<s>
Gap	B-Device
loss	I-Device
is	O
a	O
type	O
of	O
signal	O
strength	O
loss	O
that	O
occurs	O
in	O
fiber	B-Architecture
optic	I-Architecture
transmission	O
when	O
the	O
signal	O
is	O
transferred	O
from	O
one	O
section	O
of	O
fiber	B-Architecture
or	O
cable	O
to	O
another	O
.	O
</s>
<s>
The	O
three	O
basic	O
types	O
of	O
gap	B-Device
loss	I-Device
are	O
angular	O
misalignment	O
loss	O
,	O
lateral	O
offset	O
loss	O
,	O
and	O
longitudinal	O
displacement	O
loss	O
.	O
</s>
<s>
Gap	B-Device
loss	I-Device
can	O
be	O
reduced	O
by	O
filling	O
the	O
gap	O
with	O
a	O
gel	O
that	O
matches	O
the	O
index	O
of	O
refraction	O
of	O
the	O
fiber	B-Architecture
as	O
closely	O
as	O
possible	O
.	O
</s>
<s>
Specifically	O
,	O
gap	B-Device
loss	I-Device
happens	O
when	O
the	O
signal	O
from	O
one	O
end	O
of	O
a	O
piece	O
of	O
cable	O
is	O
transferred	O
to	O
another	O
,	O
but	O
there	O
is	O
a	O
space	O
,	O
breakage	O
,	O
or	O
gap	O
between	O
them	O
.	O
</s>
<s>
Since	O
fiber	B-Architecture
optics	I-Architecture
transmit	O
data	O
via	O
light	O
the	O
light	O
can	O
cross	O
this	O
gap	O
,	O
but	O
spreads	O
out	O
and	O
is	O
weakened	O
and	O
diffused	O
when	O
it	O
does	O
so	O
.	O
</s>
<s>
If	O
the	O
gap	O
is	O
small	O
,	O
the	O
gap	B-Device
loss	I-Device
will	O
be	O
small	O
,	O
but	O
if	O
the	O
gap	O
is	O
very	O
large	O
,	O
it	O
may	O
totally	O
corrupt	O
the	O
signal	O
.	O
</s>
<s>
Gap	B-Device
loss	I-Device
can	O
be	O
caused	O
by	O
many	O
factors	O
,	O
but	O
the	O
most	O
common	O
is	O
poorly	O
fitted	O
multi-sectional	O
fiber	B-Architecture
optic	I-Architecture
cables	O
.	O
</s>
<s>
If	O
there	O
is	O
a	O
break	O
in	O
a	O
directly	O
buried	O
fiber	B-Architecture
optic	I-Architecture
line	O
then	O
usually	O
there	O
will	O
simply	O
be	O
a	O
loss	O
of	O
signal	O
.	O
</s>
<s>
As	O
a	O
result	O
of	O
signal	O
strength	O
and	O
cohesion	O
being	O
lost	O
(	O
due	O
to	O
the	O
scattering	O
of	O
the	O
light	O
)	O
,	O
a	O
fiber	B-Architecture
optic	I-Architecture
signal	O
suffering	O
from	O
gap	B-Device
loss	I-Device
is	O
degraded	O
in	O
both	O
quality	O
and	O
throughput	O
.	O
</s>
