#  Our work "Integrated electro-optic isolator on thin-film lithium niobate" is published in Nature Photonics! 

 





June 30, 2023

 

 

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 Our group has demonstrated high-performance electro-optic-based isolators in thin-film lithium niobate. By taking the advantage of the inherent non-reciprocity of travelling-wave phase modulator, we achieve an isolation ratio of 48-dB with low device insertion loss of 0.5 dB. Additionally, we test the functionality of our optical isolator by interfacing it with an on-chip distributed-feedback (DFB) laser, and verify that the isolator successfully protects the laser linewidth against reflection.

 Read the paper [here](https://www.nature.com/articles/s41566-023-01227-8).

 Read the SEAS press release [here](https://seas.harvard.edu/news/2023/06/first-its-kind-integrated-optical-isolator).



 

 

 



 

 

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