Title :
Long-term stable balanced optical-microwave phase detector with sub-femtosecond residual timing jitter capability for optical-to-RF extraction
Author :
Peng, Michael Y. ; Kartner, Franz X.
Author_Institution :
Dept. of EECS & Res. Lab. for Electron., Massachusetts Inst. of Technol., Cambridge, MA, USA
Abstract :
Balanced optical-microwave phase detectors (BOMPD) based on fiber Sagnac interferometers and single-ended heterodyne detection are capable of optical-to-RF conversion with sub-femtosecond residual timing jitter. By increasing the BOMPD phase sensitivity and reducing its internal noise down to the thermal noise limit, we achieve an integrated noise floor in the sub-fs regime. Second, we demonstrate long-term stable optical-RF conversion by phase-locking an RF oscillator to a mode-locked laser using a BOMPD with <;1 fs RMS drift and <;7 fs pk-pk for over 10 hours.
Keywords :
Sagnac interferometers; high-speed optical techniques; microwave detectors; phase detectors; phase locked loops; timing jitter; fiber Sagnac interferometers; integrated noise floor; internal noise; long-term stable balanced optical-microwave phase detector; mode-locked laser; optical-to-RF extraction; phase locking; phase sensitivity; single-ended heterodyne detection; sub-femtosecond residual timing jitter capability; thermal noise limit; Adaptive optics; Noise; Optical fibers; Optical mixing; Optical pulses; Optical sensors; Ultrafast optics; femtosecond; mode-locked lasers; optical pulses; optical-RF; phase detector; phase-locked loop; synchronization; timing; ultrafast;
Conference_Titel :
Frequency Control Symposium (FCS), 2014 IEEE International
Conference_Location :
Taipei
DOI :
10.1109/FCS.2014.6859853