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Applied Optics

Applied Optics


  • Vol. 38, Iss. 25 — Sep. 1, 1999
  • pp: 5378–5383

Optical contamination screening of materials with a high-finesse Fabry-Perot cavity resonated continuously at 1.06-µm wavelength in vacuum

Daqun Li, Dennis Coyne, and Jordan Camp  »View Author Affiliations

Applied Optics, Vol. 38, Issue 25, pp. 5378-5383 (1999)

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An optical-loss measurement system based on a resonant Fabry–Perot cavity at 1.06 µm in vacuum has been developed for independent monitoring of the cavity total loss and the optical absorption loss. Maintenance of cavity resonance over a one-month period allows the assessment of long-term degradation of the cavity optics in the presence of outgassing materials, with sensitivities of 5 ppm/yr for total cavity loss and 2 ppm/yr for cavity absorption loss. Test results for light-emitting diodes, Kapton-insulated cable assemblies, and Vac-seal epoxy adhesive are given. Scaling of these results to the optical performance requirements of LIGO is discussed.

© 1999 Optical Society of America

OCIS Codes
(000.2780) General : Gravity
(050.2230) Diffraction and gratings : Fabry-Perot
(140.0140) Lasers and laser optics : Lasers and laser optics
(290.4210) Scattering : Multiple scattering
(300.1030) Spectroscopy : Absorption

Original Manuscript: March 29, 1999
Published: September 1, 1999

Daqun Li, Dennis Coyne, and Jordan Camp, "Optical contamination screening of materials with a high-finesse Fabry-Perot cavity resonated continuously at 1.06-µm wavelength in vacuum," Appl. Opt. 38, 5378-5383 (1999)

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