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Optics Letters

Optics Letters


  • Vol. 23, Iss. 8 — Apr. 15, 1998
  • pp: 567–569

All-reflective Michelson, Sagnac, and Fabry–Perot interferometers based on grating beam splitters

Ke-Xun Sun and Robert L. Byer  »View Author Affiliations

Optics Letters, Vol. 23, Issue 8, pp. 567-569 (1998)

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All-reflective Michelson, Sagnac, and Fabry–Perot interferometers based on grating beam splitters are experimentally demonstrated at a wavelength of 1064 nm. A 1200-groove/mm grating diffracting 0 and -1 orders with an efficiency of 48.2% for each order was used as a near-50/50 beam splitter. The all-reflective Sagnac and Michelson interferometers were formed by reintroducing both of the diffracted beams back to the grating. The Fabry–Perot interferometer was formed in a Littrow configuration by using a 1700-groove/mm grating with a blazing efficiency of 91% as a cavity coupler. These interferometers encompass all the fundamental configurations of all-reflective laser interferometric gravitational-wave detectors, promising improved wave-front quality by avoiding volume thermal effects in transmissive optics under high-power laser illumination.

© 1998 Optical Society of America

OCIS Codes
(050.1950) Diffraction and gratings : Diffraction gratings
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(230.1360) Optical devices : Beam splitters

Ke-Xun Sun and Robert L. Byer, "All-reflective Michelson, Sagnac, and Fabry–Perot interferometers based on grating beam splitters," Opt. Lett. 23, 567-569 (1998)

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