Results 271 to 280 of about 18,351 (310)

Bidirectional mode-locked thulium-doped fiber laser

Applied Optics, 2018
We report a bidirectional mode-locked thulium-doped fiber laser. Mode-locking is enabled by the combination of semiconductor saturable absorption and nonlinear polarization rotation. Two stable mode-locked picosecond pulse trains in opposite directions are generated with a fundamental repetition rate of ∼16.57  MHz.
Nurmemet Abdukerim, M. Imrul Kayes, Alexandre Rekik, Martin Rochette   +3 more
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Thulium-doped fiber amplifier for the S-band

Proceedings of 2004 6th International Conference on Transparent Optical Networks (IEEE Cat. No.04EX804), 2004
Two configurations of thulium-doped fiber amplifiers (TDFA) are presented and the performance of the amplifier in these configurations is discussed. The measurements are compared with a simulation using a self-written model and compared with results reported in the literature.
M.M. Kozak, R. Caspary, W. Kowalsky
openaire   +1 more source

Progress in thulium doped fiber lasers and aplifiers

SPIE Proceedings, 2012
We present results on the development of signal sources for the 2000 nm band. The ASE source is presented with a FWHM bandwidth of 70 nm and -20dB bandwidth of 229 nm with an integrated power of 7.5 mW. Narrow band lasers are presented made of a short piece of core-pumped thulium doped fiber and fiber Bragg gratings.
P. Honzátko, P. Vojtisek, B. Vitovec
openaire   +1 more source

Scaling Bottlenecks in Thulium-doped Fiber Lasers

Frontiers in Optics 2013, 2013
Thulium offers novel applications at 2 μm, and with continued developments, peak and average powers will increase to that of rival rare-earth dopants. Limitations that impede growth are namely; nonlinearities, thermal management, and fiberized components.
Alex Sincore, R. Andrew Sims, Christian Gaida, Pankaj Kadwani, Lawrence Shah, Martin C. Richardson   +5 more
openaire   +2 more sources

High Power Thulium Doped Fiber Lasers

Optical Fiber Communication Conference and National Fiber Optic Engineers Conference, 2009
Thulium-doped silica fiber lasers and amplifiers offer a route to very high average power in the two-micron wavelength regime. This presentation reviews recent progress and considers the prospects for further improvement in performance.
W. A. Clarkson, L. Pearson, Z. Zhang, J. W. Kim, D. Shen, A. J. Boyland, J. K. Sahu, M. Ibsen   +7 more
openaire   +1 more source

Nonlinear dynamics of thulium-doped fiber lasers

Optical Fiber Communication Conference (OFC) 2025
Ultrafast thulium-doped fiber lasers that can generate different types of dissipative solitons in the same cavity are presented together with their unique transition and nonlinear dynamics, including soliton molecule formation.
Shutao Xu, Timothy Lim, Michelle Y. Sander   +2 more
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Fabrication of thulium-doped silica optical fiber

SPIE Proceedings, 1998
In this article, we mainly describe the preparation of the silica optical fiber doped with rare earth ion Tm3+ by utilizing solution-doped technique, and the control of relevant parameters of the fiber. The control and the measurement method of dopantion concentration of Tm3+ have also been discussed.
Ling Ruan, Wentao Wang, Zhijie Zhang, Ding Ning, Yunhua Shen, Dongfeng Liu   +5 more
openaire   +1 more source

Recent progress in thulium-doped fiber amplifiers

SPIE Proceedings, 2003
I review the fast growing progress in thulium doped fiber amplifiers (TDFA) for S-band optical communication systems. The main results reported on pump schemes and amplifiers efficiencies are given. In particular, the characterization of TDFAs regarding distributed gain optimization using the coherent optical frequency domain reflectometry is described,
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Tunable thulium-doped all-fiber laser

IEEE Photonics Technology Letters, 1998
We demonstrate a tunable thulium-doped fiber ring laser wherein a single fused coupler acts simultaneously as the wavelength-division multiplexing for pump radiation, a lasing wavelength selective element, and output mirror. Temperature tuning of up to 2 nm//spl deg/C over a range of 40 nm and polarization tuning of over 100 nm within the spectral ...
R.L. Shubochkin, V.A. Kozlov, A.L.G. Carter, T.F. Morse   +3 more
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Q-switched thulium-doped fiber laser

Optical Engineering, 1993
A tunable Q-switched thulium-doped single-mode silica fiber laser is presented for the first time. Its performance is analyzed as a function of pulse repetition rate and pumping power. The optimization of laser parameters resulted in 4 W/1 30 ns, 1 .92-jrm wavelength pulses generated at a 4-kHz repetition rate. From the measured values of small- signal
openaire   +1 more source