Fabrication and use of all-optical-fiber polarizer
AssigneeAdValue Photonics, Inc.
InventorsJihong Geng, Shibin Jiang
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Abstract
Method for fabricating of all-optical-fiber based optical polarizer devoid of fusing of first and second optical fibers. The method includes a process of forming a substantially adiabatic optical fiber taper by pulling an optical fiber and interrupting this process when an optical power parameter measured at an output of the optical fiber is reduced below a pre-defined threshold as a result of said pulling. An optically-tapered single-mode polarization-maintaining optical fiber element fabricated according to the method and configured as such all-optical-fiber polarizer.
Claims14
A method for fabricating an all-optical-fiber polarizer, the method comprising:
- while forming a substantially adiabatic optical fiber taper by pulling a single-mode polarization-maintaining optical fiber (SMPMF) element,
- launching into the SMPMF element first light with a first vector of a first linear polarization substantially aligned along a slow axis of the SMPMF element and second light with a second vector of a second linear polarization substantially aligned along a fast axis of the SMPMF element to form first and second fundamental spatial fiber modes propagating in a fiber core of the SMPMF element;
- and
- interrupting said forming the substantially adiabatic optical fiber taper when an optical power parameter measured at an output of the SMPMF element is reduced below a pre-defined threshold as a result of said pulling, to form a tapered SMPMF element configured as said all-optical-fiber polarizer.
Dependencies are inferred from the claim text.