Jeulin Fibroptonic Mode D'emploi page 43

Optics
Fibroptonic
Ref : 202 012
1 Purpose
Experimentation on the propagation of infrared signals in air and in transparent mediums
The light transmitter provides an infrared signal of about hundred nanometers of spectral
bandwidth, centred at the wavelength of 850 nm. The hatched area on figure 5 corresponds
to the spectral emissivity of the light transmitter. The optical fibre of 1 mm diameter
transmits this signal without much absorption. The photoreceptor has a wide spectral
sensitivity ranging from near UV (300 nm) to infrared (1100 nm), with a maximum at 820
nm (figure 5).
Emissitivy or
spectral response
Relative quantities
Figure 5 : Spectral characteristics of the light transmitter and photoreceptor
ENGLISH
PROPAGATION OF AN INFRARED
FIBROPTONIC
Receiver
SIGNAL IN AIR
Transmitter
43
SHEET
01