{"title":"16×56-Gbps WDM transmission in an atomic-layer-deposited Er-doped waveguide amplifier.","authors":"Hao Zhang, Yanze Wang, Yichen He, Shengyun Zhu, Yaping Liu, Xiaoyan Zhou, Lin Zhang","doi":"10.1364/OL.570116","DOIUrl":null,"url":null,"abstract":"<p><p>Driven by the increasing demand for efficient optical communication, on-chip amplifiers have become essential components in photonic integrated circuits for realizing cost-efficient and compact wavelength-division multiplexing (WDM) receivers. In this work, we investigate the WDM signal transmission performance of an on-chip erbium-doped aluminum-oxide waveguide amplifier, fabricated using atomic layer deposition. The waveguide amplifier demonstrates a net gain of >5.0 dB across the entire C-band, with a peak value of 11.1 ± 1.5 dB at 1531.6 nm, corresponding to an off-chip net gain of 7.1 ± 1.5 dB. A maximum on-chip output power of 4.1 ± 1.4 dBm at 1531.6 nm is achieved. Broadband performance is further confirmed by a 16-channel gain measurement. Finally, a 16-channel 56-Gbps WDM transmission is demonstrated, with the Q<sup>2</sup> values comparable to those of the back-to-back transmission, highlighting the potential of the amplifier for high-speed coherent data transmission.</p>","PeriodicalId":19540,"journal":{"name":"Optics letters","volume":"50 18","pages":"5594-5597"},"PeriodicalIF":3.3000,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Optics letters","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1364/OL.570116","RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"OPTICS","Score":null,"Total":0}
引用次数: 0
Abstract
Driven by the increasing demand for efficient optical communication, on-chip amplifiers have become essential components in photonic integrated circuits for realizing cost-efficient and compact wavelength-division multiplexing (WDM) receivers. In this work, we investigate the WDM signal transmission performance of an on-chip erbium-doped aluminum-oxide waveguide amplifier, fabricated using atomic layer deposition. The waveguide amplifier demonstrates a net gain of >5.0 dB across the entire C-band, with a peak value of 11.1 ± 1.5 dB at 1531.6 nm, corresponding to an off-chip net gain of 7.1 ± 1.5 dB. A maximum on-chip output power of 4.1 ± 1.4 dBm at 1531.6 nm is achieved. Broadband performance is further confirmed by a 16-channel gain measurement. Finally, a 16-channel 56-Gbps WDM transmission is demonstrated, with the Q2 values comparable to those of the back-to-back transmission, highlighting the potential of the amplifier for high-speed coherent data transmission.
期刊介绍：
The Optical Society (OSA) publishes high-quality, peer-reviewed articles in its portfolio of journals, which serve the full breadth of the optics and photonics community.
Optics Letters offers rapid dissemination of new results in all areas of optics with short, original, peer-reviewed communications. Optics Letters covers the latest research in optical science, including optical measurements, optical components and devices, atmospheric optics, biomedical optics, Fourier optics, integrated optics, optical processing, optoelectronics, lasers, nonlinear optics, optical storage and holography, optical coherence, polarization, quantum electronics, ultrafast optical phenomena, photonic crystals, and fiber optics. Criteria used in determining acceptability of contributions include newsworthiness to a substantial part of the optics community and the effect of rapid publication on the research of others. This journal, published twice each month, is where readers look for the latest discoveries in optics.
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