Patent ID: 7230963

Claim:
A method for wavelength stabilization in a monolithic laser system, comprising: at a laser, generating a laser signal; at a waveguide splitter monolithically formed with the laser, dividing the laser signal into a first signal portion and a second signal portion; at a first resonator monolithically formed with the splitter and tuned to a first wavelength, filtering the first signal portion to generate a filtered first signal; at a second resonator monolithically formed with the splitter and tuned to a second wavelength, filtering the second signal portion to generate a filtered second signal; at a first photodiode monolithically formed with the first resonator, generating a first photocurrent from the filtered first signal; at a second photodiode monolithically formed with the second resonator, generating a second photocurrent from the filtered second signal; determining using at least one of the first photo current and the second photocurrent whether the laser signal has a desired wavelength; and altering the laser signal wherein generating a laser signal comprises generating a laser signal in a laser comprising a first waveguide having a gain region formed therein for amplifying at least a first mode of light propagating primarily in the first waveguide, and second waveguide for guiding primarily a second mode of light, the first mode of light and the second mode of light having different effective indices of refraction and divided unevenly between the first waveguide and the second waveguide where the first waveguide and the second waveguide overlap.