

About

Femtosecond Cr²⁺-Based Lasers