<s>
A	O
fiber-optic	B-Protocol
splitter	I-Protocol
,	O
also	O
known	O
as	O
a	O
beam	O
splitter	O
,	O
is	O
based	O
on	O
a	O
quartz	B-General_Concept
substrate	O
of	O
an	O
integrated	O
waveguide	O
optical	O
power	O
distribution	O
device	O
,	O
similar	O
to	O
a	O
coaxial	O
cable	O
transmission	O
system	O
.	O
</s>
<s>
The	O
fiber	B-Protocol
optic	I-Protocol
splitter	I-Protocol
is	O
one	O
of	O
the	O
most	O
important	O
passive	B-Architecture
devices	I-Architecture
in	O
the	O
optical	B-Architecture
fiber	I-Architecture
link	O
.	O
</s>
<s>
It	O
is	O
an	O
optical	B-Architecture
fiber	I-Architecture
tandem	O
device	O
with	O
many	O
input	O
and	O
output	O
terminals	O
,	O
especially	O
applicable	O
to	O
a	O
passive	B-Architecture
optical	I-Architecture
network	I-Architecture
(	O
EPON	O
,	O
GPON	B-Architecture
,	O
BPON	O
,	O
FTTX	B-Architecture
,	O
FTTH	B-Architecture
etc	O
.	O
)	O
</s>
<s>
to	O
connect	O
the	O
main	B-Device
distribution	I-Device
frame	I-Device
and	O
the	O
terminal	O
equipment	O
and	O
to	O
branch	O
the	O
optical	O
signal	O
.	O
</s>
<s>
According	O
to	O
the	O
principle	O
,	O
fiber	B-Protocol
optic	I-Protocol
splitters	I-Protocol
can	O
be	O
divided	O
into	O
Fused	O
Biconical	O
Taper	O
(	O
FBT	O
)	O
splitter	O
and	O
Planar	O
Lightwave	O
Circuit	O
(	O
PLC	O
)	O
splitters	O
.	O
</s>
<s>
The	O
PLC	O
splitter	O
is	O
a	O
micro-optical	O
element	O
using	O
photolithographic	B-Algorithm
techniques	O
to	O
form	O
optical	O
waveguide	O
at	O
medium	O
or	O
semiconductor	O
substrate	O
for	O
realizing	O
branch	O
distribution	O
function	O
.	O
</s>
<s>
The	O
FBT	O
splitter	O
offers	O
low	O
cost	O
,	O
common	O
materials	O
(	O
quartz	B-General_Concept
substrate	O
,	O
stainless	O
steel	O
,	O
fiber	O
,	O
hot	O
dorm	O
,	O
GEL	O
)	O
,	O
and	O
an	O
adjustable	O
splitting	O
ratio	O
.	O
</s>
