Title :
Energy Efficiency of VCSELs in the Context of Short-Range Optical Links
Author :
Szczerba, Krzysztof ; Westbergh, Petter ; Gustavsson, Johan S. ; Karlsson, Magnus ; Andrekson, Peter A. ; Larsson, Anders
Author_Institution :
Dept. of Microtechnol. & Nanosci., Chalmers Univ. of Technol., Gothenburg, Sweden
Abstract :
We present results from an investigation of the energy efficiency of vertical cavity surface emitting lasers (VCSELs) under large signal modulation. We show that the most important factor influencing the energy consumption of the VCSELs is the required optical modulation amplitude, which drives other VCSEL design requirements. The required optical modulation amplitude also depends on the optical link design. Through this dependence, it is possible to better understand the energy consumption of complete short-range optical links.
Keywords :
energy consumption; laser cavity resonators; optical communication equipment; optical design techniques; optical links; optical modulation; surface emitting lasers; VCSEL design; energy consumption; energy efficiency; optical modulation amplitude; short-range optical links; signal modulation; vertical cavity surface emitting lasers; Apertures; Bandwidth; Bit error rate; Energy consumption; Erbium; Noise; Vertical cavity surface emitting lasers; Optical communication; VCSEL; datacom; energy consumption; energy efficiency; optical communication; optical interconnect; optical link; optical modulation amplitude;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2015.2439154
