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Pockels effect: transmitting information using modulated light /
Pockels effect: transmitting information using modulated light

Pockels effect: transmitting information using modulated light

VP5.4.5.2

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Description

The experiment P5.4.5.2 shows how the Pockels cell can be used to transmit audio-frequency signals. The output signal of a function generator with an amplitude of several volts is superposed on a DC voltage which is applied to the crystal of the Pockels cell. The intensity of the light transmitted by the Pockels cell is modulated by the superposed frequency. The received signal is output to a speaker via an amplifier and thus made audible.

Components of equipment sets

1	47290	Pockels cell
1	52170 8	High-voltage power supply, 10 kV
1	471831	He-Ne-Laser, linearly polarised
1	522621 4	Function generator S 12
1	57862 4	Solar cell, STE 2/19
1	46021 4	Holder for plug-in elements
1	53220 8	AC/DC amplifier 30 W
1	58708 8	Broad-band speaker
1	472401 4	Polarisation filter
1	46032 8	Optical bench with standardised profile, 1 m
4	460370 8	Optics rider, 60/34
1	30011 4	Saddle base
1	50098 8	Safety adapter sockets, black, set of 6
2	500622 4	Safety experiment cable, 50 cm, blue
3	500641 8	Safety experiment cable, 100 cm, red
3	500642 4	Safety experiment cable, 100 cm, blue

Experiment Instructions

PDF (Experiment description)

P5.4.5.2 Pockels effect: transmitting information using modulated light

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Pockels effect: transmitting information using modulated light

Description

Components of equipment sets

Experiment Instructions

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