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Updated: Jun 17, 2026

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
Published on: March 20, 2017
Multiple-channel optical signal processing with wavelength-waveform conversions, pulsewidth tunability, and signal
Hung Nguyen Tan1, Motoharu Matsuura, Tomoya Katafuchi
1The Department of Information and Communication Engineering, University of Electro-Communications, Tokyo, 182-8585, Japan. hung@ice.uec.ac.jp
This study demonstrates a novel optical signal processor for wavelength-division multiplexing systems. It achieves multiple functions including wavelength conversion and signal regeneration, enhancing data processing capabilities.
Area of Science:
- Optoelectronics
- Optical Communications
Background:
- Wavelength-division multiplexing (WDM) systems require advanced optical signal processing.
- Efficient multi-channel data processing is crucial for network nodes.
Purpose of the Study:
- To realize a multiple-channel multiple-function optical signal processor (MCMF-OSP).
- To demonstrate wavelength-waveform conversions, pulsewidth tunability, and signal regeneration.
Main Methods:
- Utilized an AND logic gate based on optical parametric processing.
- Employed a pulsewidth-tunable RZ clock pump.
- Experimentally demonstrated on four 10 Gb/s nonreturn-to-zero (NRZ) channels using semiconductor optical amplifier (SOA) and highly nonlinear fiber (HNLF).
Main Results:
- Achieved simultaneous wavelength and waveform conversion to return-to-zero (RZ) modulation format.
- Demonstrated pulsewidth tunability from 20% to 80% duty cycles.
- Obtained signal regeneration with enhanced tolerance to narrow-band optical filtering (NAOF) and fiber chromatic dispersion (CD).
Conclusions:
- The proposed MCMF-OSP offers a versatile solution for WDM systems.
- The scheme provides efficient multi-channel data processing with improved signal quality and robustness.
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