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Veröffentlichungen - Publications

P. Runge, C.-A. Bunge, K. Petermann, M. Schlak, W. Brinker, B. Sartorius
Widely Tunable Short-Pulse Generation With Ultralong Semiconductor Optical Amplifiers
IEEE J. Lightwave Technol., Vol. 28, No. 5, pp. 754-760, Mar. 2010.

Abstract
Ultralong bulk semiconductor optical amplifiers (bulk UL-SOAs) have tremendous four-wave mixing (FWM) efficiencies so that due to two continuous wave (CW) input signals, a broad mode comb at the output of the UL-SOA can be obtained. When using tunable single mode lasers as input signals, the generated FWM mode comb is tunable in the mode spacing and the wavelength. As a result in time domain, widely tunable pulses in the repetition rate and the carrier frequency are obtained. Since the phase signature of the FWM modes is not linear over the whole mode comb, different filtering techniques can be applied for filtering modes with linear phase in order to efficiently generate short pulses. With the optimal filtering technique, pulses with full width at half maximum of less than 2ps and a pulse repetition rate of 20GHz can be obtained.


This paper was published in Journal of Lightwave Technology, IEEE and is made available as an electronic reprint with the permission of IEEE. The paper can be found at the following URL on the IEEE website. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.

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