<s>
For	O
an	O
optical	B-Architecture
fiber	I-Architecture
,	O
the	O
effective	B-Device
mode	I-Device
volume	I-Device
is	O
the	O
square	O
of	O
the	O
product	O
of	O
the	O
diameter	O
of	O
the	O
near-field	B-Algorithm
pattern	O
and	O
the	O
sine	O
of	O
the	O
radiation	O
angle	O
of	O
the	O
far-field	B-Device
pattern	I-Device
.	O
</s>
<s>
The	O
diameter	O
of	O
the	O
near-field	B-Algorithm
radiation	B-Device
pattern	I-Device
is	O
defined	O
here	O
as	O
the	O
full	O
width	O
at	O
half	O
maximum	O
and	O
the	O
radiation	O
angle	O
at	O
half	O
maximum	O
radiant	O
intensity	O
.	O
</s>
<s>
Effective	B-Device
mode	I-Device
volume	I-Device
is	O
proportional	O
to	O
the	O
breadth	O
of	O
the	O
relative	O
distribution	O
of	O
power	O
amongst	O
the	O
modes	O
in	O
a	O
multimode	O
fiber	O
.	O
</s>
<s>
The	O
power	O
divided	O
by	O
the	O
effective	B-Device
mode	I-Device
volume	I-Device
is	O
proportional	O
to	O
the	O
radiance	B-Application
of	O
the	O
light	O
emitted	O
by	O
the	O
fiber	O
.	O
</s>
