| Title: |
Shot-noise limited homodyne detection for MHz quantum light characterisation in the 2 µm band |
| Authors: |
Biele, Jake; Tasker, Joel F; Silverstone, Joshua W; Matthews, Jonathan C F |
| Source: |
Biele, J, Tasker, J F, Silverstone, J W & Matthews, J C F 2022, 'Shot-noise limited homodyne detection for MHz quantum light characterisation in the 2 µm band', Optics Express, vol. 30, no. 5, pp. 7716-7724. https://doi.org/10.1364/OE.450217 |
| Publication Year: |
2022 |
| Collection: |
University of Bristol: Bristol Reserach |
| Subject Terms: |
/dk/atira/pure/core/keywords/qetlabs; name=QETLabs |
| Description: |
Characterising quantum states of light in the 2 μm band requires high-performance shot-noise limited detectors. Here, we present the characterisation of a homodyne detector that we use to observe vacuum shot-noise via homodyne measurement with a 2.07 μm pulsed mode-locked laser. The device is designed primarily for pulsed illumination. It has a 3-dB bandwidth of 13.2 MHz, total conversion efficiency of 57% at 2.07 μm, and a common-mode rejection ratio of 48 dB at 39.5 MHz. The detector begins to saturate at 1.8 mW with 9 dB of shot-noise clearance at 5 MHz. This demonstration enables the characterisation of megahertz-quantum optical behaviour in the 2 μm band and provides a guide of how to design a 2 μm homodyne detector for quantum applications. |
| Document Type: |
article in journal/newspaper |
| Language: |
English |
| Relation: |
info:eu-repo/semantics/altIdentifier/pmid/35299527; info:eu-repo/semantics/altIdentifier/hdl/https://hdl.handle.net/1983/407ac319-11d3-4b2c-afef-6e9aebe76e53 |
| DOI: |
10.1364/OE.450217 |
| Availability: |
https://hdl.handle.net/1983/407ac319-11d3-4b2c-afef-6e9aebe76e53; https://research-information.bris.ac.uk/en/publications/407ac319-11d3-4b2c-afef-6e9aebe76e53; https://doi.org/10.1364/OE.450217 |
| Rights: |
info:eu-repo/semantics/openAccess ; http://creativecommons.org/licenses/by/4.0/ |
| Accession Number: |
edsbas.530A2DC |
| Database: |
BASE |