Analysis shows fibre Bragg grating filters achieve over 127 dB attenuation in photon experiments, indicating effective noise suppression.
We discuss the use of fibre Bragg grating filters to eliminate the noise associated with a pump signal in single photon experiments. We demonstrate devices with over (127.6±0.3) dB of attenuation and minimal insertion loss.
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Field et al. (2025) studied this question.
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