High-Precision Frequency Difference Locking System for Up/Downstream Lasers with 30 nm Interval in Next Generation Coherent PON

Zifeng Chen,Jiajun Lou,Yuanhao Zhang,Quanan Chen,Can Liu,Juan Xia,Qiaoyin Lu,Weihua Guo

2024 Optical Fiber Communications Conference and Exhibition (OFC)（2024）

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摘要

We demonstrated a high-precision frequency locking system based on asymmetric Mach-Zehnder interferometer (AMZI). The 1526 nm upstream laser realized a frequency difference stability of about 30 nm ± 25 MHz with 1556 nm downstream laser.

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关键词

Differences In Frequency,Mach-Zehnder Interferometer,Plasma-enhanced Chemical Vapor Deposition,Optical Switching,Thermoelectric Coolers,Distributed Bragg Reflector,Distributed Feedback,Distributed Feedback Laser

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