Direct observation of the coherent spectral hole in the noise spectrum of a saturated InAs/InP quantum dash amplifier operating near 1550 nm

Conference: ECOC 2007 - 33rd European Conference and Exhibition of Optical Communication
09/16/2007 - 09/20/2007 at Berlin, Germany

Proceedings: ECOC 2007

Pages: 2Language: englishTyp: PDF

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Capua, A.; Mikhelashvili, V.; Eisenstein, G. (Electrical Engineering Dept., Technion, Haifa 32000, Israel)
Reithmaier, J. P. (Technische Physik, Institute of Nanostructure Technologies and Analytics, University Kassel, Heinrich-Plett-Str. 40, 34109 Kassel, Germany)
Somers, A.; Forchel, A. (Technische Physik, Universitt Wrzburg, Am Hubland, 97074 Wrzburg, Germany)
Calligaro, M.; Parillaud, O.; Krakowski, M. (Alcatel - Thales 3-5 Lab, Route dpartementale 128, 91767 Palaiseau, France)

We demonstrate a direct observation of the coherent noise spectral hole in a saturated quantum dash amplifier. Its width 500-600 GHz is determined by the response time and is responsible for high speed regeneration properties.