Relative intensity noise of temperature-stable, energy-efficient 980 nm VCSELs
Hui Li,
Philip Wolf,
James A. Lott,
Dieter Bimberg
Affiliations
Hui Li
Optoelectronic Materials and Technologies Engineering Laboratory of Shandong, College of Mathematical and Physical Sciences, Qingdao University of Science and Technology, Qingdao, People’s Republic of China
Philip Wolf
Institut für Festkörperphysik and Zentrum für Nanophotonik, Technische Universität Berlin, Hardenbergstrasse 36, 10623 Berlin, Federal Republic of Germany
James A. Lott
Institut für Festkörperphysik and Zentrum für Nanophotonik, Technische Universität Berlin, Hardenbergstrasse 36, 10623 Berlin, Federal Republic of Germany
Dieter Bimberg
Institut für Festkörperphysik and Zentrum für Nanophotonik, Technische Universität Berlin, Hardenbergstrasse 36, 10623 Berlin, Federal Republic of Germany
The relative intensity noise (RIN) of temperature-stable, energy-efficient oxide confined vertical-cavity surface-emitting lasers (VCSELs) have been investigated. Low energy consumption data transmission is achieved by using small oxide-aperture diameter VCSELs biased at small currents. We demonstrate that energy efficiency is not in conflict with our VCSELs’ RIN characteristics. The experimental results indicate that small oxide-aperture diameter VCSELs, which are most suitable for energy-efficient, temperature-stable operation, exhibit lower laser RIN due to less mode competition inside the smaller optical cavity volume. Our energy-efficient VCSELs fulfill the RIN requirements of the 32G Fibre Channel standard.
