摘要:
The present invention relates to a super continuum light source comprising a pump source arranged to emit light having a center wavelength λcenter arranged to provide pump pulse to a generator fiber, where the refractive index profile of the core is arranged to allow modal cleaning of the light is it propagates, such as via stimulated Raman scattering. An example of invention is the application of a relatively high power pump laser utilized to provide an optical super continuum with relatively high spectral density and/or good beam quality even though the pump laser may provide a beam with a high M2.
摘要:
The present invention relates to a super continuum light source comprising a pump source arranged to emit light having a center wavelength λcenter arranged to provide pump pulse to a generator fibre, where the refractive index profile of the core is arranged to allow modal cleaning of the light is it propagates, such as via stimulated Raman scattering. An example of invention is the application of a relatively high power pump laser utilized to provide an optical super continuum with relatively high spectral density and/or good beam quality even though the pump laser may provide a beam with a high M2.
摘要:
A method of generating supercontinuum optical radiation, the method comprising: (a) providing an optical waveguide (22), said optical waveguide exhibiting a dispersion characteristic of guided optical radiation, said dispersion characteristic comprising: (i) a first dispersion parameter (β21) at a first wavelength (λ1), (ii) a second dispersion parameter (β22) at a second shorter wavelengths (λ2), and (iii) a zero-dispersion parameter at a wavelength in between said first and said second shorter wavelengths; said optical waveguide further comprising at least one entrance for receiving optical radiation, and at least one exit for emitting guided optical radiation; (b) applying at least two laser radiation of said first (25) wavelength, (λ1) at a first power (P1) and applying laser radiation of said second (26) shorter wavelength (λ2) at a second power (P2) into said optical waveguide, said laser radiations at least partially overlapping between said at least one entrance and said at least one exit of said optical waveguide; and (c) phase-matching said applied laser radiations by adjusting said first and second powers; a supercontinuum optical radiation source; and use thereof.
摘要:
A method of generating supercontinuum optical radiation, the method comprising: (a) providing an optical wave-guide (22), said optical waveguide exhibiting a dispersion characteristic of guided optical radiation, said dis-persion characteristic comprising: (i) a first dispersion parameter (β21) at a first wavelength (λ1), (ii) a second dispersion parameter (β22) at a second shorter wavelengths (λ2), and (iii)a zero-dispersion parameter at a wavelength in between said first and said second shorter wavelengths; said optical waveguide further comprising at least one entrance for receiving optical radiation, and at least one exit for emitting guided optical radiation; (b) applying at least two laser radiation of said first (25) wavelength, (λ1) at a first power (P1) and applying laser radiation of said second (26) shorter wavelength (λ2) at a second power (P2) into said optical waveguide, said laser radiations at least partially overlapping between said at least one entrance and said at least one exit of said optical waveguide; and (c) phase-matching said applied laser radiations by adjusting said first and second powers; a supercontinuum optical radiation source; and use thereof.