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Conferences > CLEOPR > 2022 > CFA6G > CFA6G_02

Highly stable laser repeater system with frequency instability below 10-21

T. Akatsuka, H. Imai, K. Arai, H. Sakuma, A. Ishizawa, T. Goh, T. Hashimoto, M. Takamoto, H. Katori, K. Oguri, H. Gotoh, and T. Sogawa

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Abstract

We report an ultralow-noise laser repeater system based on a narrow-linewidth laser and a planar lightwave circuit chip. An out-of-loop measurement demonstrates a record frequency instability of 3 × 10-22 at 30,000 s averaging time.

© 2022 IEEE

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