Efficient optical parametric amplification in the thin film lithium niobate waveguides
Abstract Prominent platforms based on thin-film lithium niobate (TFLN) are superior integrated-photonics platforms for efficient optical parametric amplification (OPA), however, previously few studies have been systematically reported the gain-boosting performance of TFLN waveguides compared to bulk...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2025-01-01
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| Series: | Scientific Reports |
| Subjects: | |
| Online Access: | https://doi.org/10.1038/s41598-025-87524-4 |
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| Summary: | Abstract Prominent platforms based on thin-film lithium niobate (TFLN) are superior integrated-photonics platforms for efficient optical parametric amplification (OPA), however, previously few studies have been systematically reported the gain-boosting performance of TFLN waveguides compared to bulk LN waveguides. Here, we optimize two TFLN waveguides with dispersion engineering for high-efficiency and ultra-broadband gain of OPA, then report comparative results about the efficient ultra-broadband OPA of TFLN waveguides in the case of low loss, optimized waveguide length and pump power. Note that the efficient ultra-broadband OPA of TFLN waveguides is represented by the peak gain (71.5 dB) covering a wavelength range of more than 160 nm. And the OPA characteristics of optimized TFLN waveguides are investigated, such as power gain coefficient of dB/cm, length gain coefficient of dB/W, and gain bandwidth. Potential of TFLN integrated-photonics platforms with efficient ultra-broadband OPA show no boundary. |
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| ISSN: | 2045-2322 |