Title :
Fiber-grating sensor for wavelength tracking in single-fiber WDM access PONs
Author :
Giles, Randy ; Jiang, Song
Author_Institution :
Lucent Technol., AT&T Bell Labs., Holmdel, NJ, USA
fDate :
4/1/1997 12:00:00 AM
Abstract :
A fiber-grating at the remote node of a single-fiber WDM passive optical network was used as a temperature sensor to track thermally-induced changes in a WDM router and derive an error signal that could be used for control of the transmitter source wavelengths to optimize network performance. The tracking method could also compensate for wavelength drift at the transmitter. We demonstrated a one-way optical power budget allowing greater than 20-km distance between the central office and remote node.
Keywords :
compensation; diffraction gratings; fibre optic sensors; optical fibre networks; optical fibre subscriber loops; optical fibres; optical tracking; optical transmitters; telecommunication network routing; wavelength division multiplexing; 20 km; WDM router; central office; error signal; fiber-grating sensor; one-way optical power budget; remote node; single-fiber WDM access PON; single-fiber WDM passive optical network; thermally-induced changes; transmitter source wavelength control; transmitter wavelength drift compensation; wavelength tracking; Error correction; Optical control; Optical fiber networks; Optical fiber sensors; Optical transmitters; Passive optical networks; Temperature control; Temperature sensors; WDM networks; Wavelength division multiplexing;
Journal_Title :
Photonics Technology Letters, IEEE
