Efficient optical harmonic converterwith 1.5 µm MQW DFB VUG laser formillimetre wave radio applications

Abstract
An investigation into harmonic conversion showed that 1.5 µm MQW DFB lasers are very attractive for efficient millimetre wave generation. The generation of 38 GHz with a signal to noise (S/B) better than 50 dB and an output power of more than –31 dBm has been achieved with a modulation power of only 15 dBm at a frequency of 7.6 GHz.