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Optical Fiber Communication Systems with MATLAB® and Simulink® Models, 2nd Edition
book

Optical Fiber Communication Systems with MATLAB® and Simulink® Models, 2nd Edition

by Le Nguyen Binh
December 2014
Intermediate to advanced content levelIntermediate to advanced
899 pages
32h 28m
English
CRC Press
Content preview from Optical Fiber Communication Systems with MATLAB® and Simulink® Models, 2nd Edition
271
7
Direct Detection Optical Receivers
This chapter describes the fundamental understanding of the detection of optical signals
u
sing
d
irect
t
echniques.
I
n
t
his
d
etection
p
rocess,
t
he
l
ightwave
p
ower
i
s
a
bsorbed
b
y
t
he
s
emiconductor
a
ctive
a
rea
i
n
w
hich
t
he
a
bsorption
w
ould
r
esult
i
n
t
he
g
enerationof
p
ositive
a
nd
n
egative
c
arriers
w
hich
a
re
t
hen
c
ollected
b
y
e
ither
t
he
c
athode
o
r
a
node
o
f
t
he
p
hotodetector
(
PD)
j
unction
u
nder
r
everse
b
ias.
O
n
t
he
o
ther
h
and,
t
he
d
etection
of the optical input eld can be mixed with a local oscillator so that the total eld can
b
e
d
etected
i
n
t
he
P
D
u
nder
t
he
s
quare-law
r
elation.
T
his
s
quare
l
aw
r
esults
i
n
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Publisher Resources

ISBN: 9781482217513