Title :
A frequency calibration method for multilocation optical FDM networks
Author :
Jiang, Quan ; Kavehrad, Mohsen
Author_Institution :
Dept. of Electr. Eng., Ottawa Univ., Ont., Canada
Abstract :
A simple laser frequency calibration method is proposed for optical frequency-division-multiplexing communications networks where users are at remote locations. We calibrate the frequency of a transmitter laser by tuning it to a resonant peak of a Fabry-Perot etalon and determining the mode number of the resonant peak. We use a distributed frequency reference and a local Fabry-Perot etalon whose cavity length is slightly changed during the measurement. This method provides a high measurement accuracy with a cavity length change of less than 5%.<>
Keywords :
calibration; fibre lasers; frequency division multiplexing; optical links; Er doped fibre amplifiers; Fabry-Perot etalon; cavity length; cavity length change; distributed frequency reference; frequency calibration method; frequency-division-multiplexing communications networks; high measurement accuracy; laser frequency calibration method; local Fabry-Perot etalon; mode number; multilocation optical FDM networks; remote locations; resonant peak; transmitter laser; Calibration; Communication networks; Fabry-Perot; Frequency; Laser modes; Laser tuning; Length measurement; Optical fiber networks; Optical transmitters; Resonance;
Journal_Title :
Photonics Technology Letters, IEEE
