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Laser linewidth at the sub-Hertz level

Roberts, M; Taylor, P; Gill, P (1999) Laser linewidth at the sub-Hertz level. NPL Report. CLM 8

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A number of fields require state of the art low noise laser systems. The report has been written to aid the development of a laser source with a sub-hertz linewidth. The report brings together the most recent work in the field of laser stabilisation, along with a description of the relevant basic principles. There are explanations of the parameters used to describe laser noise and stability (power spectral density, Allan vari-ance, linewidth, modulation index). The effects of perturbation on a laser (plus reference cavity) system are discussed, including vibration, acoustic noise, thermal effects and opto-electrical considerations. The report concludes with a recommended laser system, drawing on the facts learnt during the process of writing this report.

Item Type: Report/Guide (NPL Report)
NPL Report No.: CLM 8
Subjects: Time and Frequency
Time and Frequency > Optical Frequency Standards and Metrology
Last Modified: 02 Feb 2018 13:18
URI: http://eprintspublications.npl.co.uk/id/eprint/1250

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