Zhengxuan Li 李正璇, Qinyao Yang 杨勤尧, Yingxiong Song 宋英雄, Acai Tan 谭阿才, Siyu Luo 骆思雨, Bingyao Cao 曹炳尧
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引用次数: 0
Abstract
As data rates in orthogonal frequency division multiplexing (OFDM) passive optical networks (PONs) exceed 50 Gbit/s, coherent reception emerges as a compelling choice, and managing the wavelength of the local oscillator (LO) laser becomes a key challenge in system design. We propose a colorless coherent OFDM-PON architecture using an optical frequency comb (OFC) at the optical line terminal (OLT), allowing the optical network unit (ONU) laser to drift across the comb bandwidth. Experimental results indicate that the proposed architecture enables colorless reception without performance degradation. Additionally, by applying frequency shifting and combining the received signal, the receiver sensitivity of high-bandwidth receivers can be enhanced by approximately 2 dB.
期刊介绍：
Optics Communications invites original and timely contributions containing new results in various fields of optics and photonics. The journal considers theoretical and experimental research in areas ranging from the fundamental properties of light to technological applications. Topics covered include classical and quantum optics, optical physics and light-matter interactions, lasers, imaging, guided-wave optics and optical information processing. Manuscripts should offer clear evidence of novelty and significance. Papers concentrating on mathematical and computational issues, with limited connection to optics, are not suitable for publication in the Journal. Similarly, small technical advances, or papers concerned only with engineering applications or issues of materials science fall outside the journal scope.
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