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Proceedings Paper

Silicon photonics WDM interconnects based on resonant ring modulators and semiconductor mode locked laser
Author(s): J. Müller; J. Hauck; B. Shen; S. Romero-García; E. Islamova; S. Sharif Azadeh; S. Joshi; N. Chimot; A. Moscoso-Mártir; F. Merget; F. Lelarge; J. Witzens
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Paper Abstract

We demonstrate wavelength domain multiplexed (WDM) data transmission with a data rate of 14 Gbps based on optical carrier generation with a single-section semiconductor mode-locked laser (SS-MLL) and modulation with a Silicon Photonics (SiP) resonant ring modulator (RRM). 18 channels are sequentially measured, whereas the best recorded eye diagrams feature signal quality factors (Q-factors) above 7. While optical re-amplification was necessary to maintain the link budgets and therefore system measurements were performed with an erbium doped fiber amplifier (EDFA), preliminary characterization done with a semiconductor optical amplifier (SOA) indicates compatibility with the latter pending the integration of an additional optical filter to select a subset of carriers and prevent SOA saturation. A systematic analysis of the relative intensity noise (RIN) of isolated comb lines and of signal Q-factors indicates that the link is primarily limited by amplified spontaneous emission (ASE) from the EDFA rather than laser RIN. Measured RIN for single comb components is below -120 dBc/Hz in the range from 7 MHz to 4 GHz and drops to the shot noise level at higher frequencies.

Paper Details

Date Published: 3 April 2015
PDF: 7 pages
Proc. SPIE 9368, Optical Interconnects XV, 93680M (3 April 2015); doi: 10.1117/12.2080769
Show Author Affiliations
J. Müller, RWTH Aachen Univ. (Germany)
J. Hauck, RWTH Aachen Univ. (Germany)
B. Shen, RWTH Aachen Univ. (Germany)
S. Romero-García, RWTH Aachen Univ. (Germany)
E. Islamova, RWTH Aachen Univ. (Germany)
S. Sharif Azadeh, RWTH Aachen Univ. (Germany)
S. Joshi, III-V Lab. (France)
N. Chimot, III-V Lab. (France)
A. Moscoso-Mártir, RWTH Aachen Univ. (Germany)
F. Merget, RWTH Aachen Univ. (Germany)
F. Lelarge, III-V Lab. (France)
J. Witzens, RWTH Aachen Univ. (Germany)

Published in SPIE Proceedings Vol. 9368:
Optical Interconnects XV
Henning Schröder; Ray T. Chen, Editor(s)

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