Photonic devices based on conical refraction
AssigneeUniversity of Dundee
InventorsEdik Rafailov, Amin Abdolvand, Todor Kalkandjiev
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Abstract
An optical system (31) with an input optical source (33) for projecting an input beam along an optical axis and an optical element (37, 43) which creates a cone refracted beam (41) from the input beam (35) then reconstructs the input beam (49). The optical element may comprise a first cone refractive element (37) which creates a cone refracted beam and reconstructs the beam using a reconstructing optical element (43) to apply a phase shift to the cone refracted beam. The optical system may be used to form a laser or a gain medium for a laser.
Claims20
An optical system comprising:
- an input optical source configured for projecting an input beam along an optical axis, wherein the input beam has a Gaussian beam profile;
- and an optical element having a first cone refracted element configured to create a cone refracted beam from the input beam, wherein the optical element is arranged to reconstruct the cone refracted bean using a reconstructing optical element configured to apply a phase shift to the cone refracted beam such that the reconstructed beam has substantially the same Gaussian beam profile as the input beam.
A gain medium for a laser comprising:
- a first cone refractive element configured to create a cone refracted beam from an input beam, wherein the input beam has a Gaussian beam profile;
- and
- a reconstructing optical element comprising any one of a reflector, a second cone refractive element, or a combination of a reflector and a second cone refractive element;
- wherein the reconstructing optical element is configured to apply a phase shift to the cone refracted beam to reconstruct the cone refracted beam such that the reconstructed beam has substantially the same Gaussian beam profile as the input beam.
A laser comprising:
- a gain medium having:
- a first cone refractive element configured to create a cone refracted beam from an input beam, wherein the input beam has a Gaussian beam profile;
- and
- a reconstructing optical element comprising any one of a reflector, a second cone refractive element, or a combination of a reflector and a second cone refractive element;
- wherein the reconstructing optical element is configured to apply a phase shift to the cone refracted beam to reconstruct the cone refracted beam such that the reconstructed beam has substantially the same Gaussian beam profile as the input beam.
Dependencies are inferred from the claim text.