PUMPED SUPERCONTINUUM LIGHT SOURCE BASED ON TUNABLE PULSE OPTICAL FIBER LASER

摘要

Provided are a high-power tunable pulse optical fiber laser and a supercontinuum light source pumped by the high-power tunable pulse optical fiber laser. The high-power tunable pulse optical fiber laser sequentially comprises in the light path direction: a tunable passive mode-locked optical fiber laser (1) utilizing an optical fiber non-linear effect, a wideband optical fiber coupler (3), a power pre-amplification stage (6) and a power main amplification stage (11). The output end of the high-power tunable pulse optical fiber laser is coupled to a photonic crystal optical fiber, a zero dispersion wavelength being in a pump laser gain zone of the photonic crystal optical fiber, or to a highly non-linear fiber optic light supercontinuum producing optical fiber (13), achieving a precise match of the pump laser with the zero dispersion wavelength of the supercontinuum producing optical fiber (13), thus obtaining a highly flat broadband supercontinuum light source. The high-power tunable pulse optical fiber laser and the supercontinuum light source pumped by the same have a simple structure, enable convenient tuning of the pump laser wavelength, have low cost and are all-optical fiber, and can be applied in the fields of biomedicine, remote sensing, environmental monitoring, multi-channel optical fiber communication and spectroscopy.