Patent ID: 9197326
Filing Date: 2015-11-24
Classification: H01S,H04B,H04J

Abstract:
1. A wavelength comb generator device comprising: a single mode semiconductor laser having a relaxation oscillation frequency, a biasing circuit that provides a DC bias current, an RF signal generator that generates an RF signal at a frequency within 25% of the relaxation oscillation frequency of the single mode semiconductor laser, and a drive circuit that combines the generated RF signal with the DC bias current to provide a drive current that is a combination of the RF signal and DC bias current, the drive circuit coupled to supply the drive current to a gain section of the laser to cause the gain section to lase and provide a frequency-domain, phase-coherent, comb output, and an optical splitter positioned to separate individual frequencies of an output from the laser to provide a plurality of outputs from the laser device.