TIA-455-192:1999 (R2013)

$23.40

FOTP-192 H-Parameter Test Method for Polarization-Maintaining Optical Fiber

Published By	Publication Date	Number of Pages
TIA	1999	22

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Description

Introduction

Intent

This Standard specifies a method of measuring the h-parameter of
single mode, highly linearly birefringent optical fiber (commonly
called polarization-maintaining fibers).

In the case of fibers having connectors attached to one or both
ends, or for two or more such fibers joined in series, the
polarization crosstalk is a more meaningful measure of performance
than the h-parameter. The test method for measuring polarization
crosstalk is the subject of FOTP-193.

In theory, if perfectly linearly polarized light is launched
into a high birefringence fiber with its plane of polarization
exactly aligned to either of the fiber's principal axes, then the
light radiated at the distal end will also be perfectly polarized.
In practice, some light gradually couples to the not-launched
polarization, and at the distal end of the fiber a small,
unintended, component is present. This Standard describes a test
method for measuring this imperfection.

The coupling between polarization states is due to both fiber
characteristics and environmental influences. To differentiate
these effects and allow for comparative evaluations of fibers, this
procedure suggests standard configurations for the test specimen
(See section 4).

Additional information