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Optics Letters

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  • Vol. 30, Iss. 5 — Mar. 1, 2005
  • pp: 456–458

High-gain Tm-doped fluoride fiber amplifier

Marc Eichhorn  »View Author Affiliations


Optics Letters, Vol. 30, Issue 5, pp. 456-458 (2005)
http://dx.doi.org/10.1364/OL.30.000456


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Abstract

A diode-pumped Tm-doped fiber-optic amplifier that has a small-signal gain of >30 dB at 1870 nm is reported. Output pulses of up to 3-W peak power at a 1-60-kHz repetition rate can be generated by amplification of 20-40-ns laser diode pulses of up to 2-mW launched peak power. The output signal quality, i.e., the ratio of the output pulse energy and the total amplified spontaneous emission (ASE) output energy between two pulses, depends on the relative propagation direction of pump and signal and can be dramatically increased by choice of the correct propagation scheme. In the optimum pump geometry the pulse energy can be raised to as much as 20 times the ASE energy. This is the first report to the author's knowledge of fiber-optic amplification of short diode laser pulses near 1.9 µm with high repetition rates in Tm-doped fibers.

© 2005 Optical Society of America

OCIS Codes
(060.2320) Fiber optics and optical communications : Fiber optics amplifiers and oscillators
(140.2020) Lasers and laser optics : Diode lasers
(140.3070) Lasers and laser optics : Infrared and far-infrared lasers
(140.3280) Lasers and laser optics : Laser amplifiers
(140.3480) Lasers and laser optics : Lasers, diode-pumped
(140.3510) Lasers and laser optics : Lasers, fiber

Citation
Marc Eichhorn, "High-gain Tm-doped fluoride fiber amplifier," Opt. Lett. 30, 456-458 (2005)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-30-5-456


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References

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