|5/13/2005||Cystal Quartz Waveplates Provide λ/4 and λ/2 Wave Retardation|
|A line of zero and very low order crystal quartz waveplates for providing polarization control in lasers and multiplexers at wavelengths to the near IR has been introduced by Meller Optics, Inc. of Providence, Rhode Island.
Meller Crystal Quartz Waveplates are 75 to 150 µm thick to provide λ/4 and λ/2 wave retardation and are much less sensitive to temperature, acceptance angle, and wavelength than typical 1000 µm (1 mm) multiple order waveplates. Polished to a precise finish and ±0.3 µm thickness tolerance, they can be supplied with “V” coat or broadband A/R coatings at ≤0.25% R per surface.
Made from a disc of single crystal quartz, Meller Crystal Quartz waveplates feature ≤1.0 arc second parallelism, 85% clear aperture, transmitted wave-front of λ/10 @.633 µm, and 10-5 scratch-dig surface quality per MIL-PRF-13830. Applications include polarization control in lasers, fiber-optics, and telecommunications. Sapphire waveplates are also offered.
Meller Crystal Quartz Waveplates are priced from $12. to $75. ea., depending upon size and quantity. Literature and pricing are available on request. For more information contact:
Meller Optics, Inc.
Steve Lydon, Marketing
120 Corliss St. / P.O. Box 6001
Providence, RI 02940
(800) 821-0180 FAX (401) 331-0519