Title :
Smart dynamic wavelength equalizer based on an integrated planar optical circuit for use in the 1550-nm region
Author :
Schiffer, P.M.J. ; Doerr, C.R. ; Stulz, L.W. ; Cappuzzo, M.A. ; Laskowski, E.J. ; Paumescu, A. ; Gomez, L.T. ; Gates, J.V.
Author_Institution :
Bell Labs., Lucent Technol., Holmdel, NJ, USA
Abstract :
A microprocessor-controlled dynamic wavelength equalizer is presented. Th subsystem is based on an integrated optical circuit made in silica and covers a large portion of the usable region of the electromagnetic spectrum for optical fiber transmission (1530-1565 nm). The chip is connected in a software-controlled feedback loop, and with its dynamic range of /spl sim/7 dB for each channel, the system is capable of flattening the spectral response of an erbium-doped fiber amplifier to within 0.35-dB peak-to-peak. Insertion loss equals /spl sim/8 dB.
Keywords :
active filters; equalisers; intelligent structures; optical communication equipment; optical feedback; optical fibre amplifiers; optical losses; optical phase shifters; optical planar waveguides; optical waveguide filters; wavelength division multiplexing; 1530 to 1565 nm; 1550 nm; 8 dB; Insertion loss; SiO/sub 2/; Smart dynamic wavelength equalizer; dynamic range of; electromagnetic spectrum; erbium-doped fiber amplifier; integrated optical circuit; integrated planar optical circuit; microprocessor-controlled dynamic wavelength equalizer; optical fiber transmission; software-controlled feedback loop; spectral response; subsystem; Circuits; Dynamic range; Electromagnetic spectrum; Equalizers; Erbium-doped fiber amplifier; Feedback loop; Integrated optics; Optical feedback; Optical fibers; Silicon compounds;
Journal_Title :
Photonics Technology Letters, IEEE
