Patent ID: 9298023
Filing Date: 2016-03-29
CPC Classification: G02B,G02F,H01S

Claim Text:
1. A method for tuning a transmitter to a selected wavelength comprising: selecting a laser having the selected wavelength within a tunable range thereof from an array of tunable lasers; tuning the selected laser to the selected wavelength; tuning an index of refraction of one of a first prism and a second prism, the first prism positioned to receive an output of the selected laser and the second prism positioned to receive an output of the first prism and to at least partially reverse an angular shift in the output of the first prism relative to the output of the selected laser, an output of the second prism being incident on an optical spectrum reshaper; driving a temperature of the optical spectrum reshaper to an operating temperature at which a transmission function of the optical spectrum reshaper has a transmission edge corresponding to the selected wavelength; frequency modulating the selected laser such that the output of the selected laser is frequency modulated; and transmitting the output of the selected laser through the optical spectrum reshaper configured to at least partially convert frequency modulation in the output of the selected laser to amplitude modulation.