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Proceedings Paper

High-speed tunable and fixed-wavelength VCSELs for short-reach optical links and interconnects
Author(s): A. Larsson; J. S. Gustavsson; Å. Haglund; B. Kögel; J. Bengtsson; P. Westbergh; E. Haglund; P. P. Baveja
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Paper Abstract

This paper presents a review of recent work on high speed tunable and fixed wavelength vertical cavity surface emitting lasers (VCSELs) at Chalmers University of Technology. All VCSELs are GaAs-based, employ an oxide aperture for current and/or optical confinement, and emit around 850 nm. With proper active region and cavity designs, and techniques for reducing capacitance and thermal impedance, our fixed wavelength VCSELs have reached a modulation bandwidth of 23 GHz, which has enabled error-free 40 Gbps back-to-back transmission and 35 Gbps transmission over 100 m of multimode fiber. A MEMS-technology for wafer scale integration of tunable high speed VCSELs has also been developed. A tuning range of 24 nm and a modulation bandwidth of 6 GHz have been achieved, enabling error-free back-to-back transmission at 5 Gbps.

Paper Details

Date Published: 7 February 2012
PDF: 9 pages
Proc. SPIE 8276, Vertical-Cavity Surface-Emitting Lasers XVI, 82760H (7 February 2012); doi: 10.1117/12.910261
Show Author Affiliations
A. Larsson, Chalmers Univ. of Technology (Sweden)
J. S. Gustavsson, Chalmers Univ. of Technology (Sweden)
Å. Haglund, Chalmers Univ. of Technology (Sweden)
B. Kögel, Chalmers Univ. of Technology (Sweden)
J. Bengtsson, Chalmers Univ. of Technology (Sweden)
P. Westbergh, Chalmers Univ. of Technology (Sweden)
E. Haglund, Chalmers Univ. of Technology (Sweden)
P. P. Baveja, Institute of Optics, Univ. of Rochester (United States)

Published in SPIE Proceedings Vol. 8276:
Vertical-Cavity Surface-Emitting Lasers XVI
Chun Lei; Kent D. Choquette, Editor(s)

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