Physics Lab Equipment

LEOI-32A Apparatus of Optical Rotation and Faraday Effect

LEOI-32A Apparatus of Optical Rotation and Faraday Effect

Features

  • Large Verdet constant with rotation ≥15° (at current of 3 A)

  • Precise measurement

  • Stable base for easy operation

  • Magneto-optic modulation technique demo







Introduction

The magneto-optic rotation effect of a crystal, also called the Faraday effect, describes the effect of polarization rotation of an optical beam going through a layer of magneto-optic material. It plays an important role in optical experiments. This experimental system is designed to

 

1. Observe the magneto-optic rotation effect of a material under test

2. Understand the flow direction of a magnetic current vs the polarization rotation direction of a Faraday rotator

3. Calculate the Verdet constant

4. Demonstrate optical communication using magneto-optic modulation technique

 

This experimental system can be used to conduct the following experiments:

 

1. Observe Faraday effect

2. Acquire relationship between magnetization current and polarization rotation angle

3. Observe current direction vs polarization rotation direction

4. Calculate the Verdet constant of material under test

5. Demonstrate optical communication using magneto-optic modulation technique

6. Verify Malus's law


Parts and Specifications

DescriptionSpecificationsQty
Optical raillength: 0.8 m1
Diode laser4 mW at 650 nm with 2-D adjustable holder1
Polarizerincl holder2
Coil

inner diameter: 10 mm

outer diameter: 110 mm

number of turns: 1600

length: 50 mm

1
Laser power meter with probe

3-1/2 digits

scale: 200 μW, 2 mW, 20 mW, 200 mW

resolution: 0.1 μW

1
Main unit0~3 A adjustable with built-in speaker1
Teslameterrange: 0 - 2000 mT1
SampleΦ6 mm; length: 30 mm1
Audio signal sourceMP31
Slide
5
Photo detectorincl 2-D adjustable holder, ± 2.5 mm1
Power cord
1
Instruction manual
1

    LEOI-32A Apparatus of Optical Rotation and Faraday Effect.png

Schematic of Faraday effect


     Apparatus of Optical Rotation and Faraday Effect.png

Schematic of setup


      Apparatus of Optical Rotation and Faraday Effect.png

Schematic of front panel of main unit

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