Graphene mode-locked Cr:ZnS laser with 41 fs pulse duration

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

doi:10.1364/oe.22.005564

Cited by 99 publications

(59 citation statements)

References 10 publications

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“…The laser thus emitted two beams, namely Out1 and Out2, and the measured output power is a sum of both beams. The commercially ordered CVD-grown graphene saturable absorber (Graphene supermarket ® ) has been deposited on the surface of broadband dielectric high-reflector mirror to form the graphene-based saturable absorber mirror, with single-, double-, and triple-layer structures deposited on the same mirror [3]. There have been few reports on similar absorber design [14,15].…”

Section: Methodsmentioning

confidence: 99%

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Graphene Mode-locked Cr:ZnS Chirped-pulse Oscillator

Tolstik

Sorokina

Sorokin

2013

Advanced Solid-State Lasers Congress

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Section: Methodsmentioning

confidence: 99%

“…Successful implementations range from 800 [1] to 2500 nm [2] on the wavelength scale. Pulses with durations down to 41 fs [3] have been obtained.…”

Section: Introductionmentioning

confidence: 99%

Graphene Mode-locked Cr:ZnS Chirped-pulse Oscillator

Tolstik

Sorokina

Sorokin

2013

Advanced Solid-State Lasers Congress

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“…The X-folded laser cavity with a round-trip length of about 3.3 m was astigmatically compensated by proper choice of the folding angles introduced by the highly reflective (HR) mirrors. Mode-locking was initiated and supported by a graphene-based saturable absorber (SA) mirror (multilayer graphene transferred to a surface of a dielectric high-reflector mirror, modulation depth of about 3%, details can be found in [13]). The cavity mode was additionally focused on to the graphene SR by ROC = 200 mm concave mirror to form a waist of about 80-μm radius.…”

Section: Experimental Configurationmentioning

confidence: 99%

“…To extend the spectral broadening further into the mid-IR wavelength range, in the work reported here we have developed a laser based on Cr:ZnS. Indeed, chromium-doped chalcogenide (Cr:ZnS/Cr:ZnSe) based lasers, often called the "Ti-sapphires of the infrared" due to their very broad absorption and emission bands, have recently matured to provide femtosecond performance in all respects comparable with Ti:sapphire lasers [12][13][14]. As such, they represent ideal compact and stable sources for generation of high quality coherent octavespanning supercontinua in the mid-IR.…”

Section: Introductionmentioning

confidence: 99%

Coherent octave-spanning mid-infrared supercontinuum generated in As_2S_3-silica double-nanospike waveguide pumped by femtosecond Cr:ZnS laser

Xie¹,

Tolstik²,

Travers³

et al. 2016

Opt. Express

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A more than 1.5 octave-spanning mid-infrared supercontinuum (1.2 to 3.6 μm) is generated by pumping a As 2 S 3 -silica "double-nanospike" waveguide via a femtosecond Cr:ZnS laser at 2.35 μm. The combination of the optimized group velocity dispersion and extremely high nonlinearity provided by the As 2 S 3 -silica hybrid waveguide enables a ~100 pJ level pump pulse energy threshold for octave-spanning spectral broadening at a repetition rate of 90 MHz. Numerical simulations show that the generated supercontinuum is highly coherent over the entire spanning wavelength range. The results are important for realization of a high repetition rate octave-spanning frequency comb in the mid-infrared spectral region. References and links1. A. Schliesser, N. Picqué, and T. W. Hänsch, "Mid-infrared frequency combs," Nat. Photonics 6(7), 440-449 (2012). 2. U. Keller, "Recent developments in compact ultrafast lasers," Nature 424(6950), 831-838 (2003). 3. P. Maddaloni, P. Malara, G. Gagliardi, and P. D. Natale, "Mid-infrared fibre-based optical comb," New J. Phys. Fermann, L. Wondraczek, and P. St. J. Russell, "Mid-Infrared supercontinuum generation in As 2 S 3 -silica "nanospike" step-index waveguide," Opt.

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“…Graphene could behave as a fast saturable absorber over a wide spectral range for the mode locking of fiber lasers. Since 2009, a wide variety of laser configurations and operational wavelengths [7][8][9][10][11] is based on graphene mode-locked lasers. Graphene has been suggested as a material that might have large χ (3) nonlinearities, which is also due to its linear band structure allowing interband optical transitions at all photon energies.…”

Section: Introductionmentioning

confidence: 99%

Graphene-Enhanced Optical Signal Processing

Wang¹,

Hu²

2017

Graphene Materials - Advanced Applications

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Graphene has emerged as an attractive material for a myriad of optoelectronic applications due to its variety of remarkable optical, electronic, thermal and mechanical properties. So far, the main focus has been on graphene based photonics and optoelectronics devices. Due to the linear band structure allowing interband optical transitions at all photon energies, graphene has remarkably large third-order optical susceptibility χ (3) , which is only weakly dependent on the wavelength in the near-infrared frequency range. Graphene possesses the properties of the enhancement four-wave mixing (FWM) of conversion efficiency. So, we believe that the potential applications of graphene also lies in nonlinear optical signal processing, where the combination of its unique large χ (3) nonlinearities and dispersionless over the wavelength can be fully exploited. In this chapter, we give a brief overview of our recent progress in graphene-assisted nonlinear optical device which is graphene-coated optical fiber and graphene-silicon microring resonator and their applications, including degenerate FWM based tunable wavelength conversion of quadrature phase-shift keying (QPSK) signal, two-input optical computing, three-input high-base optical computing, graphene-silicon microring resonator enhanced nonlinear optical device for on-chip optical signal processing, and nonlinearity enhanced graphenesilicon microring for selective conversion of flexible grid multi-channel multi-level signal.

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Graphene mode-locked Cr:ZnS laser with 41 fs pulse duration

Cited by 99 publications

References 10 publications

Graphene Mode-locked Cr:ZnS Chirped-pulse Oscillator

Graphene Mode-locked Cr:ZnS Chirped-pulse Oscillator

Coherent octave-spanning mid-infrared supercontinuum generated in As_2S_3-silica double-nanospike waveguide pumped by femtosecond Cr:ZnS laser

Graphene-Enhanced Optical Signal Processing

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