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Programmable optical pulse repetition rate multiplication via spectral phase manipulation
Optics Express
|March 4, 2020
Summary
Researchers demonstrate flexible optical pulse repetition rate multiplication (PRRM) using spectral phase manipulation. This method achieves power lossless PRRM with arbitrary factors and undistorted pulses, enhancing future device capabilities.
Area of Science:
- Photonics and Optics
- Nonlinear Optics
- Optical Communications
Background:
- Optical Pulse Repetition Rate Multiplication (PRRM) is crucial for high-speed optical signal processing.
- Existing PRRM techniques often face limitations in flexibility and power efficiency.
- Spectral phase manipulation offers a promising avenue for advanced PRRM.
Purpose of the Study:
- To propose and demonstrate flexible phase patterns for power lossless PRRM.
- To develop formulas for PRRM phase conditions with arbitrary multiplication factors.
- To overcome limitations in spectral phase manipulation for PRRM.
Main Methods:
- Spectral phase-only manipulation using an optical wave-shaper (OWS).
- Numerical and experimental demonstration of PRRM with multiplication factors up to eight.
- Quantitative characterization of OWS limitations on spectral amplitude.
Main Results:
- Introduced novel formulas for power lossless PRRM with arbitrary multiplication factors.
- Demonstrated flexible phase patterns extending beyond reported conditions.
- Achieved uniform temporal pulse trains without spectral amplitude trimming despite OWS limitations.
Conclusions:
- The proposed flexible phase patterns significantly enhance PRRM capabilities.
- The findings pave the way for more versatile and efficient PRRM devices.
- This work offers practical solutions for implementing PRRM in optical systems.
