Patent ID: 11899232
Assignee: ADVALUE PHOTONICS, INC.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. 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.