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Multi-format receiver for non-return-to-zero binary-phase-shift-keyed and non-return-to-zero amplitude-shit-keyed
Zhixin Liu1, Shilin Xiao, Lei Cai
1State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.
Optics Express
|February 17, 2009
Summary
This study demonstrates a novel multi-format receiver capable of detecting both non-return-to-zero binary-phase-shift-keyed (NRZ-BPSK) and non-return-to-zero amplitude-shift-keyed (NRZ-ASK) signals, paving the way for flexible optical networks.
Area of Science:
- Optical communications
- Signal processing
Background:
- Current optical networks often require dedicated receivers for different signal formats.
- The increasing demand for data necessitates flexible and efficient optical network components.
Purpose of the Study:
- To demonstrate a single receiver capable of processing both NRZ-BPSK and NRZ-ASK signals.
- To enable seamless integration into all-optical wavelength division-multiplexed (WDM) networks.
Main Methods:
- Utilized incoherent BPSK demodulation.
- Implemented an ASK-BPSK format conversion technique.
- Employed a Mach-Zehnder delay interferometer (MZDI) and a feedback decoder for BPSK demodulation.
Main Results:
- Successfully demonstrated a multi-format receiver.
- Validated the feasibility of the proposed detection scheme through transmission experiments.
- Achieved detection of both NRZ-BPSK and NRZ-ASK signals with the developed receiver.
Conclusions:
- The developed multi-format receiver is feasible and effective.
- This technology offers a potential solution for flexible terminal blocks in all-optical WDM networks.
- The receiver simplifies network architecture by accommodating multiple signal formats.
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