Patent ID: 7561809
Filing Date: 2009-07-14
Classification: H04B

Abstract:
1. An integrated laser device comprising: a) pre-distortion circuit fabricated on a monolithic substrate having an input that receives an electrical modulation signal, the pre-distortion circuit generating a pre-distorted modulation signal at an output from the electrical modulation signal; and b) a laser fabricated on the monolithic substrate in close proximity to the pre-distortion circuit, the laser having an electrical modulation input that is connected to the output of the pre-distortion circuit so that an input impedance of the electrical modulation input of the laser is substantially matched to an output impedance of the pre-distortion circuit, the laser modulating an optical signal with the pre-distorted modulation signal, wherein the pre-distorted modulation signal causes at least some vector cancellation of distortion signal generated when the laser modulates the optical signal.