| 摘要 |
<p>A multiple wavelength light source (400) generates an output signal having a comb of accurately spaced apart frequencies with variable free spectral range in the C-band of optical fiber communication. The light source (400) employs an electro-optical modulator (EOM 408) driven by a signal generator which modulates with EOM (408) with multiple modulation frequencies to widen the output spectrum of signal. The EOM has a crystal provided with a waveguide. The waveguide may be doped with a rare-earth metal to impart gain properties to equalize the intensities of the comb.</p> |
