Patent ID: 7327957
Filing Date: 2008-02-05
Classification: H04B,H04J

Abstract:
1. A method, comprising: outputting a wide-band light that includes a spontaneous emission; filtering the wide-band light to generate a first narrow-band light signal that includes the spontaneous emission; externally injecting the first narrow-band light signal into a first light source capable of modulation; locking an output wavelength emitted by the first light source capable of modulation within the bandwidth of the injected first narrow-band light signal; separating the output wavelength emitted by the first light source capable of modulation from the first narrow-band light signal injected into the first light source capable of modulation; filtering the wide-band light to generate a second narrow-band light signal that has center wavelength different that the first narrow-band light signal; externally injecting the second narrow-band light signal into a second light source capable of modulation; locking an output wavelength emitted by the second light source capable of modulation within the bandwidth of the injected second narrow-band light signal; and separating the output wavelength emitted by the second light source capable of modulation from the second narrow-band light signal injected into the second light source capable of modulation.