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Proceedings Paper

Intensity noise of ultrabroadband quantum dot light emitting diodes and lasers at 1.3µm
Author(s): M. Blazek; S. Breuer; T. Gensty; W. E. Elsäßer; M. Hopkinson; K. M. Groom; M. Calligaro; P. Resneau; M. Krakowski
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Paper Abstract

We present high precision intensity noise measurements of Quantum Dot Superluminescent LEDs and lasers emitting at 1.3μm. For the QD-SLEDs we investigate the intensity noise behavior and identify the relevant noise parameters by comparing the experimental results to theoretical calculations. We find an Excess Noise behavior due to amplified spontaneous emission, the dominant origin of noise. The investigation of the spectrally resolved emission enables further characterization of the noise properties. The influence of a resonator on the noise behavior is discussed for QD-Lasers. The noise of the laser is compared to the SLED's, and shows strong deviation from the Excess Noise character above threshold.

Paper Details

Date Published: 13 June 2007
PDF: 8 pages
Proc. SPIE 6603, Noise and Fluctuations in Photonics, Quantum Optics, and Communications, 66031Y (13 June 2007); doi: 10.1117/12.724545
Show Author Affiliations
M. Blazek, Darmstadt Univ. of Technology (Germany)
S. Breuer, Darmstadt Univ. of Technology (Germany)
T. Gensty, Darmstadt Univ. of Technology (Germany)
W. E. Elsäßer, Darmstadt Univ. of Technology (Germany)
M. Hopkinson, Univ. of Sheffield (United Kingdom)
K. M. Groom, Univ. of Sheffield (United Kingdom)
M. Calligaro, Alcatel Thales (France)
P. Resneau, Alcatel Thales (France)
M. Krakowski, Alcatel Thales (France)

Published in SPIE Proceedings Vol. 6603:
Noise and Fluctuations in Photonics, Quantum Optics, and Communications
Leon Cohen, Editor(s)

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