Title :
Beat-frequency locking of ultradense WDM channels using a tunable laser source
Author :
Kim, Sang-Yuep ; Huh, Suk-Woo ; Lee, Sang-Hoon ; Seo, Kyung-Hee ; Lee, Jae-Seung
Author_Institution :
Dept. of Electron. Eng., Kwangwoon Univ., Seoul, South Korea
fDate :
5/1/2004 12:00:00 AM
Abstract :
We present a beat-frequency-locking method that uses a tunable laser source (TLS) for the alignment of ultradense (UD) wavelength-division-multiplexing (WDM) channels. The beat-frequency signals between UD-WDM channels and the TLS are used to align the UD-WDM channels within microwave accuracies. As a demonstration, we align 64 UD-WDM channels in 12.5-GHz channel spacing with less than ±100-MHz errors.
Keywords :
channel spacing; laser mode locking; laser tuning; optical fibre communication; semiconductor lasers; wavelength division multiplexing; UD-WDM channels; beat-frequency locking; channel spacing; tunable laser source; ultradense WDM channels alignment; wavelength division multiplexing; Channel spacing; Diode lasers; Fiber lasers; Masers; Optical coupling; Optical fiber communication; Optical fiber networks; Radio frequency; Tunable circuits and devices; Wavelength division multiplexing;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2004.826062
