Highly spectrally pure 90 GHz signal synthesis using a coupled optoelectronic oscillator

Aliou Ly (1) , Vincent Auroux (1) , Ramin Khayatzadeh (1) , Napoléon Gutierrez (1) , Arnaud Fernandez (1) , Olivier Llopis (1)

1 LAAS-MOST - Équipe Microondes et Opto-microondes pour Systèmes de Télécommunications

A 90 GHz frequency reference is synthesized through harmonic generation from a 30 GHz coupled optoelectronic oscillator. The 30 GHz signal and its third harmonic feature an average power level of −5.6 dBm and −15.8 dBm respectively at the photodiode output. Phase noise measurements at 30 GHz and 90 GHz have been performed and phase noise levels as low as −114.4 dBc/Hz at 1 kHz offset for the fundamental and −104 dBc/Hz at 1 kHz offset frequency for the 90 GHz signal have been obtained.

Mots clés: Optoelectronic oscillator; harmonic generation; phase noise; millimeter wave; COEO; microwave photonics

Domaines: Sciences de l'ingénieur [physics]; Optique / photonique

Aliou Ly, Vincent Auroux, Ramin Khayatzadeh, Napoléon Gutierrez, Arnaud Fernandez, et al.. Highly spectrally pure 90 GHz signal synthesis using a coupled optoelectronic oscillator. IEEE Photonics Technology Letters, 2018, 30 (14), pp.1313-1316. ⟨10.1109/LPT.2018.2845747⟩. ⟨hal-01863561⟩