Title :
Adding OSNR and wavelength monitoring functionalities on a double-resolution-AWG-based power monitoring circuit
Author :
Chen, Wenlu ; Zhong, Shan ; Zhu, Zhonghua ; Chen, Wei ; Chen, Yung-Jui
Author_Institution :
Dept. of Comput. Sci. & Electr. Eng., Univ. of Maryland, Baltimore, MD, USA
fDate :
6/1/2003 12:00:00 AM
Abstract :
We propose and demonstrate an improved optical signal-to-noise ratio monitoring scheme based on a double-resolution arrayed-waveguide grating-based power monitoring circuit concatenating with a tunable periodic notch filter. This device, which can be implemented in an integrated power line carrier, exhibits much higher extinction ratio and dynamic range than current available schemes. It is also less sensitive to spectrum shape of the signal.
Keywords :
arrayed waveguide gratings; channel spacing; notch filters; optical crosstalk; optical fibre networks; optical fibre testing; optical noise; telecommunication network reliability; wavelength division multiplexing; OSNR; WDM network performance monitoring device; arrayed-waveguide grating; double-resolution-AWG-based power monitoring circuit; dynamic range; extinction ratio; integrated power line carrier; optical signal-to-noise ratio monitoring; spectrum shape; tunable periodic notch filter; wavelength monitoring functionalities; Dynamic range; Extinction ratio; Gratings; Monitoring; Optical arrays; Optical filters; Optical noise; Optical sensors; Signal to noise ratio; Tunable circuits and devices;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2003.811138
