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Title: 25 Gbit/s differential phase-shift-keying signal generation using directly modulated quantum-dot semiconductor optical amplifiers

Abstract

Error-free generation of 25-Gbit/s differential phase-shift keying (DPSK) signals via direct modulation of InAs quantum-dot (QD) based semiconductor optical amplifiers (SOAs) is experimentally demonstrated with an input power level of −5 dBm. The QD SOAs emit in the 1.3-μm wavelength range and provide a small-signal fiber-to-fiber gain of 8 dB. Furthermore, error-free DPSK modulation is achieved for constant optical input power levels from 3 dBm down to only −11 dBm for a bit rate of 20 Gbit/s. Direct phase modulation of QD SOAs via current changes is thus demonstrated to be much faster than direct gain modulation.

Authors:
; ; ;  [1]; ;  [2];  [3]
  1. Department of Solid-State Physics, Technische Universitaet Berlin, Hardenbergstr. 36, 10623 Berlin (Germany)
  2. Fraunhofer Institute for Telecommunications, Heinrich Hertz Institute, Einsteinufer 37, 10587 Berlin (Germany)
  3. Hochschule fuer Telekommunikation Leipzig (HfTL), Gustav-Freytag-Str. 43-45, 04277 Leipzig (Germany)
Publication Date:
OSTI Identifier:
22402506
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 106; Journal Issue: 21; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 77 NANOSCIENCE AND NANOTECHNOLOGY; AMPLIFIERS; INDIUM ARSENIDES; PHASE SHIFT; QUANTUM DOTS; SEMICONDUCTOR MATERIALS; SIGNALS

Citation Formats

Zeghuzi, A., E-mail: zeghuzi@mailbox.tu-berlin.de, Schmeckebier, H., Stubenrauch, M., Bimberg, D., Meuer, C., Schubert, C., and Bunge, C.-A. 25 Gbit/s differential phase-shift-keying signal generation using directly modulated quantum-dot semiconductor optical amplifiers. United States: N. p., 2015. Web. doi:10.1063/1.4921785.
Zeghuzi, A., E-mail: zeghuzi@mailbox.tu-berlin.de, Schmeckebier, H., Stubenrauch, M., Bimberg, D., Meuer, C., Schubert, C., & Bunge, C.-A. 25 Gbit/s differential phase-shift-keying signal generation using directly modulated quantum-dot semiconductor optical amplifiers. United States. doi:10.1063/1.4921785.
Zeghuzi, A., E-mail: zeghuzi@mailbox.tu-berlin.de, Schmeckebier, H., Stubenrauch, M., Bimberg, D., Meuer, C., Schubert, C., and Bunge, C.-A. Mon . "25 Gbit/s differential phase-shift-keying signal generation using directly modulated quantum-dot semiconductor optical amplifiers". United States. doi:10.1063/1.4921785.
@article{osti_22402506,
title = {25 Gbit/s differential phase-shift-keying signal generation using directly modulated quantum-dot semiconductor optical amplifiers},
author = {Zeghuzi, A., E-mail: zeghuzi@mailbox.tu-berlin.de and Schmeckebier, H. and Stubenrauch, M. and Bimberg, D. and Meuer, C. and Schubert, C. and Bunge, C.-A.},
abstractNote = {Error-free generation of 25-Gbit/s differential phase-shift keying (DPSK) signals via direct modulation of InAs quantum-dot (QD) based semiconductor optical amplifiers (SOAs) is experimentally demonstrated with an input power level of −5 dBm. The QD SOAs emit in the 1.3-μm wavelength range and provide a small-signal fiber-to-fiber gain of 8 dB. Furthermore, error-free DPSK modulation is achieved for constant optical input power levels from 3 dBm down to only −11 dBm for a bit rate of 20 Gbit/s. Direct phase modulation of QD SOAs via current changes is thus demonstrated to be much faster than direct gain modulation.},
doi = {10.1063/1.4921785},
journal = {Applied Physics Letters},
number = 21,
volume = 106,
place = {United States},
year = {Mon May 25 00:00:00 EDT 2015},
month = {Mon May 25 00:00:00 EDT 2015}
}