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Integrable high order UWB pulse photonic generator based on cross phase modulation in a SOA-MZI
Optics Express
|October 10, 2013
Summary
We demonstrate a new optical method to create high-order ultrawideband (UWB) pulses. This technique uses cross-phase modulation in a Mach-Zehnder interferometer with semiconductor amplifiers for flexible pulse generation.
Area of Science:
- Photonics and Optical Engineering
- Semiconductor Device Physics
Background:
- Ultrawideband (UWB) pulse generation is crucial for high-data-rate communication and advanced sensing.
- Existing methods for generating high-order UWB pulses often face limitations in integrability and flexibility.
Purpose of the Study:
- To propose and experimentally validate a novel, integrable optical scheme for generating high-order UWB pulses.
- To leverage cross-phase modulation (XPM) for precise control over UWB pulse characteristics.
Main Methods:
- Utilized an InGaAsP Mach-Zehnder interferometer (MZI) with integrated semiconductor optical amplifiers (SOAs).
- Exploited the nonlinear phenomenon of cross-phase modulation (XPM) within the MZI.
- Incorporated an optical processing unit for adaptable control of pulse parameters.
Main Results:
- Successfully generated high-order UWB pulses using the proposed optical scheme.
- Demonstrated the potential for integration of the MZI-SOA system.
- Showcased adaptability to various pulse modulation formats by controlling amplitude, polarity, and time delay.
Conclusions:
- The proposed scheme offers a promising, integrable solution for generating high-order UWB pulses.
- The use of XPM in an MZI with SOAs provides a flexible platform for UWB pulse engineering.
- This technique can be adapted for diverse applications requiring tailored UWB pulse characteristics.
