Components and tools for polarization-maintaining fiber optics

Tools for quantum optics : Pulsed polarization - maintaining Er - doped fiber laser and spatial mode manipulation in spontaneous parametric downconversion

Two separate projects were undertaken to improve technology for entangled photon sources, useful for quantum optics. In one project, a pulsed, mode-locked erbium-doped fiber laser, designed to be used as a seed laser for a 390 nm source, was built using polarization-maintaining components to address polarization drift. The fiber laser operated at a center wavelength of 1560.0 nm with an output ...

Polarization-maintaining fiber-optic-grating vector vibroscope.

A fiber-optic vector vibroscope based on orthogonal polarization cladding-to-core recoupling is demonstrated. A compact structure in which a short section of polarization-maintained (PM) fiber stub containing a straight fiber Bragg grating (FBG) is spliced to another single-mode fiber. Two well-defined orthogonally polarized cladding modes reflected by the PM-FBG are recoupled at the junction a...

Self - starting all - polarization maintaining Yb - fiber laser with a polarization maintaining anomalous dispersion higher - order - mode fiber

Distributed Strain and Temperature Discrimination in Unaltered Polarization Maintaining Fiber

A Rayleigh scatter-based distributed measurement technique is presented in which strain and temperature discrimination is achieved using standard polarization maintaining fiber as the sensor. High-sensitivity Optical Frequency Domain Reflectometry is used to measure the scatter.

Distributed Polarization X-talk Measurement for the production of Polarization-Maintaining Fiber Coils

This note introduces the use of distributed polarization x-talk measurement for raw polarization maintaining fiber (PMF) quality inspection, PMF coil winding process monitoring, PMF coil adhesive curing and stress release monitoring, overall PMF coil quality inspection, and temperature induced stress determination. PMF birefringence temperature variation can also be precisely measured. The use ...