Title :
OSNR monitoring technique based on orthogonal delayed-homodyne method
Author :
Youn, C.J. ; Park, K.J. ; Lee, J.H. ; Chung, Y.C.
Author_Institution :
Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol., South Korea
Abstract :
We have proposed and demonstrated a simple technique to monitor the OSNR in WDM networks. This technique has no pattern dependency and could measure the receiver noise power within the modulation bandwidth by using the orthogonal delayed-homodyne method. The results show that the proposed technique could measure the OSNR´s of WDM channels with accuracy better than 0.5 dB even after transmission over 640 km of single mode fibre.
Keywords :
measurement errors; monitoring; optical fibre testing; optical noise; telecommunication channels; wavelength division multiplexing; 640 km; OSNR monitoring; SMF; WDM channels; WDM networks; accuracy; modulation bandwidth; orthogonal delayed-homodyne method; pattern dependency; receiver noise power; single mode fibre; Bit error rate; Degradation; Delay; Monitoring; Optical control; Optical distortion; Optical noise; Optical receivers; Scanning probe microscopy; Signal to noise ratio;
Conference_Titel :
Optical Fiber Communication Conference and Exhibit, 2002. OFC 2002
Print_ISBN :
1-55752-701-6
DOI :
10.1109/OFC.2002.1036177
