VERY HIGH SPEED MULTI-WAVELENGTH LASER DEVICE USING SAMPLED OPTICAL FIBER GRATING

摘要

PROBLEM TO BE SOLVED: To provide a semiconductor-optical fiber laser device of a new form capable of simultaneously oscillating plural wavelengths at a very high speed to be used as a light source for a very high speed optical signal processing and the light source for optical communication. SOLUTION: The constituting element of an active mode locking SFRL is constituted of a variable output optical fiber coupler for changing and coupling the output of an optical fiber, a polarization controller for controlling the polarization of the optical fiber, an optical intensity modulator 30 for modulating the intensity of the optical fiber by utilizing lithium niobate, an optical isolator 40 for transmitting an optical wavelength, a semiconductor optical amplifier(SOA) 50 for amplifying the optical wavelength of a semiconductor- optical fiber, an optical circulator 60 for purifying a sampled optical fiber grating and the sampled optical fiber grating(SFG) 60a.