Related Experiment Video
Updated: May 29, 2026
08:39
Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator
Published on: January 28, 2019
Fully tunable 360° microwave photonic phase shifter based on a single semiconductor optical amplifier
Juan Sancho1, Juan Lloret, Ivana Gasulla
1ITEAM Research Institute, Universidad Politécnica de Valencia, Valencia, Spain. juasandu@iteam.upv.es
Optics Express
|September 22, 2011
Summary
A novel microwave photonic phase shifter uses a semiconductor optical amplifier (SOA) for full tunability. This device achieves a 360° phase shift by adjusting optical input and wavelength, enabling positive and negative shifts with a notch filter.
Area of Science:
- Photonics
- Microwave Engineering
- Semiconductor Devices
Background:
- Microwave photonic phase shifters are crucial for advanced signal processing.
- Achieving wide-range tunability and precise control remains a challenge.
Purpose of the Study:
- To propose and demonstrate a fully tunable microwave photonic phase shifter.
- To achieve a 360° microwave phase shift using a single semiconductor optical amplifier (SOA).
Main Methods:
- Utilizing a single semiconductor optical amplifier (SOA) as the core component.
- Tuning the carrier wavelength and optical input power.
- Leveraging the dispersion characteristics of a designed notch filter.
Main Results:
- Demonstrated a fully tunable microwave photonic phase shifter.
- Achieved a full 360° microwave phase shift.
- Successfully switched between positive and negative phase shifts using the optical filter.
Conclusions:
- The proposed SOA-based phase shifter offers full tunability.
- The integration of a notch filter enables control over phase shift polarity.
- Numerical simulations confirm excellent agreement with experimental findings.
