| abstract |
A broad spectrum laser for use in a MEMS laser scanning display device (200) is provided. The laser diode transmitter (202A) includes: a gain section (600) coupled to a first current or voltage source (604); and a tunable absorber section (602) coupled to a second current or voltage source (606) ; wherein the second current or voltage source (606) is configured to provide a drive current or voltage that sweeps over a range of values over a period of time to cause a shift in the wavelength of the laser diode emitter, at the wavelength The overall gain is maximized, causing the laser diode emitter to emit spectrally broadened light. |