Relative intensity noise of single- and multi-mode 850 nm vertical-cavity surface-emitting lasers

In this paper we present the results of relative intensity noise (RIN) measurements for single- and multi mode 850 nm vertical cavity surface emitting lasers (VCSEL). The method applied for the RIN measurements is based on an electrical spectrum measurement of a biased and unmodulated laser. The conducted measurements show that the RIN values of around 150 dB/Hz can be expected from MM and SM VCSELs.