Dichroic Filter Laser Beam Combining

Abstract

Briefly, in accordance with one or more embodiments, a dichroic optic having a
first side and a second side opposite to the first side, wherein the second side
has an optical filter, wherein each of a light beam having a first wavelength, a
second wavelength and a third wavelength enter, exit or reflect from the
dichroic optic only from at least one of the first or second sides, wherein
prior to incidence on the dichroic optic each of the light beams having the
first, second and third wavelengths are non-collinear with each other, wherein
the light beam having the first wavelength and the light beam having the second
wavelength are substantially collinear within the dichroic optic, wherein the
optical filter has a response capable of transmitting at least one of the light
beam having the first wavelength and the light beam having the second
wavelength, while reflecting the light beam having the third wavelength, and
wherein the light beam having the first wavelength, the second wavelength, and
the third wavelength are combined in a substantially collinear manner.

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