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On-chip single-mode thin film lithium niobate laser based on Sagnac loop reflectors

Shupeng YuZhiwei FangZhe Wang ...+6 Ya Cheng
Dec 2022
摘要
We demonstrate an on-chip single-mode Er3+-doped thin film lithium niobate(Er: TFLN) laser which consists of a Fabry-P\'erot (FP) resonator based onSagnac loop reflectors (SLRs). The fabricated Er: TFLN laser has a footprint of6.5 mmx1.5 mm with a loaded quality (Q) factor of 1.6x105 and a free spectralrange (FSR) of 63 pm. We generate the single-mode laser around 1550-nmwavelength with a maximum output power of 44.7 {\mu}W and a slope efficiency of0.18 %.
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