Quantum-Referenced Spontaneous Emission Tomography
- URL: http://arxiv.org/abs/2212.12521v3
- Date: Sun, 24 Dec 2023 18:09:52 GMT
- Title: Quantum-Referenced Spontaneous Emission Tomography
- Authors: I. I. Faruque, B. M. Burridge, M. Banic, M. Borghi, J. E. Sipe, J. G.
Rarity, and J. Barreto
- Abstract summary: We present a method of tomography that measures the joint spectral phase (JSP) of spontaneously emitted photon pairs from a largely uncharacterized source.
We have demonstrated this method on a photonic integrated circuit for a target micro-ring resonator photon-pair source.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: We present a method of tomography that measures the joint spectral phase
(JSP) of spontaneously emitted photon pairs originating from a largely
uncharacterized ``target" source. We use quantum interference between our
target source and a reference source to extract the JSP with four spectrally
resolved measurements, in a process that we call quantum-referenced spontaneous
emission tomography (Q-SpET). We have demonstrated this method on a photonic
integrated circuit for a target micro-ring resonator photon-pair source. Our
results show that spontaneously emitted photon pairs from a micro-ring
resonator are distinctively different from that of stimulated emission, and
thus cannot in general be fully characterized using classical stimulated
emission tomography without detailed knowledge of the source.
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