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US 6,221,565 B1Granted
Tunable bragg gratings and devices employing the same
AssigneeUniversity of New Mexico
InventorsRavinder Jain, Balaji Srinivasan
Life of this patent
Estimating the term…
Abstract
The present invention relates generally to electro-optically active waveguide segments, and more particularly to the use of a selective voltage input to control the phase, frequency and/or amplitude of a propagating wave in the waveguide. Particular device structures and methods of manufacturing are described herein.
Claims51
A method for manufacturing an electro-optic waveguide segment having a core and a cladding;
- the method comprising the steps of:
- removing a first selective portion of said cladding to form a first recess within said cladding, the first recessed cladding region having an outer dimension which is less than an unmodified section of said cladding;
- depositing a first electrically conductive material within said first recess by vapor deposition or sputtering and in direct contact with a bottom of said first recess, thereby forming a first electrode;
- placing said waveguide segment on a second electrically conductive material;
- said first and second electrically conductive materials not being in direct contact;
- and
- poling said waveguide segment using at least a electric field applied to said first electrode to induce a non-linearity in said waveguide segment.
4 more elements
A method for manufacturing an electro-optic waveguide segment having a core and a cladding;
- the method comprising the steps of:
- removing a first selective portion of said cladding to form a first recess within said cladding, the first recessed cladding region having an outer dimension which is less than an unmodified section of said cladding;
- depositing a first electrically conductive material within said first recess by vapor deposition or sputtering, thereby forming a first electrode;
- placing said waveguide segment on a second electrically conductive material;
- said first and second electrically conductive materials not being in direct contact;
- and
- poling said waveguide segment using ultraviolet light injected into said waveguide segment.
4 more elements
A method for manufacturing an electro-optic waveguide segment having a core and a cladding;
- the method comprising the steps of:
- removing a first selective portion of said cladding to form a first recess within said cladding, the first recessed cladding region having an outer dimension which is less than an unmodified section of said cladding;
- depositing a first electrically conductive material within said first recess by vapor deposition or sputtering, thereby forming a first electrode;
- placing said waveguide segment on a second electrically conductive material;
- said first and second electrically conductive materials not being in direct contact;
- and
- poling said waveguide segment by heating said waveguide segment combined with ultraviolet light injected into said waveguide.
4 more elements
A method for manufacturing an electro-optic waveguide segment having a core and a cladding;
- the method comprising the steps of:
- removing a first selective portion of said cladding to form a first recess within said cladding, the first recessed cladding region having an outer dimension which is less than an unmodified section of said cladding;
- depositing a first electrically conductive material within said first recess by vapor deposition or sputtering and in direct contact with a bottom of said first recess, thereby forming a first electrode;
- removing a second selective portion of said cladding to form a second recess within said cladding, the second recessed cladding region having an outer dimension which is less than an unmodified section of said cladding, said first and second recesses not contacting one-another;
- depositing a second electrically conductive material within said second recess by vapor deposition or sputtering in direct contact with the deepest portion of said second recess, thereby forming a second electrode;
- and
- poling said waveguide segment using at least a electric field applied to either said first or second electrode to induce an non-linearity in said waveguide segment.
4 more elements
A method for manufacturing an electro-optic waveguide segment having a core and a cladding;
- the method comprising the steps of:
- removing a first selective portion of said cladding to form a first recess within said cladding, the first recessed cladding region having an outer dimension which is less than an unmodified section of said cladding;
- depositing a first electrically conductive material within said first recess by vapor deposition or sputtering, thereby forming a first electrode;
- removing a second selective portion of said cladding to form a second recess within said cladding, the second recessed cladding region having an outer dimension which is less than an unmodified section of said cladding, said first and second recesses not contacting one-another;
- depositing a second electrically conductive material within said second recess by vapor deposition or sputtering, thereby forming a second electrode;
- and
- poling said waveguide segment using ultraviolet light injected into said waveguide segment.
4 more elements
A method for manufacturing an electro-optic waveguide segment having a core and a cladding;
- the method comprising the steps of:
- removing a first selective portion of said cladding to form a first recess within said cladding, the first recessed cladding region having an outer dimension which is less than an unmodified section of said cladding;
- depositing a first electrically conductive material within said first recess by vapor deposition or sputtering, thereby forming a first electrode;
- removing a second selective portion of said cladding to form a second recess within said cladding, the second recessed cladding region having an outer dimension which is less than an unmodified section of said cladding, said first and second recesses not contacting one-another;
- depositing a second electrically conductive material within said second recess by vapor deposition or sputtering, thereby forming a second electrode;
- and
- poling said waveguide segment by heating said waveguide segment in combination with ultraviolet light injected into said waveguide segment to induce an non-linearity in said waveguide segment.
4 more elements
A method for manufacturing an electro-optic waveguide segment having a core and a cladding;
- the method comprising the steps of:
- forming a Bragg grating in said waveguide segment;
- removing a first selective portion of said cladding above at least a portion of said Bragg grating to form a first recess within said cladding, the first recessed cladding region having an outer dimension which is less than an unmodified section of said cladding;
- depositing a first electrically conductive material within said first recess and in direct contact with a bottom of said first recess by vapor deposition or sputtering, thereby forming a first electrode;
- removing a second selective portion of said cladding to form a second recess within said cladding, the second recessed cladding region having an outer dimension which is less than an unmodified section of said cladding, said first and second recesses not contacting one-another;
- depositing a second electrically conductive material within said second recess and in direct contact with the deepest portion of said second recess by vapor deposition or sputtering, thereby forming a second electrode;
- and
- poling said waveguide segment using at least a electric field applied to either said first or second electrode to induce a non-linearity in said waveguide segment.
5 more elements
A method for manufacturing an electro-optic waveguide segment having a core and a cladding;
- the method comprising the steps of:
- forming a Bragg grating in said waveguide segment;
- removing a first selective portion of said cladding above at least a portion of said Bragg grating to form a first recess within said cladding, the first recessed cladding region having an outer dimension which is less than an unmodified section of said cladding;
- depositing a first electrically conductive material within said first recess b vapor deposition or sputtering, thereby forming a first electrode;
- removing a second selective portion of said cladding to form a second recess within said cladding, the second recessed cladding region having an outer dimension which is less than an unmodified section of said cladding, said first and second recesses not contacting one-another;
- depositing a second electrically conductive material within said second recess by vapor deposition or sputtering, thereby forming a second electrode;
- and
- poling said waveguide segment using ultraviolet light injected into said waveguide segment to induce a non-linearity in said waveguide.
5 more elements
A method for manufacturing an electro-optic waveguide segment having a core and a cladding;
- the method comprising the steps of:
- forming a Bragg grating in said waveguide segment;
- removing a first selective portion of said cladding above at least a portion of said Bragg grating to form a first recess within said cladding, the first recessed cladding region having an outer dimension which is less than an unmodified section of said cladding;
- depositing a first electrically conductive material within said first recess by vapor deposition or sputtering, thereby forming a first electrode;
- removing a second selective portion of said cladding to form a second recess within said cladding, the second recessed cladding region having an outer dimension which is less than an unmodified section of said cladding, said first and second recesses not contacting one-another;
- depositing a second electrically conductive material within said second recess by vapor deposition or sputtering, thereby forming a second electrode;
- and
- poling said waveguide segment by heating said waveguide segment in combination with ultraviolet light injected into said waveguide segment to induce a non-linearity in said waveguide segment.
5 more elements
A method for manufacturing an electro-optic waveguide segment having a core and a cladding;
- the method comprising the steps of:
- removing a first selective portion of said cladding to form a first recess within said cladding, the first recessed cladding region having an outer dimension which is less than an unmodified section of said cladding;
- removing a second selective portion of said cladding to form a second recess within said cladding, said second selective portion having an outer dimmension which is less than an unmodified section of said cladding, said first and second selected portions not contacting one-another;
- depositing electrically conductive material in said first and second recesses by vapor deposition or sputtering;
- and
- forming a Bragg grating in said waveguide segment.
3 more elements
An electro-optic waveguide segment having a core and a cladding, comprising:
- a first recess within said cladding;
- a second recess within said cladding, said first and second recesses not contacting one another;
- a first electrically conductive material deposited in said first recess by vapor deposition or sputtering;
- a second electrically conductive material deposited in said second recess by vapor deposition or sputtering;
- and
- a Bragg grating disposed in said waveguide segment.
3 more elements
An electro-optic waveguide segment having a core and a cladding, comprising:
- a first recess within said cladding;
- a second recess within said cladding, said first and second recesses not contacting one-another;
- a first electrically conductive material deposited in said first recess by vapor deposition or sputtering and in direct contact with the deepest portion of said first recess;
- a second electrically conductive material deposited in said second recess by vapor deposition or sputtering and in direct contact with the deepest portion of said second recess;
- and
- a non-linearity in said waveguide.
3 more elements
An electro-optic waveguide segment having a core and a cladding, comprising:
- a first recess within said cladding;
- a second recess within said cladding, said first and second recesses not contacting one-another;
- a first electrically conductive material deposited in said first recess by vapor deposition or sputtering;
- a second electrically conductive material deposited in said second recess by vapor deposition or sputtering;
- and
- a Bragg grating disposed in said waveguide segment, wherein said electro-optic waveguide is poled to induce a non-linearity in said waveguide.
3 more elements
Dependencies are inferred from the claim text.