Patent ID: 6327287
Filing Date: 2001-12-04
Classification: H01L,H01S

Abstract:
A tunable semiconductor laser assembly, comprising:a laser including a seal surface of the laser, first and second reflective members, upper and lower confining regions of opposite semiconductor material and a semiconductor active region positioned between the upper and lower confining regions of opposite type semiconductor material, wherein the first and second reflective members are positioned at opposing edges of the active and confining regions;a seal cap including a seal ring, wherein the seal cap seal ring is coupled to the seal surface to form a hermetic seal of the seal cap to at least a portion of the laser;a wavelength tuning member coupled to the laser;a temperature sensor coupled to the laser; anda control loop coupled to the temperature sensor and the tuning member, wherein in response to a detected change in temperature the control loop sends an adjustment signal to the tuning member and the tuning member adjusts a voltage or current supplied to the laser to provide a controlled frequency and power of an output beam.