Photonic microwave oscillator based on monolithic DFB lasers with frequency-shifted feedback

Lihua Wang (1) , Marco Romanelli (1) , Frederic van Dijk (2) , Marc Vallet (1)

1 IPR - Institut de Physique de Rennes
2 III-V Lab - Alcatel-Thalès III-V lab

A photonic oscillator, locked to a master RF synthesiser, was built by using a monolithic dual-wavelength DFB semiconductor laser submitted to a frequency-shifted optical feedback. A [3; 10] GHz tuning range is reported, with a phase noise level lower than −70 dBrad2/Hz at a 10 Hz offset from the carrier.

Domaines: Optique [physics.optics]; Optique / photonique

Lihua Wang, Marco Romanelli, Frederic van Dijk, Marc Vallet. Photonic microwave oscillator based on monolithic DFB lasers with frequency-shifted feedback. Electronics Letters, 2014, 50 (6), pp.451. ⟨hal-00967127v1⟩