Title :
Modulation Characteristics of High-Speed and High-Temperature Stable 980 nm Range VCSELs Operating Error Free at 25 Gbit/s up to 85 °C
Author :
Mutig, Alex ; Lott, James A. ; Blokhin, Sergey A. ; Moser, Philip ; Wolf, Philip ; Hofmann, Werner ; Nadtochiy, A.M. ; Bimberg, Dieter
Author_Institution :
Inst. fuer Festkoerperphys. & the Zentrum fuer Nanophotonik, Tech. Univ. Berlin, Berlin, Germany
Abstract :
High-speed oxide-confined 980 nm vertical cavity surface emitting lasers (VCSELs), exhibiting very temperature stable static and dynamic characteristics, are presented, which are well-suited for future optical data link and high-performance computing applications. Error-free operation at data rates of 25 Gbit/s in a wide temperature range from 25 to 85 °C is achieved without the need to adjust any of the electrical driving parameters. Small-signal modulation of VCSELs with different oxide aperture diameters is analyzed to identify the primary mechanisms that control device modulation rate by extracting the standard two-pole rate equation parameters.
Keywords :
laser cavity resonators; laser stability; optical control; optical modulation; quantum well lasers; surface emitting lasers; VCSEL; bit rate 25 Gbit/s; dynamic properties; high-performance computing; high-speed oxide-confined vertical cavity surface emitting lasers; high-temperature stability; optical data link; oxide aperture diameters; small-signal modulation; static properties; temperature 25 degC to 85 degC; two-pole rate equation parameters; wavelength 980 nm; Apertures; Modulation; Optical interconnections; Semiconductor lasers; Vertical cavity surface emitting lasers; High-speed modulation; optical interconnects; semiconductor lasers; short-reach fiber optic links; vertical-cavity surface-emitting lasers (VCSELs);
Journal_Title :
Selected Topics in Quantum Electronics, IEEE Journal of
DOI :
10.1109/JSTQE.2010.2098851
