• Chinese Optics Letters
  • Vol. 20, Issue 11, 111401 (2022)
Yuzhuo Wang1,*, Yizun He1, Lingjing Ji1, Jiangyong Hu1..., Xing Huang1, Yudi Ma1, Liyang Qiu1, Kaifeng Zhao2,3 and Saijun Wu1,**|Show fewer author(s)
Author Affiliations
  • 1Department of Physics, State Key Laboratory of Surface Physics and Key Laboratory of Micro and Nano Photonic Structures (Ministry of Education), Fudan University, Shanghai 200433, China
  • 2Key Laboratory of Nuclear Physics and Ion-Beam Application (Ministry of Education), Fudan University, Shanghai 200433, China
  • 3Institute of Modern Physics, Department of Nuclear Science and Technology, Fudan University, Shanghai 200433, China
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    DOI: 10.3788/COL202220.111401 Cite this Article Set citation alerts
    Yuzhuo Wang, Yizun He, Lingjing Ji, Jiangyong Hu, Xing Huang, Yudi Ma, Liyang Qiu, Kaifeng Zhao, Saijun Wu, "Intense, wideband optical waveform generation by self-balanced amplification of fiber electro-optical sideband modulation," Chin. Opt. Lett. 20, 111401 (2022) Copy Citation Text show less

    Abstract

    We demonstrate a simple method to obtain accurate optical waveforms with a gigahertz-level programmable modulation bandwidth and a watt-level output power for wideband optical control of free atoms and molecules. Arbitrary amplitude and phase modulations are transferred from microwave to light with a low-power fiber electro-optical modulator. The sub-milliwatt optical sideband is co-amplified with the optical carrier in a power-balanced fashion through a tapered semiconductor amplifier (TSA). By automatically keeping TSA near saturation in a quasi-continuous manner, typical noise channels associated with pulsed high-gain amplifications are efficiently suppressed. As an example application, we demonstrate interleaved cooling and trapping of two rubidium isotopes with coherent nanosecond pulses.
    EfEOM,out(t)=eiθ0A(t)cos(ωct+φ(t))Ein(t)=ninJn(θ0A(t))ein(ωct+φ(t))Ein(t).

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    A(t)=Jn01(a(t)Jn0,max)/θn0,φ(t)=ϕ(t)/n0.

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    H(ω)=ηe(ωωA)2/Δω12.

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    H(ωL)/H(ωA)Jn0,max2.

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    Yuzhuo Wang, Yizun He, Lingjing Ji, Jiangyong Hu, Xing Huang, Yudi Ma, Liyang Qiu, Kaifeng Zhao, Saijun Wu, "Intense, wideband optical waveform generation by self-balanced amplification of fiber electro-optical sideband modulation," Chin. Opt. Lett. 20, 111401 (2022)
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