Title :
A cold-start WDM system using a synchronized etalon filter
Author :
Jang, J.H. ; Shin, S.K. ; Kim, H. ; Lee, K.S. ; Park, K.J. ; Chung, Y.C.
Author_Institution :
Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol., Taejon, South Korea
fDate :
3/1/1997 12:00:00 AM
Abstract :
We demonstrate a 4/spl times/2.5 Gb/s cold-start WDM system using a synchronized etalon filter. This system automatically operated its transmitter lasers at the standardized wavelengths of 1547.82+n/spl times/0.8 nm (193.686-n/spl times/0.100 THz), where n is the channel number, to an accuracy of 1 GHz, The output power of each laser was also adjusted to be 0/spl plusmn/0.1 dBm simultaneously. Error-free transmission (BER <10/sup -9/) was achieved within 20 s after turning on the system´s power supply.
Keywords :
distributed feedback lasers; error statistics; interference filters; laser frequency stability; multiplexing equipment; optical transmitters; synchronisation; wavelength division multiplexing; 1547.82 nm; 2.5 Gbit/s; BER; accuracy; channel number; cold-start WDM system; error-free transmission; output power; synchronized etalon filter; transmitter lasers; Frequency synchronization; Laser modes; Laser stability; Laser theory; Laser tuning; Optical filters; Power generation; Power lasers; Production facilities; Wavelength division multiplexing;
Journal_Title :
Photonics Technology Letters, IEEE
