Title :
Noise properties of microwave signals synthesized with femtosecond lasers
Author :
Ivanov, E.N. ; McFerran, J.J. ; Diddams, S.A. ; Hollberg, L.
Author_Institution :
Sch. of Phys., Western Australia Univ., Crawley, WA
Abstract :
The excess noise associated with the process of coherent optical-to-microwave frequency division was measured. This was accomplished by referencing two mode-locked Ti: sapphire lasers to the same stable CW laser and extracting microwave signals at the harmonics of pulse repetition rate. The spectral density of the excess phase noise was found to be close to -140dBc/Hz at 100Hz offset from a 10 GHz carrier
Keywords :
harmonics; laser mode locking; noise measurement; optical pulse generation; phase noise; 10 GHz; Al2O3:Ti; CW laser; coherent optical-to-microwave frequency division; femtosecond lasers; frequency stabilization; harmonics; microwave signals; mode-locked lasers; phase noise; Frequency conversion; Frequency measurement; Laser mode locking; Laser noise; Laser stability; Masers; Noise measurement; Optical noise; Signal synthesis; Ultrafast optics;
Conference_Titel :
Frequency Control Symposium and Exposition, 2005. Proceedings of the 2005 IEEE International
Conference_Location :
Vancouver, BC
Print_ISBN :
0-7803-9053-9
DOI :
10.1109/FREQ.2005.1574059
