Title :
Laser frequency synthesis employing fiber four-wave mixing
Author :
Ishida, Osamu ; Shibata, Nori
Author_Institution :
NTT Transmission Syst. Lab., Kanagawa, Japan
Abstract :
Laser frequency synthesis using partially degenerated four-wave mixing (FWM) is proposed. The frequency stabilities of two input lightwaves are transferred to the third lightwave generated by FWM. The largest frequency-difference among the three lightwaves is twice that between the inputs. Cascading n stages multiples the frequency-difference by 2/sup n/. By using FWM in a 26-km single-mode optical fiber, 50-GHz offset frequency stabilization of diode lasers is demonstrated in a 1.55- mu m frequency synthesizer system based on an HCN absorption line.<>
Keywords :
laser frequency stability; multiwave mixing; optical fibres; optical frequency conversion; semiconductor lasers; 1.55 micron; 26 km; 50 GHz; FWM; HCN absorption line; fiber four-wave mixing; frequency synthesizer system; frequency-difference; input lightwaves; offset frequency stabilization; single-mode optical fiber; Fiber lasers; Fiber nonlinear optics; Four-wave mixing; Frequency conversion; Frequency synthesizers; Nonlinear optics; Optical mixing; Optical saturation; Optical wavelength conversion; Semiconductor lasers;
Journal_Title :
Photonics Technology Letters, IEEE
