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Proceedings Paper

Comparison of a Yb-doped fiber and a semiconductor taper for amplification of picosecond laser pulses
Author(s): Sina M. Riecke; Kristian Lauritsen; Hendrick Thiem; Katrin Paschke; Rainer Erdmann
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Paper Abstract

In this paper, we compare two amplifier technologies, an ytterbium-doped fiber, and a semiconductor taper, regarding their suitability to amplify sub-100ps pulses. With both setups, we obtain amplification of the pulse energy by more than 10dB. However, suppression of self-lasing in the pulse intervals is critical, particularly in the case of the semiconductor amplifier which has a very short upper state lifetime. The seed pulses were generated by a gain-switched distributed feedback (DFB) laser at arbitrary repetition rates. They have widths of below 100ps FWHM, pulse energies of over 100pJ and a peak power of over 700mW. This makes them very suitable for optical amplification. With the fiber amplifier, the pulse form remained unchanged, while with the semiconductor amplifier, it broadened slightly. With both amplifiers, pulse peak powers of over 8W were obtained, which represents an amplification by more than 10dB.

Paper Details

Date Published: 7 February 2009
PDF: 10 pages
Proc. SPIE 7212, Optical Components and Materials VI, 72120O (7 February 2009); doi: 10.1117/12.808688
Show Author Affiliations
Sina M. Riecke, PicoQuant GmbH (Germany)
Kristian Lauritsen, PicoQuant GmbH (Germany)
Hendrick Thiem, Ferdinand-Braun-Institut für Höchstfrequenztechnik (Germany)
Katrin Paschke, Ferdinand-Braun-Institut für Höchstfrequenztechnik (Germany)
Rainer Erdmann, PicoQuant GmbH (Germany)


Published in SPIE Proceedings Vol. 7212:
Optical Components and Materials VI
Shibin Jiang; Michel J. F. Digonnet; John W. Glesener; J. Christopher Dries, Editor(s)

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