Patent ID: 8831052
Filing Date: 2014-09-09
Classification: H01S

Abstract:
1. An apparatus for generating a short-pulse laser using a temporally modulated sideband gain, comprising: at least one pulse driver modulator; a laser diode, having one end connected to the pulse driver modulator, and having a nanosecond pulse repetition rate and a pulse width of a programmable semiconductor optical output; an external reflector, having one input end connected to one output end of the laser diode; and a wavelength filter, having one end connected to one output end of the external reflector, wherein the laser diode outputs a long-pulse laser signal having a first wavelength pulse, and a sideband of the first wavelength pulse is reflected via the external reflector to the laser diode to form a second wavelength pulse, and the second wavelength pulse falls within a retrieval period in which the laser diode is turned off to form a second wavelength picosecond short pulse due to a time difference that the external reflector reflected the sideband of the first wavelength pulse, and then the second wavelength picosecond short pulse is filtered by the wavelength filter to generate a single short-pulse laser signal having the second wavelength pulse.