On-chip erbium-doped lithium niobate microcavity laser and spiral waveguide amplifier

Xiongshuo Yan; Yi'an Liu; Jiangwei Wu; Xiangmin Liu; Yuping Chen; Xianfeng Chen

doi:10.1117/12.2600618

15 October 2021 On-chip erbium-doped lithium niobate microcavity laser and spiral waveguide amplifier

Xiongshuo Yan, Yi'an Liu, Jiangwei Wu, Xiangmin Liu, Yuping Chen, Xianfeng Chen

Proceedings Volume 11894, Optoelectronic Devices and Integration X; 118940S (2021) https://doi.org/10.1117/12.2600618
Event: SPIE/COS Photonics Asia, 2021, Nantong, JS, China

Conference Poster

Abstract

Integrated optical amplifiers and light sources are of great significance for photonic integrated circuits (PICs) and have attracted many research interests. Doping rare-earth ions in materials as a solution to realize efficient optical amplifiers and lasing has been investigated a lot. We investigated the erbium-doped lithium niobate on insulator (LNOI). Here, we fabricated a 1-mol% erbium-doped LNOI microdisk with a high-quality factor. C-band laser emission at ∼1530 and ∼1560 nm (linewidth 0.12 nm) from the high-Q erbium-doped LNOI microdisk was demonstrated with 974- and 1460-nm pumping. What’s more, spiral waveguide amplifiers were also fabricated by the CMOS-compatible technique. A maximum internal net gain of 8.3 dB at 1530 nm indicating a net gain per unit length of 15.6 dB/cm with a compact spiral waveguide of 5.3 mm length and ~0.06 mm2 footprint was demonstrated.

Citation Download Citation

Xiongshuo Yan, Yi'an Liu, Jiangwei Wu, Xiangmin Liu, Yuping Chen, and Xianfeng Chen "On-chip erbium-doped lithium niobate microcavity laser and spiral waveguide amplifier", Proc. SPIE 11894, Optoelectronic Devices and Integration X, 118940S (15 October 2021); https://doi.org/10.1117/12.2600618

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