Femtosecond operation and self-doubling of Cr:ZnS laser

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

doi:10.1364/nlo.2011.nthc1

Cited by 9 publications

(9 citation statements)

References 12 publications

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“…The setup is distinguished from the existing similar measurement systems [16], [18] by using new broadband light sources, such as superluminescent Tm-doped fiber based source and a recently developed in our lab mode-locked femtosecond Cr:ZnS oscillator [19], [20]. These sources allow achieving broad spectral coverage with the higher output power and with a high signal/noise ratio.…”

Section: Introductionmentioning

confidence: 99%

Broad-band dispersion measurement of ZBLAN, germanate and silica fibers in mid-IR

Klimentov

Tolstik

Dvoyrin

et al. 2012

J. Lightwave Technol.

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Abstract-We report the first ultra-broad band dispersion measurements in short-length ZBLAN, germanate and silicabased optical fibers in the near-and mid-IR wavelength ranges between 1.7 and 2.0 µm and from 2.3 to 2.45 µm, using two ultrabroadband light sources: a broadband superluminescent Tmdoped fiber source and a novel femtosecond pulsed mode-locked Cr:ZnS oscillator. The measured second order dispersion characteristics of the fibers correspond to the theoretical predictions (numerical calculations).

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Section: Introductionmentioning

confidence: 99%

Broad-band dispersion measurement of ZBLAN, germanate and silica fibers in mid-IR

Klimentov

Tolstik

Dvoyrin

et al. 2012

J. Lightwave Technol.

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“…Nevertheless, subject to a proper orientation, the CW output power of 700 mW at 2.35 m with 700 nm wavelength tuning were demonstrated using Cr:ZnS single crystal as a laser active element [14]. Subsequently, the laser action in microchip configuration [15], picosecond passive mode-locking [16] and finally, femtosecond SESAM-initiated mode-locking was obtained in 2011 with 1.2 nJ 110 fs pulses [17]. The CW output power of 10 W was obtained recently using polycrystalline Cr:ZnS as an active element [18].…”

mentioning

confidence: 99%

Kerr-lens mode-locked Cr:ZnS laser

Tolstik¹,

Sorokin²,

Sorokina³

2013

Opt. Lett.

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Received Month X, XXXX; revised Month X, XXXX; accepted Month X, XXXX; posted Month X, XXXX (Doc. ID XXXXX); published Month X, XXXX We report the soft-aperture Kerr-lens mode-locked Cr:ZnS laser, generating 550 mW of 69-fs nearly transform-limited pulses at 2.39 µm wavelength. The pulse energy reached 3.8 nJ at 145 MHz repetition rate, limited by the onset of doublepulsing. This corresponds to the shortest-pulse and highest-energy direct femtosecond laser source in the mid-IR. Dispersion compensation was achieved by a single chirped mirror and a thin sapphire plate, making the laser design simple, compact and very stable, operating at ambient air and room temperature. The superb thermal and mechanical properties of Cr:ZnS, exceeding those of Cr:ZnSe and many established femtosecond laser crystals should allow further scaling of output power.

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“…In this work we demonstrate the first fiber delivery of the high energy femtosecond mid-IR laser pulses (70 fs), produced by the recently developed in our group femtosecond mid-IR Cr:ZnS laser [11,12]. By changing the launched pulse energy we are able to observe a transition from strongly chirped linear to solitonic propagation at launched energies below 2 nJ.…”

Section: Introductionmentioning

confidence: 93%

Soliton delivery of mid-IR femtosecond pulses with ZBLAN fiber

Tolstik¹,

Sorokin²,

Калашников³

et al. 2012

Opt. Mater. Express

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Abstract:We demonstrate environmentally protected delivery of highpower femtosecond mid-IR pulses in a single-mode ZBLAN fiber by soliton formation. A 70-fs Cr:ZnS laser at 2.4 µm reaches this regime already at ~2 nJ launched pulse energy, while a 110-fs pulse can be transmitted without visible shortening over meters of fiber. We also measured the nonlinearoptical coefficient of ZBLAN as n 2 = 2.7 ± 0.2 × 10 −16 cm 2 /W at 2.4 µm wavelength.

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Femtosecond operation and self-doubling of Cr:ZnS laser

Abstract: Prismless dispersion-controlled Cr:ZnS laser generates first femtosecond (110 fs) pulses at 180 MHz repetition rate around 2400 nm with average power 200 mW. Co-propagating secondharmonic pulse at 1200 nm is simultaneously generated in ceramic sample.

Cited by 9 publications

References 12 publications

Broad-band dispersion measurement of ZBLAN, germanate and silica fibers in mid-IR

Broad-band dispersion measurement of ZBLAN, germanate and silica fibers in mid-IR

Kerr-lens mode-locked Cr:ZnS laser

Soliton delivery of mid-IR femtosecond pulses with ZBLAN fiber

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