Title :
Channel selection and stabilization technique for a waveguide-type 16-channel frequency selection switch for optical FDM distribution systems
Author :
Oda, Kazuhiro ; Takato, Norio ; Kominato, Toshimi ; Toba, Hiromu
Author_Institution :
Transmission Syst. Lab., NTT, Kanagawa, Japan
fDate :
6/1/1989 12:00:00 AM
Abstract :
A channel selection and stabilization technique for a waveguide-type 16-channel frequency selection switch (FS-SW) was examined at the 1.5- mu m wavelength region. The desired channel could be selected from 16 optical channels with a 5-GHz channel separation. The frequency fluctuation width for the observed short period was 65-250 MHz, and the frequency drift during 30 min was 20-100 MHz. An average crosstalk level of less than -20 dB was successfully achieved in the on state of the FS-SW stabilization.<>
Keywords :
frequency division multiplexing; integrated optics; multiplexing equipment; optical communication equipment; optical switches; 1.5 micron; 20 to 100 MHz; 30 min; 65 to 250 MHz; channel selection; channel separation; crosstalk level; frequency drift; frequency fluctuation width; integrated optics; optical FDM distribution systems; optical channels; stabilization technique; waveguide-type 16-channel frequency selection switch; Chromium; Frequency; Optical crosstalk; Optical filters; Optical interferometry; Optical switches; Optical transmitters; Optical waveguides; Phase locked loops; Voltage-controlled oscillators;
Journal_Title :
Photonics Technology Letters, IEEE
