Patent ID: 8923349

Claim:
A tunable laser, comprising: a. a swept light source that amplifies light by stimulated emission of radiation, the swept light source including a tunable optical wavelength selective filter, the tunable optical wavelength selective filter configured to adjust an optical wavelength of the swept light source as a function of time in response to a non-sinusoidal selective filter control signal; b. a light measurement device, coupled to the swept light source, the light measurement device configured to receive the optical wavelength of the swept light source as an input and to determine a measured parameter as an output; and c. an electronic processing device coupled to the light measuring device, the electronic processing device configured to receive the measured parameter as an input and to generate the non-sinusoidal selective filter control signal as an output, wherein the swept light source is a Fourier Domain Mode Locking (FDML) laser.