Universal photonic synthetic temporal-mode converter for heterogeneous quantum interconnects
Abstract
We propose a synthetic temporal-mode converter (STC) that combines programmable waveform matching with denser time multiplexing for heterogeneous quantum interconnects. Programmable couplers and optical delays reshape known single-photon temporal waveforms through coherent interference between time bins. Conversion to a common single-bin mode concentrates amplitudes from N bins in ⌈log2N⌉ mixing stages, simultaneously improving temporal indistinguishability and freeing channel time. Simulations yield mode overlaps above 99.9\% for exponential and Gaussian inputs. For N=256 and 0.5 dB loss per stage, STC gives a 45.6-fold higher photon-pair coincidence rate than temporal gating at equal mode overlap for two exponential inputs. Relative to long pulses, the shortened temporal matched mode can support an approximately 41-fold higher photon-pair coincidence rate when the available time-multiplexing capacity is fully utilized.
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BibTeX
@misc{song2026universal,
title = {{Universal photonic synthetic temporal-mode converter for heterogeneous quantum interconnects}},
author = {Joohyung Song and James I. Kwon and Edo Waks and Saikat Guha and Chaohan Cui},
howpublished = {arXiv},
year = {2026},
month = nov,
doi = {10.48550/arxiv.2611.09752},
eprint = {2611.09752},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2611.09752},
note = {CC BY-NC-ND 4.0},
}
RIS
TY - UNPB
TI - Universal photonic synthetic temporal-mode converter for heterogeneous quantum interconnects
AU - Joohyung Song
AU - James I. Kwon
AU - Edo Waks
AU - Saikat Guha
AU - Chaohan Cui
PY - 2026
DA - 2026/11/06
PB - arXiv
DO - 10.48550/arxiv.2611.09752
UR - https://arxiv.org/abs/2611.09752
AB - We propose a synthetic temporal-mode converter (STC) that combines programmable waveform matching with denser time multiplexing for heterogeneous quantum interconnects. Programmable couplers and optical delays reshape known single-photon temporal waveforms through coherent interference between time bins. Conversion to a common single-bin mode concentrates amplitudes from N bins in ⌈log_2N⌉ mixing stages, simultaneously improving temporal indistinguishability and freeing channel time. Simulations yield mode overlaps above 99.9\% for exponential and Gaussian inputs. For N=256 and 0.5 dB loss per stage, STC gives a 45.6-fold higher photon-pair coincidence rate than temporal gating at equal mode overlap for two exponential inputs. Relative to long pulses, the shortened temporal matched mode can support an approximately 41-fold higher photon-pair coincidence rate when the available time-multiplexing capacity is fully utilized.
ER -