Nanosecond wavelength switching of a 16-channel DFB laser array based on REC technology Article Swipe
Jiaqiang Nie
,
Zhenxing Sun
,
Zhiyuan Su
,
Xianfei Xie
,
Jie Zhao
,
Yuxuan Chen
,
Zijiang Yang
,
Zhuoying Wang
,
Wentao Sun
,
Yue Zhang
,
Li Mi
,
Xiangfei Chen
·
YOU?
·
· 2025
· Open Access
·
· DOI: https://doi.org/10.1364/oe.577970
YOU?
·
· 2025
· Open Access
·
· DOI: https://doi.org/10.1364/oe.577970
In this paper, we propose and experimentally verify a 16-channel DFB laser array (DFB-LA) chip, and systematically verify the wavelength switching effect. The DFB-LA chip has a 100 GHz wavelength spacing and is designed as a 4 × 4 matrix. The wavelength spacing of the four series lasers is 400 GHz to reduce the wavelength crosstalk. The experimental results show that the side mode suppression ratio (SMSR) of each wavelength of the proposed DFB-LA is more than 40 dB, and the absolute wavelength deviation is within ± 0.16 nm. A semiconductor optical amplifier (SOA) is monolithically integrated into the chip to enhance the output power. When the current injected into the SOA is 150 mA, the output power of each channel exceeds 45 mW. In order to verify the effect of fast wavelength switching, we designed the corresponding high-speed drive circuit. The rise time of 16 channels is less than 5 ns, and the fall time is less than 7 ns. The optical signal during the switching process is modulated by an external MZ modulator, and a clear optical eye diagram and a bit error rate performance of less than 1 × 10 −10 are obtained under 12.5 Gb/s NRZ data.
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- article
- Language
- en
- Landing Page
- https://doi.org/10.1364/oe.577970
- OA Status
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- References
- 30
- OpenAlex ID
- https://openalex.org/W4415014077
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https://doi.org/10.1364/oe.577970Digital Object Identifier
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Nanosecond wavelength switching of a 16-channel DFB laser array based on REC technologyWork title
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articleOpenAlex work type
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enPrimary language
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2025Year of publication
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2025-10-10Full publication date if available
- Authors
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Jiaqiang Nie, Zhenxing Sun, Zhiyuan Su, Xianfei Xie, Jie Zhao, Yuxuan Chen, Zijiang Yang, Zhuoying Wang, Wentao Sun, Yue Zhang, Li Mi, Xiangfei ChenList of authors in order
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https://doi.org/10.1364/oe.577970Publisher landing page
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YesWhether a free full text is available
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goldOpen access status per OpenAlex
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0Total citation count in OpenAlex
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30Number of works referenced by this work
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