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Conferences > CLEO_SI > 2022 > SM3G > SM3G.6

Ultra-Low Threshold Single Mode Surface-Grating DFB Lasers for Chip-Scale Atomic Clocks

Pengfei Zhang, Can Liu, Minwen Xiang, Nanguo Li, Qiaoyin Lu, John F. Donegan, and Weihua Guo

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Abstract

We present an ultra-low threshold-current single-mode surface-grating DFB laser for chip-scale atomic-clocks. The index-coupled surface-grating yields the coupling-coefficient ~300cm−1. The fabricated laser stable single-mode operation with threshold-current and SMSR of 3mA and 40dB, respectively.

© 2022 The Author(s)

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