Title :
Multiple-channel OSNR monitoring using integrated planar lightwave circuit and fast fourier transform techniques
Author :
Lin, Xiao ; Yan, Li
Author_Institution :
Dept. of Comput. Sci. & Electr. Eng., Maryland Univ., Baltimore, MD, USA
Abstract :
In this paper, we propose multiple-channel OSNR monitoring using integrated planar lightwave circuit (PLC) and fast Fourier transform (FFT) techniques with a single detector. We experimentally demonstrated a 4-channel OSNR monitoring and accurately measured OSNR up to 20 dB. Optical signal to noise ratio (OSNR) monitoring is one of the essential optical performance monitoring functions in wavelength-division-multiplexing (WDM) systems. Different OSNR monitoring methods have been reported. The arrayed-waveguide grating (AWG) with a detector array has been widely used to monitor OSNR of WDM channels.
Keywords :
arrayed waveguide gratings; channel spacing; fast Fourier transforms; integrated optoelectronics; optical fibre communication; spectral analysers; wavelength division multiplexing; 20 dB; 4-channel OSNR monitoring; AWG; WDM; arrayed-waveguide grating; detector array; fast fourier transform technique; integrated planar lightwave circuit; multiple-channel OSNR monitoring; optical signal to noise ratio; wavelength-division-multiplexing system; Fast Fourier transforms; Gratings; Integrated circuit measurements; Monitoring; Optical noise; Programmable control; Sensor arrays; Signal to noise ratio; Wavelength division multiplexing; Wavelength measurement;
Conference_Titel :
Lasers and Electro-Optics Society, 2003. LEOS 2003. The 16th Annual Meeting of the IEEE
Print_ISBN :
0-7803-7888-1
DOI :
10.1109/LEOS.2003.1253018
