High-speed tunable and fixed-wavelength VCSELs for short-reach optical links and interconnects

A. Larsson; J. S. Gustavsson; Å. Haglund; B. Kögel; J. Bengtsson; P. Westbergh; E. Haglund; P. P. Baveja

doi:10.1117/12.910261

7 February 2012 High-speed tunable and fixed-wavelength VCSELs for short-reach optical links and interconnects

A. Larsson, J. S. Gustavsson, Å. Haglund, B. Kögel, J. Bengtsson, P. Westbergh, E. Haglund, P. P. Baveja

Proceedings Volume 8276, Vertical-Cavity Surface-Emitting Lasers XVI; 82760H (2012) https://doi.org/10.1117/12.910261
Event: SPIE OPTO, 2012, San Francisco, California, United States

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.

Citation Download Citation

A. Larsson, J. S. Gustavsson, Å. Haglund, B. Kögel, J. Bengtsson, P. Westbergh, E. Haglund, and P. P. Baveja "High-speed tunable and fixed-wavelength VCSELs for short-reach optical links and interconnects", Proc. SPIE 8276, Vertical-Cavity Surface-Emitting Lasers XVI, 82760H (7 February 2012); https://doi.org/10.1117/12.910261

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