VARIABLE WAVELENGTH CONTINUOUS OUTPUT RAMAN LASER

摘要

PURPOSE:To easily emit the variable wave length continuous output light by a method wherein the quartz base light fiber is used as the Raman light emitting medium and the emitted light is pumped by means of the continuous output light laser from outside. CONSTITUTION:The luminous intensity of the output light from the light pumping laser light source 11 is controlled through the variable attenuator 20 and the output light from the attenuator 20 is focussed by the lens 21. Then the focussed lights is input into the multiple winding, long and low loss quartz base fiber 22 with the small core radius to emit the output light as the plane light. Moreover, the wavelength of the output light from the light fiber 22 can be easily changed by means of changing the luminous intensity of the input light into the light fiber 22 by changing the attenuation factor by the variable attenuator 22 because the higher order Stokes' light is successively emitted in proportion to the luminous intensity in the Raman phoenomena.