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Time domain all-optical signal processing at a RZ optical receiver
Optics Express
|June 6, 2009
Summary
A novel all-optical signal processing method improves return-to-zero optical receiver performance. This technique uses nonlinear pulse broadening and slicing to overcome timing jitter and noise limitations in high-speed transmissions.
Area of Science:
- Optical Communications
- Nonlinear Optics
- Signal Processing
Background:
- Return-to-zero (RZ) optical receivers face performance degradation due to timing jitter and noise.
- Existing methods for mitigating these issues often involve complex electronic processing or optical components.
Purpose of the Study:
- To introduce a new all-optical signal processing technique for enhancing RZ optical receiver performance.
- To demonstrate the effectiveness of this method in overcoming timing jitter and noise limitations.
Main Methods:
- Utilizing nonlinear temporal pulse broadening and flattening in a normal dispersion fiber.
- Employing subsequent slicing of the broadened pulse temporal waveform for signal recovery.
Main Results:
- The proposed technique successfully enhances the performance of an RZ optical receiver.
- Demonstrated effectiveness in timing jitter- and noise-limited transmission scenarios at 40 Gbit/s.
Conclusions:
- The all-optical approach offers a promising solution for improving RZ optical receiver performance.
- This method provides a viable alternative to electronic processing for high-speed optical communication systems.
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