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20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier

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Regeneratively mode-locked optoelectronic oscillator.

Zhuoyue Tuo, Chunbo Zhao, Yansong Meng

|December 16, 2022

Summary

This summary is machine-generated.

A novel regeneratively mode-locked optoelectronic oscillator achieves multi-mode phase locking. This new approach overcomes frequency detuning issues in optoelectronic oscillators for stable long-term operation.

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Area of Science:

Optoelectronics
Microwave Photonics
Signal Generation

Background:

Optoelectronic oscillators (OEOs) are crucial for generating stable microwave signals.
Achieving multi-mode phase locking in OEOs is challenging due to frequency detuning.

Purpose of the Study:

To propose and demonstrate a regeneratively mode-locked OEO for multi-mode phase locking.
To overcome the detuning problem between modulating frequency and mode spacing.

Main Methods:

A coupled modulating signal generation loop was introduced into the OEO.
Numerical simulations were performed to validate the scheme.
A proof-of-concept experiment used a 2.2 km polarization-maintaining single-mode fiber and an electric amplitude modulator/Mach-Zehnder modulator.

Main Results:

The proposed scheme successfully achieved multi-mode phase locking.
A 10 GHz microwave pulse signal with a 95 kHz repetition rate was generated.
The experimental setup confirmed the feasibility of the approach.

Conclusions:

The regeneratively mode-locked OEO offers a new method for stable multi-mode phase locking.
This technique addresses long-term operational challenges in OEOs.
The findings pave the way for improved OEO performance.