Title :
WDM channel wavelength monitoring by periodically modulating the AWG temperature
Author :
Kim, Sang-Yuep ; Han, Sang-Hoon ; Lee, Jae-Seung
Author_Institution :
Dept. of Electron. Eng., Kwangwoon Univ., Seoul, South Korea
Abstract :
We have presented a simultaneous WDM channel wavelength monitoring method by periodically modulating the arrayed waveguide grating (AWG) temperature. This method provides crossover-wavelengths with very small attenuations compared with adjacent transmission peaks. Thus the monitoring error owing to the ASE can be decreased substantially. Moreover, one WDM channel can be monitored using one AWG output port enabling the use of standard AWGs. The temperature modulated AWG can work also as a multi-channel wavelength locker as well as the multi-channel wavelength monitor.
Keywords :
arrayed waveguide gratings; monitoring; optical modulation; superradiance; telecommunication channels; wavelength division multiplexing; ASE; AWG output port; AWG temperature; WDM channel; WDM channel wavelength monitoring; adjacent transmission peaks; arrayed waveguide grating temperature modulation; crossover-wavelengths; monitoring error; multi-channel wavelength locker; multi-channel wavelength monitor; periodically modulating; temperature modulated AWG; very small attenuations; Arrayed waveguide gratings; Bandwidth; Distributed feedback devices; Monitoring; Optical noise; Power generation; Signal to noise ratio; Temperature; Wavelength division multiplexing; Wavelength measurement;
Conference_Titel :
Optical Fiber Communication Conference and Exhibit, 2002. OFC 2002
Print_ISBN :
1-55752-701-6
DOI :
10.1109/OFC.2002.1036692
