Patent ID: 9252561
Filing Date: 2016-02-02
CPC Classification: G01J,G02F,H01S

Claim Text:
1. A mode locked waveguide laser system, comprising: a mode locked waveguide laser comprising a laser cavity having a waveguide, said mode locked waveguide laser system operably arranged as a frequency comb laser providing tunable comb spacing, tunable carrier envelope offset frequency, or both; an intra-cavity beam emitted from said waveguide; and a dispersion control unit (DCU) disposed in said cavity and in an optical path of said intra-cavity beam, wherein said laser cavity is configured in such a way that said intra-cavity beam is redirected to said waveguide after traversing at least said DCU, said DCU comprising a single optical element operably arranged to induce angular dispersion on said intra-cavity beam, wherein said DCU imparts angular dispersion, and group-velocity dispersion (GVD) to said intra-cavity beam during propagation in said cavity, and imparts a spatial chirp to said redirected beam, wherein said DCU is capable of producing net GVD in a range from a positive value to a negative value.