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Updated: Jul 10, 2026
07:56
A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
Published on: September 5, 2019
Orthogonally polarized single sideband modulator.
1Optical Sciences Division, U.S. Naval Research Laboratory, Washington, DC 20375, USA. anthony.l.campillo@nrl.navy.mil
Optics Letters
|November 3, 2007
Summary
A novel modulator design creates a constant intensity modulation format using a Mach-Zehnder interferometer. This design produces a carrier and a single sideband, polarized orthogonally to the carrier.
Area of Science:
- Optical Engineering
- Photonics
- Modulation Technology
Background:
- Constant intensity modulation is crucial for efficient optical communication.
- Existing modulation formats face limitations in spectral efficiency and power consumption.
Purpose of the Study:
- To propose a new modulator design for achieving constant intensity modulation.
- To demonstrate a novel modulation format with specific polarization characteristics.
Main Methods:
- Utilizing a Mach-Zehnder interferometer architecture.
- Incorporating two polarization modulators within the interferometer.
- Applying a 90-degree phase shift to the electrical drive signals of the modulators.
Main Results:
- A new constant intensity modulation format is successfully produced.
- The generated modulation includes a carrier and a single sideband.
- The single sideband is orthogonally polarized relative to the carrier.
Conclusions:
- The proposed Mach-Zehnder interferometer modulator design enables a novel constant intensity modulation format.
- This design offers potential advantages for optical communication systems requiring specific polarization properties.
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