Frequency-tunable biphoton generation via spontaneous four-wave mixing
- URL: http://arxiv.org/abs/2412.04127v1
- Date: Thu, 05 Dec 2024 12:50:10 GMT
- Title: Frequency-tunable biphoton generation via spontaneous four-wave mixing
- Authors: Jiun-Shiuan Shiu, Chang-Wei Lin, Yu-Chiao Huang, Meng-Jung Lin, I-Chia Huang, Ting-Ho Wu, Pei-Chen Kuan, Yong-Fan Chen,
- Abstract summary: We present experimental results on tuning biphoton frequency by introducing a detuned coupling field in spontaneous four-wave mixing (SFWM)
This tunability is achieved by manipulating the inherent electromagnetically induced transparency (EIT) effect in the double-$Lambda$ scheme.
We observe that blue- and red-detuning the biphoton frequency results in distinct temporal profiles of biphoton wavepackets due to phase mismatch.
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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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