Schematic of Faraday effect
A photo of setup
Note: oscilloscope not included
Features
Easy operation
Precise measurement
Stable base
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. Measure Faraday rotation angle
2. Calculate the Verdet constant of a material
3. Characterize a magneto-optic glass
4. Demonstrate optical communication using magneto-optic modulation technique
The instruction manual contains comprehensive materials including experimental configurations, principles and step-by-step instructions. Please click Experiment Theory and Contents to find more information about this apparatus.
Specifications
| Description | Specifications |
| Laser Source | Semiconductor Laser |
| Laser Wavelength | 650 nm |
| Laser Output Power | >5.0 mW |
| DC Excitation Current | 0 ~ 2.0 A (continuously adjustable, 3 1/2-digit display) |
| DC Magnetic Induction | 0 ~ 100 mT |
| Internal Modulation Signal | Sinusoidal Wave at 1 kHz |
| Power Supply | 110/220 V, 50/60 Hz |
Part List
| Description | Qty |
| Main Unit | 1 |
| Semiconductor Laser (LLL-1) | 1 |
| Polarizer | 2 |
| Optical Rail (0.7 m) | 1 |
| Carrier | 5 |
| 2D Adjustable Laser Holder | 1 |
| Electromagnet | 1 |
| Polarizer Holder | 2 |
| Teslameter | 1 |
Schematic of Faraday effect
A photo of setup
