Microwave signal generation using self-heterodyning of a fast wavelength switching SG-DBR laser

Abstract

Millimeter wave difference frequencies are easily available from the SG-DBR.Temperature robustness of SG-DBR self-heterodyne signals was also investigated. While each laser wavelength by itself changes by 0.12 nm/C (21 GHz/C), the difference frequency temperature coefficient is well less than 30MHz/C typically.