研究目的
Investigating the performance and power consumption reduction of China’s first domestically designed silicon-based module in coherent transmission systems.
研究成果
The line card with in-house designed SiPh-based 100G DCO passed all test items, showing high performance, high reliability, and lower power consumption. It demonstrates great potential in coherent transmission networks.
研究不足
The launch power of SiPh-based device is lower than -5dBm, requiring a compact EDFA to meet the requirement. The relative high insertion loss of silicon photonics and limited bandwidth of silicon modulator are noted as potential areas for optimization.
1：Experimental Design and Method Selection:
The test setup included evaluating the line card with Fiberhome’s SiPh-based module on the current network by Shanghai Telecom, focusing on error vector magnitude (EVM), back-to-back (B2B) limited OSNR, Bit-ratio-error (BER), and other parameters.
2：Sample Selection and Data Sources:
The SiPh-based module was in-house designed, developed, and assembled by Fiberhome Technologies Group.
3：List of Experimental Equipment and Materials:
A commercial DSP was employed to generate a 112Gbps coherent PM-DQPSK data.
4：Experimental Procedures and Operational Workflow:
The test method was based on the test scheme of China telecom N×100Gbit/s WDM transmission equipment and system.
5：Data Analysis Methods:
The performance was evaluated based on national requirements and compared with traditional DCOs.
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