Journal
PHOTONICS RESEARCH
Volume 10, Issue 3, Pages 697-702Publisher
CHINESE LASER PRESS
DOI: 10.1364/PRJ.449172
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Funding
- Zhejiang Provincial Major Research and Development Program [2021C01199]
- Natural Science Foundation of Zhejiang Province [LD19F050001, LZ18F050001]
- National Natural Science Foundation of China [61961146003, 62105283, 62135012, 91950205, 92150302]
- National Science Fund for Distinguished Young Scholars [61725503]
- National Key Research and Development Program of China [2018YFB2200200, 2018YFB2200201]
- Fundamental Research Funds for the Central Universities
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This article presents a high-performance lithium niobate electro-optic modulator based on a new 2 x 2 Fabry-Perot cavity. It features a compact footprint, low power consumption, and high modulation speeds, making it promising for high-speed data transmission and signal processing.
Fast electro-optic modulators with an ultracompact footprint and low power consumption are always highly desired for optical interconnects. Here we propose and demonstrate a high-performance lithium niobate electro-optic modulator based on a new 2 x 2 Fabry-Perot cavity. In this structure, the input and reflected beams are separated by introducing asymmetric multimode-waveguide gratings, enabling TE0 - TE1 mode conversion. The measured results indicate that the fabricated modulator features a low excess loss of similar to 0.9 dB, a high extinction ratio of similar to 21 dB, a compact footprint of similar to 2120 mu m(2), and high modulation speeds of 40 Gbps OOK and 80 Gbps PAM4 signals. The demonstrated modulator is promising for high-speed data transmission and signal processing. (C) 2022 Chinese Laser Press
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