Compact fiber source emitting at 2.1 μm
with an output power of 2 W

Kurkov, Andrei S; Paramonov, V. M.; Medvedkov, O.I.; Pyrkov, Yu. N.; Dianov, E. M.; Goncharov, S. E.; Zalevskii, I D

doi:10.1002/lapl.200510075

Cited by 12 publications

(6 citation statements)

References 5 publications

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“…In this paper we propose a new scheme of the passive Qswitched laser where Ho-doped fiber is used as the saturated absorber. Earlier this fiber type was used to get a lasing in a range 2 μm [11,12]. For these active ions the lifetime in the excited state is also long, namely approximately of 0.5 ms and we suggest close Ho-doped fiber by Bragg grating reflectors forming a separate cavity.…”

Section: Wavelength Nmmentioning

confidence: 98%

All fiber Yb-Ho pulsed laser

2009

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Abstract:For the first time we have suggested and realized passive Q-switched Yb-doped fiber laser with a saturable absorber based on Ho-doped fiber laser. The pulse duration was of 250 ns, the pulse energy -70 μJ, the peak power -300 W. The laser is perspective for technology processes. Possible ways of laser characteristics improving are discussed. At present CW Yb-doped fiber lasers [1] have found different applications. Q-switched fiber lasers due to high pulse energy allow one to increase a number of applications including medicine, material processing, range finding etc. Q-switched oscillation can be obtained using outer electro-or magnetomechanical devices [2,3], however all fiber pulsed lasers are of special interest since they keep all advantages of fiber lasers, namely compactness, absence of mechanical elements, long time stability etc. Up to now several schemes of such lasers were proposed and realized. One of them is self Q-switched fiber laser where to avoid CW lasing, a continuous feedback is suppressed by the isolation of the output laser end. In this scheme lasing is provided by the input Bragg grating and dynamic feedback caused by stimulated Brillouin scattering [4,5] or Rayleigh scattering [6]. Output energy of 0.17 mJ was achieved when the additional amplification of the laser emission was applied [7]. Disadvantage of this approach consists in instability of the train frequency and the pulse amplitude. Also there is a requirement to suppress the reflection from the output end that complicates laser applications. Another approach consists in the application of a fiber saturable absorber within the laser cavity.Thus, Cr-doped fiber was used as absorber in Nddoped fiber [8]. In [9] it was demonstrated that a placing of Sm-doped fiber in the cavity of Yb-doped fiber laser allows one to get the pulse generation occurring in extremely stable manner with pulse energy of approximately 20 μJ. A Q-switch pulse had a nearly perfect pulse shape with a ∼ 650 ns FWHM. The interesting approach was applied in [10], where Bi-doped fiber played a role of the saturated absorber. In contrast to Cr and Sm-doped fibers, Bi

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Section: Wavelength Nmmentioning

confidence: 98%

All fiber Yb-Ho pulsed laser

2009

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“…There has been growing interest in YDFL that operates in pulsed regime, especially with ultra short pulse width could be widely used in laser processing, medicine, supercontinuum generation and so on [58][59][60][61][62][63][64][65][66][67]. It is to be noted that YDFL that operates in CW regime could also be developed for further scientific use, for example, frequency doubling to blue or yellow, and be employed as pump source for 2 µm band mid infrared radiation generation [10,[68][69][70][71]. The polar ization maintained high power YDFL and special designed Yb doped fiber could also find widely appli cation potentials [72,73].…”

Section: Widely Tunable Ydflmentioning

confidence: 99%

“…High power YDFL operating near 980 nm are of great interest for the generation of blue emission through second harmonic generation. YDFLs with the emission wavelengths in the wavelength 1120-1160 nm can be defiantly used as pump source for Ho doped fiber laser emitting in the 2 µm region [10,11].…”

Section: Introductionmentioning

confidence: 99%

Review on recent progress on Yb-doped fiber laser in a variety of oscillation spectral ranges

Zhang

Wang

et al. 2012

Laser Phys.

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“…On the other hand, high power lasers in L-band have many applications. For example, they are good pump sources for holmium-doped or thulium-doped fiber lasers in mid-infrared region [8]- [11]. Besides, the L-band YDFLs can be transferred to yellow light through frequency doubling, which is a good source for applications in medicine and astronomy [12]- [16].…”

Section: Introductionmentioning

confidence: 99%