MULTIWAVELENGTH FIBER LASER APPARATUS INCLUDING COUPLED CAVITIES AND OSCILLATION METHOD OF MULTIWAVELENGTH LASER

摘要

A multi-wave length laser device and an oscillation method of the multi-wave length laser are provided, which obtain single mode multi-wave length laser by suppressing oscillation of the side mode. A multi-wave length laser device comprises the combination oscillator, the semiconductor optical amplifier(130), the multi-wavelength filter(140), and the variable opto-coupler(180). The combination oscillator comprises the first resonator(110) and the connected second resonator(120). The combination oscillator reduces the optical signal of the side mode by oscillating the optical signal in the set frequency. The semiconductor optical amplifier produces the laser light signal. The multi-wavelength filter authorizes the optical signal generated by the semiconductor optical amplifier to the first resonator.