| 摘要 |
<p>An optical mixer couples a plurality of lights to be controlled, each of which has a mutually different wavelength. An optical pulse generator generates an optical pulse from the coupled light, and an optical delay delays input optical pulse according to wavelength components included in the pulse and separates the pulse into plural optical pulses to thereby output those separated optical pulses. A measuring circuit measures the generating time interval between the separated optical pulses, and a control circuit receives the output from the pulse time difference measuring device and controls the wavelengths of the light sources so that the generating time interval is fixed to a predetermined value. <IMAGE></p> |
