Title :
Dual-Frequency Laser Phase Locked at 100 GHz
Author :
Pillet, Gregoire ; Morvan, Loic ; MeÌnager, Loïc ; Garcia, Alvaro ; Babiel, S. ; Stöhr, Andreas
Author_Institution :
Thales Res. & Technol. France, Palaiseau, France
Abstract :
We report on the generation of low phase noise millimeter-wave signal at 100 GHz with a dual-frequency laser and a high-speed photodiode. The laser beatnote is phase-locked on the tenth harmonic of a 10 GHz synthesizer through a new photonic down-converter based on a phase modulator. The spectral purity of the millimeter-wave signal has been fully characterized: it is spurious free over a large bandwidth and its phase noise is limited by the synthesizer itself (-90 dBc/Hz at 10 kHz).
Keywords :
laser mode locking; laser noise; microwave photonics; optical frequency conversion; optical modulation; optical phase locked loops; optical pulse generation; phase modulation; phase noise; photodiodes; solid lasers; dual-frequency laser phase locking; frequency 10 GHz; frequency 10 kHz; frequency 100 GHz; high-speed photodiode; laser beatnote; phase modulator; phase noise millimeter-wave signal generation; photonic down-converter; spectral purity; synthesizer; tenth harmonic; Cavity resonators; Harmonic analysis; Laser modes; Laser noise; Phase noise; Synthesizers; Microwave photonics; phase noise; phase-locked loop (PLL); photonic down-conversion; photonic millimeter wave signal generation; solid-states laser;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2014.2333036
