Interferometers
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Quantum Physics KitsMichelson Interferometer for the quADD-ED photon board
Michelson Interferometer as an add-on for the quADD-ED Entanglement Demonstrator.
- Overview
- System Includes
- Sample Experiments
- Downloads
Overview
Interference is generally considered to be a wave phenomenon. Curiously it also works with single quantum objects. Use the quADD-ED and the quADDON-MI Michelson Interferometer together to show that this is the case.
The 810nm photons come from the polarization maintaining fiber on the top left. They are collimated before reaching the beam splitter. In all other directions after the splitter, polarizers can be swung into the beam path. A stepper motor moves the glass wedge at the bottom to change the optical path length in this interferometer arm.
After the beam splitter output, the photons are collected again by a single mode fiber which could lead to an APD detector of the quEDU.
System Includes
This is an add-on for the quADD-ED, which is controlled by the quEDU. The quADDON-MI consists of the following parts:
- Polarization maintaining fiber input with fiber mating sleeve and single mode fiber output
- Beam splitter cube
- 3x polarizers, that can be swung in and out of the interferometer
- Stepper motor for glass wedge movements
- 2x 2D kinematic mirror mounts for optical alignment
Sample Experiments
Here is a list of the experiments where the quADDON-MI is involved.
Single Photon Experiments with Interference
Photon Pair Experiments without Polarisation Entanglement
These are the experiments we have come up with so far and found interesting enough to put them here. Do you have more ideas? Please let us know!
quED-MI sample solution