Title :
Towards a large-scale, optical timing distribution system with sub-femtosecond residual timing jitter
Author :
Peng, Michael Y. ; Callahan, Patrick T. ; Nejadmalayeri, A.H. ; Kartner, Franz X. ; Roberts, Timothy D. ; Battle, Philip ; Valente, Sabrina ; Ahmed, Khandakar ; Ming Xin ; Monberg, Eric ; Yan, M. ; Gruner-Nielsen, L. ; Fini, John M.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci. & Res. Lab. for Electron., Massachusetts Inst. of Technol., Cambridge, MA, USA
Abstract :
We present here key technologies for an all-optical timing distribution system with sub-femtosecond precision. Timing distribution over a 1.2-km polarization-maintaining, fiber-optic link using balanced optical cross-correlators (BOC) for link stabilization was demonstrated for 16 days with 0.6 fs RMS timing drift and during a 3-day interval only 0.13 fs drift. Jitter characterization of two identical commercial femtosecond lasers using the BOC method verified sub-100-as timing jitter for frequencies above than 1 kHz. Preliminary operation of a fiber-coupled, hybrid-integrated BOC using periodically-poled KTiOPO4 (PPKTP) waveguides indicate great potential for improved BOC timing sensitivities and overall system efficiency and robustness.
Keywords :
high-speed optical techniques; jitter; optical fibres; optical links; potassium compounds; timing; KTiOPO4; RMS timing drift; balanced optical cross-correlators; distance 1.2 km; femtosecond lasers; large-scale optical timing distribution system; periodically-poled KTiOPO4 waveguides; polarization-maintaining fiber-optic link; sub-femtosecond residual timing jitter; time 0.13 fs; time 16 day; Optical fiber dispersion; Optical fiber polarization; Timing; Timing jitter; Ultrafast optics; nonlinear optical devices; optical fiber applications; phase locked loops; timing jitter; ultrafast optics;
Conference_Titel :
European Frequency and Time Forum & International Frequency Control Symposium (EFTF/IFC), 2013 Joint
Conference_Location :
Prague
DOI :
10.1109/EFTF-IFC.2013.6702131
