<s>
D-Lightsys	B-Device
,	O
a	O
Radiall	O
Company	O
,	O
designs	O
and	O
manufactures	O
high	O
performance	O
optical	O
interconnect	O
products	O
for	O
severe	O
environment	O
applications	O
.	O
</s>
<s>
D-Lightsys	B-Device
products	O
are	O
based	O
on	O
optoelectronic	O
components	O
.	O
</s>
<s>
Products	O
are	O
manufactured	O
in	O
Isle	O
d’Abeau	O
,	O
near	O
Lyon	O
,	O
and	O
are	O
sold	O
through	O
the	O
Radiall	O
sales	O
network	O
under	O
the	O
D-Lightsys	B-Device
brand	O
.	O
</s>
<s>
In	O
2002	O
,	O
D-Lightsys	B-Device
won	O
the	O
French	O
award	O
for	O
the	O
most	O
innovative	O
high-tech	O
start-up	O
.	O
</s>
<s>
On	O
April	O
15	O
,	O
2005	O
,	O
Radiall	O
announced	O
its	O
acquisition	O
of	O
a	O
40%	O
stake	O
in	O
D-Lightsys	B-Device
.	O
</s>
<s>
On	O
January	O
8	O
,	O
2008	O
,	O
Radiall	O
announced	O
an	O
increase	O
in	O
its	O
shareholdings	O
of	O
the	O
start-up	O
D-Lightsys	B-Device
to	O
95	O
percent	O
.	O
</s>
<s>
D-Lightsys	B-Device
considers	O
free	O
space	O
optical	O
links	O
for	O
intermediate	O
communication	O
distances	O
ranging	O
from	O
a	O
few	O
centimeters	O
to	O
one	O
or	O
two	O
meters	O
.	O
</s>
<s>
D-Lightsys	B-Device
cooperated	O
on	O
this	O
research	O
with	O
the	O
development	O
of	O
the	O
optoelectronic	O
modules	O
.	O
</s>
<s>
High-speed	O
optoelectronic	O
modules	O
using	O
VCSEL ]	O
coupled	O
to	O
multi-mode	B-Device
optical	I-Device
fibers	I-Device
are	O
used	O
for	O
10	O
Gigabit	O
Ethernet	O
in	O
short-distance	O
optical	O
links	O
.	O
</s>
<s>
The	O
two	O
founders	O
of	O
D-Lightsys	B-Device
took	O
part	O
in	O
this	O
study	O
.	O
</s>
<s>
In	O
a	O
2004	O
study	O
,	O
in	O
which	O
Matthias	O
Pez	O
of	O
D-Lightsys	B-Device
contributed	O
,	O
is	O
presented	O
a	O
methodology	O
based	O
on	O
VHDL-AMS	O
modeling	O
for	O
taking	O
into	O
account	O
the	O
thermal	O
effects	O
of	O
an	O
optical	O
emission	O
module	O
combined	O
with	O
electronic	O
and	O
optic	O
behavior	O
.	O
</s>
