Title :
Optical frequency monitoring technique using arrayed-waveguide grating and pilot tones
Author :
Youn, C.J. ; Shin, S.K. ; Park, K.J. ; Chung, Y.C.
Author_Institution :
Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol., Seoul, South Korea
fDate :
8/2/2001 12:00:00 AM
Abstract :
A simple technique for monitoring the optical frequencies of WDM signals using pilot tones and an arrayed-waveguide grating is presented. Results confirm that optical frequencies of WDM signals were monitored with an accuracy better than ±2 GHz. In addition, unlike the other pilot tone based monitoring techniques, the proposed technique was not sensitive to the cross-gain modulation of EDFAs
Keywords :
diffraction gratings; frequency measurement; monitoring; optical arrays; optical waveguide components; wavelength division multiplexing; EDFA; WDM signal; arrayed waveguide grating; cross-gain modulation; optical frequency monitoring; pilot tone;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20010706
