LB-EO Rev.
3
1
Product overview
The Flashlink LB-EO is an electrical to fibre optical converter module providing high
performance media conversion for analogue signals with bandwidth from 950 to 2150 MHz.
This state of the art unit offers low noise amplifiers and a high quality laser diode technology
with low distortion and capable of amplifying large signal levels. The attenuator is a high
performance digitally controlled device, giving low distortion and flat frequency response.
The Flashlink LB-EO is therefore the first choice for all optical transport demands on L-band.
The Flashlink LB-EO converter and the Flashlink LB-OE converter can transport all L-band
signals between 950 and 2150 MHz over long distances using fibre optical transport media.
The optical output comes with a sophisticated wideband laser diode designed to convert the
electrical signal to optical giving very little inter modulation and excellent signal to noise
ratio.
There is also an attenuated electrical monitor output for test and service purposes as well as a
remote control interface.
Figure 1: LB-EO L-band electrical to optical converter.
This L-band link is normally used in conjunction with other equipment like satellite tuners,
LNBs in parabolic dishes etc, and the link performance is dependant of good signal to noise
ratio from the signal source and good noise figure of the receiver equipment. The link quality
is also dependant of the number of channels transferred on the link. For instance, the link’s
signal to noise ratio is reduced with 3dB when doubling the number of the channels (twice
the power). If the link’s input signal has a lot of noise or the receiver’s sensitivity is low, the
link’s maximum possible loss will correspondingly be reduced.
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