| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To detect the loss of a dispersion compensation fiber in an optical amplifier module. <P>SOLUTION: An optical amplifier module has: a first optical amplifier to amplify main signal light to be supplied to a dispersion compensation fiber (DCF); a second optical amplifier to amplify the main signal light supplied from the DCF; a monitoring light generating part to generate monitoring light having a wavelength longer than a wavelength of the main signal light; a multiplexing part to multiplex the monitoring light generated by the monitoring light generating part and the main signal light to be supplied to the DCF; a demultiplexing part to demultiplex the monitoring light from the main signal light supplied from the DCF; and a light intensity detection part to detect a light intensity of the monitoring light demultiplexed by the demultiplexing part. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
