Patent ID: 9559486
Date: 2017-01-31
CPC Classifications: G01S,H01S

Claim:
1. An apparatus comprising: a tunable laser having a plurality of drive inputs for affecting an optical frequency of light output by the laser, wherein the plurality of drive inputs have a corresponding plurality of different frequency response bands for changing optical properties of the tunable laser and a corresponding plurality of actuation ranges of optical frequencies affected; a frequency sweep generator configured to drive at least one drive input of the plurality of drive inputs with a sweep signal that causes the tunable laser to output light with a time dependent optical frequency or phase spanning at least 1 gigaHertz of optical frequency bandwidth; an optical detector; a plurality of optical paths configured to direct light output by the laser onto the optical detector; and a laser controller configured to provide a plurality of inputs to the plurality of drive inputs, each input of the plurality of inputs based on a detector signal output from the optical detector and a corresponding frequency response band of the plurality of different frequency response bands and a corresponding actuation range of the plurality of actuation ranges.