Vertical-cavity surface-emitting laser: theoretical analysis and experimental investigation on white amplitude noise

摘要

The amplitude noise of a VCSEL emitting in the 840 nm range has been studied in a medium frequency range. The optical noise spectral density is similar to the optical nose of a 'normal' edge emitting laser. However, the value of the white electrical nose spectral density is two decades higher than the shotnoise reference level; over theoretical approach allow us to think that the electrical noise is dominated, above threshold, by the noise of the multiple mirror junctions.