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Advanced modulation formats for 400-Gbps short-reach optical inter-connection.
Optics Express
|April 4, 2015
Summary
Short reach optical networks (SR-ONs) require power and cost efficiency. This study explores advanced modulation formats like PAM4 and DMT to achieve 400-Gbps SR-ONs, focusing on component performance and compensation techniques.
Area of Science:
- Optical communications
- Telecommunications engineering
Background:
- Short reach optical networks (SR-ONs) are crucial for metro-area aggregation and access.
- Growing bandwidth demands in SR-ONs necessitate improved power and cost efficiency.
- Traditional long-haul network considerations differ from SR-ON requirements.
Purpose of the Study:
- To investigate advanced modulation formats for high-speed SR-ONs.
- To address power and cost efficiency challenges in SR-ONs.
- To evaluate opto-electronic components and digital signal processing (DSP) compensation techniques.
Main Methods:
- Discussion of advanced modulation formats including 56Gbps PAM4, 112Gbps poly-binary, and 100Gbps DMT.
- Analysis of low-cost, low-power opto-electronic components for SR-ONs.
- Experimental demonstration of 400-Gbps SR-ONs and DSP-based impairment compensation.
Main Results:
- Demonstration of 400-Gbps transmission using various advanced modulation formats.
- Evaluation of component limitations and their impact on SR-ON performance.
- Validation of DSP algorithms for mitigating impairments in SR-ONs.
Conclusions:
- Advanced modulation and low-cost components are key for efficient SR-ONs.
- DSP techniques are vital for overcoming component limitations and achieving high performance.
- The findings support the development of next-generation, high-capacity SR-ONs.
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