Journal Article

PUBDB-2024-01461

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Optical cavity characterization with a mode-matched heterodyne sensing scheme

Spector, A. D. (Corresponding author)DESY* ; Kozlowski, T.DESY*

2024
Optica Washington, DC

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Please use a persistent id in citations: doi:10.1364/OE.527344  doi:10.3204/PUBDB-2024-01461

Report No.: DESY-24-050; arXiv:2404.07597

Abstract: We describe a technique for measuring the complex reflectivity of an optical cavitywith a resonant local oscillator laser and an auxiliary probe laser, each coupled via opposite endsof the cavity. A heterodyne sensing scheme is then used to observe the phase and amplitudeof the interference beat-note between the promptly reflected field and the cavity-transmittedfield injected through the far mirror. Since the local oscillator laser must pass through thecavity before interfering with the probe laser these measurements are not only independent ofthe spatial coupling of either laser to the cavity, but also obtained at the in-situ position of thecavity eigenmode. This technique was demonstrated on a 19 m cavity to measure the individualtransmissivities of each of the mirrors as well as the round-trip optical losses to an accuracy ofseveral parts per million.

Note: L:MB

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Contributing Institute(s):

1. Any Light Particle Search (ALPS)

Research Program(s):

1. 611 - Fundamental Particles and Forces (POF4-611) (POF4-611)
2. DFG project G:(GEPRIS)390833306 - EXC 2121: Quantum Universe (390833306) (390833306)
3. PHGS, VH-GS-500 - PIER Helmholtz Graduate School (2015_IFV-VH-GS-500) (2015_IFV-VH-GS-500)

Experiment(s):

1. Any Light Particle Search

Appears in the scientific report 2024

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Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Preprint Spector, A. D. (Corresponding author)DESY* ; Kozlowski, T.DESY*
Optical cavity characterization with a mode-matched heterodyne sensing scheme
[10.3204/PUBDB-2024-01361]     Files  Fulltext by arXiv.org BibTeX | EndNote: XML, Text | RIS

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