Novel ultrashort-pulse fiber lasers and their applications

Endert, Heinrich; Galvanauskes, Almantas; Sucha, G.; Patel, Rajesh

doi:10.1117/12.456810

Cited by 10 publications

(8 citation statements)

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“…Telecom wavelength, 1.5 mm for erbium-doped fiber lasers (EDFLs), pumped by solid-state source, make thermal management easier since fibers are long and thin. Sub-picosecond pulse (fs) from passively mode locked fiber laser shown high-energy pulses (nJ) and low cost, comparable to solid state Ti:Sapphire lasers [4].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of laser level populations of erbium-doped glasses

Santos

Courrol

Kassab

et al. 2007

Journal of Luminescence

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Section: Introductionmentioning

confidence: 99%

Evaluation of laser level populations of erbium-doped glasses

Santos

Courrol

Kassab

et al. 2007

Journal of Luminescence

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“…O PTICAL pulses, especially the pulses with tunable pulse-width, have many attractive applications in telecommunication, materials processing, metrology, medicine and micro-fabrication [1]- [3]. For example, pulses with tunable pulse-width can be used in telecommunication to provide the highest tolerance to optical transmission impairments.…”

Section: Introductionmentioning

confidence: 99%

Pulse-Width Tuning in a Passively Mode-Locked Fiber Laser With Graphene Saturable Absorber

Wang

Liu

2014

IEEE Photon. Technol. Lett.

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An absorption-adjustable graphene saturable absorber is used in a simple fiber laser system for an active control of the pulse-width of optical pulses. Such a saturable absorber is created by tightly attaching the graphene film onto the upper surface of the microfiber, thus an enhanced evanescence-field interaction between the propagating light along the microfiber length and graphene can be achieved. By tuning the polarization state of the light beam launched into the saturable absorber from TE to TM mode, the pulse-width of the pulses is varied between ∼9.24 and ∼2.32 ps.

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“…It opened new fields of research such as femtochemistry [1], time-resolved [2] and terahertz spectroscopy [3], two-photon microscopy [4], optical comb metrology [4], etc. Ultrashort pulses can easily reach high peak intensities and with a high repetition rate are a promising tool for precise material processing [5,6].…”

Section: Introductionmentioning

confidence: 99%

Slow and fast optical degradation of the SESAM for fiber laser mode-locking at 1 μm

Viskontas¹,

Regelskis²,

Rusteika³

2014

Lith. J. Phys.

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In this paper, we introduce a detailed study of degradation of the In x Ga 1-x As quantum well (QW) based semiconductor saturable absorber mirror (SESAM) irradiated with picosecond pulses from a fiber laser at a 1064 nm wavelength. In a slow degradation study at a lower incident fluence, the longest operating times of ~4000 h were recorded for two SESAMs with a slow carrier relaxation (τ = 15 ps) in comparison to 1000 h of the fast (τ = 1 ps) SESAM. The nonlinear reflectivity measurements after the long-term tests indicated that the most likely mechanism of SESAM degradation was the modification of the InGaAs QW structure. By reducing a thermal load on the SESAM, an expected lifetime was increased tenfold. At higher saturation levels, SESAMs experienced critical optical damage (COD) after less than 24 h of operation. The most likely mechanism of COD was deduced to be the two-photon absorption in GaAs material. The necessity of slow degradation tests close to the operating conditions of the SESAM was demonstrated.

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Novel ultrashort-pulse fiber lasers and their applications

Cited by 10 publications

References 0 publications

Evaluation of laser level populations of erbium-doped glasses

Evaluation of laser level populations of erbium-doped glasses

Pulse-Width Tuning in a Passively Mode-Locked Fiber Laser With Graphene Saturable Absorber

Slow and fast optical degradation of the SESAM for fiber laser mode-locking at 1 μm

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