Patent ID: 7483453
Filing Date: 2009-01-27
Classification: H01S

Abstract:
1. A system comprising: a multisection diode laser with a plurality of sections that are drivable by control inputs to select a desired output mode from among a plurality of available output modes; a wavelength locker configured to lock the selected output mode to a target frequency, where the wavelength locker has a characteristic response period and there are at least two target frequencies in each response period of the wavelength locker; and a controller configured to (i) sweep the diode laser in a pre-determined frequency direction through a series of frequency points by asserting a pre-calibrated series of sets of control input values to the sections of the diode laser and (ii) use the wavelength locker to lock to each of the frequency points, wherein the controller is configured to obtain frequency points from cavity modes in a plurality of different supermodes, and to pre-determine the sets of control input values to take account of thermal transients that are known to arise from jumps in the output modes that occur when sweeping through the pre-calibrated series of sets of control input values in the pre-determined frequency direction.