Heterogeneously Integrated Squeezed-Light Generation and Detection on a Single Photonic Chip

• URL: http://arxiv.org/abs/2608.13218v1
• Date: Thu, 13 Aug 2026 13:21:51 GMT
• Title: Heterogeneously Integrated Squeezed-Light Generation and Detection on a Single Photonic Chip
• Abstract summary: integrated squeezed-light quantum photonic systems.<n>A two-mode squeezed quantum microcomb comprising 34 quantum modes is measured with approximately 3 dB squeezing.
• Score: 5.694790447569942
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Squeezed light underpins quantum-enhanced sensing and continuous-variable quantum information processing, and integrated photonics offers a route to producing it at scale. Universal to these applications are squeezed-light generation and measurement. Importantly, quantum measurements serve not only as readout but also as active operations in quantum-state evolution. However, integrating squeezed-light generation and photodetection on the same photonic chip has remained challenging because they impose fundamentally conflicting material requirements: low optical loss to preserve quantum correlations, but efficient photon absorption for photodetection. Here, we demonstrate squeezed-light generation, routing, and balanced homodyne detection integrated on a single photonic chip through heterogeneous integration. A two-mode squeezed quantum microcomb comprising 34 quantum modes is measured with approximately 3 dB squeezing. Our work establishes a scalable architecture for fully integrated squeezed-light quantum photonic systems, unifying quantum-state generation, processing, and detection on a single chip.

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