Abstract: Optical apparatus and methods of manufacture thereof An optical apparatus (20) for evanescently coupling an optical signal across an (interface (30) is described. The optical apparatus (20) comprises a first substrate (22) and a second substrate (24). The optical signal is evanescently coupled between a first waveguide (26) formed by laser inscription of the first substrate (22) and a second waveguide (28) of the second substrate (22). The first waveguide (26) comprises a curved section (34) configured to provide evanescent coupling of the optical signal between the first and second waveguides (26, 28) via the interface (30).
Type:
Grant
Filed:
February 27, 2019
Date of Patent:
August 16, 2022
Assignee:
OPTOSCRIBE LIMITED
Inventors:
Nicholas D. Psaila, Anthony Traynor, Rowan Pocock, Paul Mitchell, Graeme Brown, Mark Hesketh
Abstract: A method of forming an optical device in a body (32), comprises performing a plurality of laser scans (34,36) to form the optical device, each scan comprising relative movement of a laser beam and the body thereby to scan the laser beam along a respective path (34a, 34b 34f; 36a, 36b 36f) through the body to alter the refractive index of material of that path, wherein the paths are arranged to provide in combination a route for propagation of light through the optical device in operation that is larger in a direction substantially perpendicular to the route for propagation of light than any one of the paths individually.
Type:
Grant
Filed:
February 1, 2019
Date of Patent:
September 28, 2021
Assignee:
Optoscribe Limited
Inventors:
Nicholas D. Psaila, Ajoy Kumar Kar, Henry Thomas Gibson Bookey, Robert R. Thomson, Graeme Brown
Abstract: Optical apparatus comprises: a body comprising material; a plurality of optical elements formed of the material of the body; and a plurality of alignment holes formed in the material of the body, wherein: the alignment holes comprise fibre or other waveguide alignment holes aligned with one or more of the optical elements, and/or the alignment holes comprise alignment holes configured to receive mechanical elements for fixing and/or aligning the body to at least one further body.
Abstract: An optical apparatus 20 for evanescently coupling an optical signal across an interface 30 is described. The optical apparatus 20 comprises a first substrate 22 and a second substrate 24. The optical signal is evanescently coupled between a first waveguide 26 formed by laser inscription of the first substrate 22 and a second waveguide 28 of the second substrate 22. The first waveguide 26 comprises a curved section 34 configured to provide evanescent coupling of the optical signal between the first and second waveguides 26, 28 via the interface 30.
Type:
Grant
Filed:
June 12, 2018
Date of Patent:
June 30, 2020
Assignee:
OPTOSCRIBE LIMITED
Inventors:
Nicholas D. Psaila, Anthony Traynor, Rowan Pocock, Paul Mitchell, Graeme Brown, Mark Hesketh
Abstract: A method of forming an optical device in a body (32), comprises performing a plurality of laser scans (34,36) to form the optical device, each scan comprising relative movement of a laser beam and the body thereby to scan the laser beam along a respective path (34a, 34b 34f; 36a, 36b 36f) through the body to alter the refractive index of material of that path, wherein the paths are arranged to provide in combination a route for propagation of light through the optical device in operation that is larger in a direction substantially perpendicular to the route for propagation of light than any one of the paths individually.
Type:
Grant
Filed:
June 10, 2011
Date of Patent:
February 18, 2020
Assignee:
Optoscribe Limited
Inventors:
Nicholas D Psaila, Ajoy Kumar Kar, Henry Thomas Gibson Bookey, Robert R Thomson, Graeme Brown