Detection of broadband squeezed light with a low-noise die-level balanced receiver

TL;DR

This paper demonstrates the generation and detection of broadband squeezed light up to 3.5 GHz using a low-noise die-level balanced receiver, advancing quantum optics measurement techniques.

Contribution

It introduces a low-noise die-level balanced receiver for broadband squeezed light detection, enabling high-frequency quantum state characterization.

Findings

Squeezed light generated up to 3.5 GHz

Effective detection with low-noise die-level receiver

Enhanced quantum state measurement capabilities

Abstract

The generation and detection of squeezed light through spontaneous parametric down-conversion in a nonlinear crystal up to a frequency of 3.5 GHz is presented. We characterize the quantum state with balanced homodyne detection, leveraging a low-noise die-level receiver.