Title :
Toward a 3:1 frequency divider based on parametric oscillation using AgGaS2 and PPLN crystals
Author :
Douillet, A. ; Zondy, J.-J. ; Yelisseyev, A. ; Lobanov, S. ; Isaenko, L.
Author_Institution :
Lab. Primaire du Temps et des Frequences, Bur. Nat. de Metrol., Paris, France
Abstract :
Frequency divide-by-two (2:1) and divide-by-three (3:1) optical parametric oscillators (OPOs) are basic devices for the implementation of future accurate optical frequency division chains. We report our latest development toward a phase-locked 3:1 frequency division of a radiation at λp≈843 nm (355.9 THz), using doubly resonant oscillators (DROs) based on silver gallium sulfide (AgGaS2 or AGS) and multi-grating periodically poled lithium niobate (PPLN). The characteristics of both devices are reported. The major limitation to their practical phase-locking comes from the too weak output coupling efficiency of the idler-wave, with a maximum of 600 μW at 2.53 μm. Only ~25 pW of the second harmonic is generated, which avoids efficient beatnote detection
Keywords :
dielectric polarisation; frequency dividers; frequency standards; gallium compounds; lithium compounds; optical harmonic generation; optical materials; optical parametric oscillators; optical variables measurement; silver compounds; ternary semiconductors; 2.53 mum; 25 pW; 355.9 THz; 3:1 frequency divider; 600 muW; 843 nm; AgGaS2; LiNbO3; PPLN crystals; beatnote detection; doubly resonant oscillators; frequency divide-by-three optical parametric oscillators; frequency divide-by-two optical parametric oscillators; idler-wave; multi-grating periodically poled material; optical frequency division chains; output coupling efficiency; parametric oscillation; phase-locked 3:1 frequency division; phase-locking; Atom optics; Frequency conversion; Laser excitation; Mirrors; Nonlinear optics; Optical frequency conversion; Optical pumping; Optical resonators; Oscillators; Pump lasers;
Conference_Titel :
Frequency and Time Forum, 1999 and the IEEE International Frequency Control Symposium, 1999., Proceedings of the 1999 Joint Meeting of the European
Conference_Location :
Besancon
Print_ISBN :
0-7803-5400-1
DOI :
10.1109/FREQ.1999.841392
