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arXiv · 2412.04127

Frequency-tunable biphoton generation via spontaneous four-wave mixing

Jiun-Shiuan Shiu·Chang-Wei Lin·Yu-Chiao Huang·Meng-Jung Lin·I-Chia Huang·Ting-Ho Wu·Pei-Chen Kuan·Yong-Fan Chen
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Abstract

We present experimental results on tuning biphoton frequency by introducing a detuned coupling field in spontaneous four-wave mixing (SFWM), and examine its impact on the pairing ratio. This tunability is achieved by manipulating the inherent electromagnetically induced transparency (EIT) effect in the double-$\Lambda$ scheme. Introducing a detuned coupling field degrades the efficiency of EIT-based stimulated four-wave mixing, which in turn reduces the biphoton pairing ratio. However, this reduction can be mitigated by increasing the optical power of the coupling field. Additionally, we observe that blue- and red-detuning the biphoton frequency results in distinct temporal profiles of biphoton wavepackets due to phase mismatch. These findings provide insights into the mechanisms of frequency-tunable biphoton generation via SFWM, and suggest potential optimizations for applications in quantum communication and information processing.

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Jiun-Shiuan Shiu, Chang-Wei Lin, Yu-Chiao Huang, Meng-Jung Lin, I-Chia Huang, Ting-Ho Wu, Pei-Chen Kuan, Yong-Fan Chen. 2024-12-05. Frequency-tunable biphoton generation via spontaneous four-wave mixing. https://arxiv.org/abs/2412.04127

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