Loss in long-storage-time optical cavities
Name
1310.1820.pdf
Description
Submitted manuscript
Size
729.22 KB
Format
Adobe PDF
Checksum (MD5)
5edbf3fc9d48f02e58199564ec98fd5c
Author(s)
Isogai, Tomoki
Miller, J.
Kwee, Patrick
Barsotti, Lisa
Evans, M.
Date Issued
November 2013
Journal
Optics Express
Publisher
Optical Society of America
Citation
Isogai, T., J. Miller, P. Kwee, L. Barsotti, and M. Evans. “Loss in Long-Storage-Time Optical Cavities.” Optics Express 21, 24 (November 2013): 30114 © 2013 Optical Society of America
Version
Original manuscript
Abstract
Long-storage-time Fabry-Perot cavities are a core component of many precision measurement experiments. Optical loss in such cavities is a critical parameter in determining their performance; however, it is very difficult to determine a priori from independent characterisation of the individual cavity mirrors. Here, we summarise three techniques for directly measuring this loss in situ and apply them to a high-finesse, near-concentric, 2 m system. Through small modifications of the cavity's length, we explore optical loss as a function of beam spot size over the 1-3 mm range. In this regime we find that optical loss is relatively constant at around 5 ppm per mirror and shows greater dependence on the positions of the beam spots on the cavity optics than on their size. These results have immediate consequences for the application of squeezed light to advanced gravitational-wave interferometers.
MIT Department
LIGO (Observatory : Massachusetts Institute of Technology)
Terms of Use
Creative Commons Attribution-Noncommercial-Share Alike
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DOI of Published Version
https://doi.org/10.1364/oe.21.030114
