7-W single-mode thulium-doped fibre laser pumped at 1230 nm

Kravtsov, Konstantin; Bufetov, I. A.; Medvedkov, O.I.; Dianov, Evgenii M; Yashkov, Mikhail V.; Guryanov, A. N.

doi:10.1070/qe2005v035n07abeh008968

Cited by 9 publications

(6 citation statements)

References 12 publications

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“…Данный подход использовался в работе [8] для реализации ту-лиевого волоконного лазера. Однако эффективность использования такой накачки ограничена появлением поглощения из возбужденного состояния, приводящего к покаскадному заселению верхних уровней и потере энергии накачки.…”

Section: тулиевые волоконные усилителиunclassified

Fiber Amplifiers for Two-Micron Range

Kurkov¹

2015

Aph

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ВОЛОКОННЫЕ УСИЛИТЕЛИ ДВУХМИКРОННОГО ДИАПАЗОНА (ОБЗОРНАЯ СТАТЬЯ)Показано, что развитие технологии получения волокон с полой сердцевиной позволяет рассматривать их применение для линий связи, оперирующих в двухмикронной области. В свою очередь, это требует разработки волоконно-оптических усилителей для этого спектрального диа-пазона. Рассматрено построение таких усилителей и основные результаты, достигнутые к на-стоящему времени.Ключевые слова: микроструктурированные волокна, волоконно-оптические усилители, двухмикронная область. A.S. Kurkov FIBER AMPLIFIERS FOR TWO-MICRON RANGEThe article shows that the development of technology for production of fibers with a hollow core allows us to consider their application for communication lines, operating in two-micrometer region. In turn, this requires development of optical fiber amplifiers for this spectral range. In this paper, we consider the construction of such amplifiers and the main results achieved so far.

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Section: тулиевые волоконные усилителиunclassified

Fiber Amplifiers for Two-Micron Range

Kurkov¹

2015

Aph

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“…erbium and thulium fibre lasers [16,18]. They are also used in second-harmonic generation and other types of nonlinear optic devices [19,20] and find application in metrology and space communications [21].…”

Section: Fibre Raman Oscillatorsmentioning

confidence: 99%

Nonlinear fibre-optic devices pumped by semiconductor disk lasers

Chamorovskiy¹,

Okhotnikov²

2012

Quantum Electron.

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Semiconductor disk lasers offer a unique combination of characteristics that are particularly attractive for pumping Raman lasers and amplifiers. The advantages of disk lasers include a low relative noise intensity (-150 dB Hz -1 ), scalable (on the order of several watts) output power, and nearly diffraction-limited beam quality resulting in a high (~70 % -90 %) coupling efficiency into a single-mode fibre. Using this technology, low-noise fibre Raman amplifiers operating at 1.3 mm in co-propagation configuration are developed. A hybrid Raman-bismuth doped fibre amplifier is proposed to further increase the pump conversion efficiency. The possibility of fabricating mode-locked picosecond fibre lasers operating under both normal and anomalous dispersion is shown experimentally. We demonstrate the operation of 1.38-mm and 1.6-mm passively mode-locked Raman fibre lasers pumped by 1.29-mm and 1.48-mm semiconductor disk lasers and producing 1.97-and 2.7-ps pulses, respectively. Using a picosecond semiconductor disk laser amplified with an ytterbium-erbium fibre amplifier, the supercontinuum generation spanning from 1.35 mm to 2 mm is achieved with an average power of 3.5 W.

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“…A newly presented tandem pump scheme, which employs a 1908 nm TDFL as pump source for a 2005 nm TDFL, can improve the slope efficiency to >90% with W-level output power [12], but further endeavors should be paid to realize higher power output. The ~1200 nm pump band covers the emission and Raman scattering wavelengths of YDFLs, and moderate pump efficiency of TDFLs can be achieved in this band [13][14][15][16][17]. Although exited-state absorption (ESA) effect may limit the quantum efficiency to a certain extent, slope efficiency of 0.51 has been demonstrated using 1150 nm LDs [16].…”

Section: Introductionmentioning

confidence: 97%

Powerful 2-μm all-fiber laser sources pumped by Raman fiber lasers

Wang

Zhang

et al. 2014

SPIE Proceedings

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We present novel and powerful pump schemes for fiber laser sources operating near 2 μm, which employing high power Raman fiber lasers (RFLs) to provide sufficient pump light. Firstly, we demonstrate a Tm-doped fiber laser (TDFL) pumped by two RFLs at 1173 nm. The output power of the TDFL reached 96 W with slope efficiency of 0.42, and the central wavelength located at 1943.3 nm. This is the first TDFL with 100 W-level output power pumped by RFLs around Tm 3+ ions' ~1200 nm absorption band. Secondly, we demonstrate a Ho-doped fiber laser (HDFL) employing a 1150 nm RFL as pump source. The 1150 nm RFL provided 110 W pump power and the output power of the HDFL reached 42 W with slope efficiency of 0.37. The lasing wavelength covered from 2046.8 nm to 2049.5 nm with optical signal-to-noise ratio more than 30 dB. This is the first HDFL pumped by a 1150 nm RFL and the highest output power achieved at this pump band. In the last, we present a high power Ho-doped fiber (HDF) superfluorescent source (SS) pumped by a 1150 nm RFL. The SS's output power reached 1.5 W, and the full width at half maximum was about 30 nm. This is the highest output power achieved in HDF as far as we know. The results above indicate promising and powerful pump schemes to achieve higher power output in fiber lasers near 2 μm, which also can be further improved by optimizing the parameters of the sources.

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7-W single-mode thulium-doped fibre laser pumped at 1230 nm

Cited by 9 publications

References 12 publications

Fiber Amplifiers for Two-Micron Range

Fiber Amplifiers for Two-Micron Range

Nonlinear fibre-optic devices pumped by semiconductor disk lasers

Powerful 2-μm all-fiber laser sources pumped by Raman fiber lasers

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