INTEGRATED HIGH-POWER TUNABLE LASER WITH ADJUSTABLE OUTPUTS

摘要

A tunable laser that includes an array of parallel optical amplifiers is described. The laser may also include an intracavity NxM coupler that couples power between a cavity mirror and the array of parallel optical amplifiers. Phase adjusters in optical paths between the NxM coupler and the optical amplifiers can be used to adjust an amount of power output from M- 1 ports of the NxM coupler. A tunable wavelength filter is incorporated in the laser cavity to select a lasing wavelength.