Fiber
Optic dB Measurements MiniCourse
Fiber
U MiniCourses are courses on a specific topic that you can
take in about an hour or less. They are based on questions
people ask FOA all the time, so the topics are recommended
by our readers.
Level: Intermediate
Intended For:
Designers
of fiber optic communications networks
Users
of fiber optic communications networks
Contractors and techs who install, test, operate and
maintain them.
Objectives:
From this self-study program you should learn:
How
dB is defined
How
measurements of optical power are converted to dB
How
gain and loss are measured in dB
How
calibrated power measurements are expressed in dBm
Why
some instruments read dB differently
- Prerequisites
When
you finish, you can take an online test on this course to
qualify for a "Fiber U Certificate of Completion." The
test cost for a Fiber U MiniCourse is $10US.
Introduction
Fiber optic measurements of power and loss
are made in dB, a mysterious unit of measurement that
confuses many people. This course explains what dB and dBm
are, how they are defined and measured. The course will
also explain how small change in a standard created
confusion and misunderstanding of dB. Even if you aren't a
math whiz, this FOA course can help you understand dB.
Assignments
For
this lesson plan you will be instructed to watch the
video, read
the reference
and take a quiz (Test Your Knowledge) to complete the
course.
Lesson
Plans
Watch
the video first, read the section in the FOA Guide on dB
and take the quiz. For this course, we recommend
watching the video first and then readindBg the FOA
Guide page on . There is a short quiz you can use to
check your comprehension. The Certificate of Completion
test is based on those materials.
Videos
The
Mysterious dB of Fiber Optics.
FOA Guide
Fiber
Optic Measurement Units: dB and dBm
Test Your Comprehension
Fiber Optic dB
Measurements Quiz.
When
you finish all the assignments you can take an online test
on this course to qualify for a "Fiber U Certificate of
Completion." The test cost is $10US.
Go here to take the Fiber
U dB Minicourse -" Certificate of Completion test.
Here
are detail directions if this is your first time
taking a Fiber
U Certificate of Completion exam.
This information is
provided by The Fiber Optic Association, Inc. as a
benefit to those interested in teaching, designing,
manufacturing, selling, installing or using fiber optic
communications systems or networks. It is intended to be
used as an overview and/or basic guidelines and in no
way should be considered to be complete or
comprehensive. These guidelines are strictly the opinion
of the FOA and the reader is expected to use them as a
basis for learning, as a reference and for creating
their own documentation, project specifications, etc.
Those working with fiber optics in the classroom,
laboratory or field should follow all safety rules
carefully. The FOA assumes no liability for the use of
any of this material.
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