TECHSPEC Introduces Nd:YAG Harmonic Separators with RoHS Compliance

Press Release Summary:

The Nd:YAG Harmonic Separators are offered in fourteen models with diameters ranging from 12.70 mm and 25.40 mm with wavelengths of 1064 nm, 532 nm, 355 nm and 266 nm. They are used for separating harmonic, frequency-doubled beam from the pump beam. The units are offered with beamsplitter coating on first surface and anti-reflective coating as second surface. The separators are designed for integration at 45° angle of incidence and use precision λ/10 fused silica substrate.

Original Press Release:

TECHSPEC® Nd:YAG Harmonic Separators

Beamsplitter Coating Features Greater Than 95% Transmission

December 18, 2018, Barrington, NJ, USA - Edmund Optics® (EO), the premier provider of optical components, announces the TECHSPEC® Nd:YAG Harmonic Separators. These beamsplitters are used to separate the common harmonic wavelengths of an Nd:YAG laser. The precision mirrors are designed for a wide range of demanding Nd:YAG laser applications.

TECHSPEC® Nd:YAG Harmonic Separators are dichroic mirrors used for separating the harmonic, frequency-doubled beam from the pump beam, which is often outside the laser resonator. The frequency doubled light is reflected to nearly 100%, while most of the pump light is transmitted.

TECHSPEC® Nd:YAG Harmonic Separators have a beamsplitter coating on the first surface, which reflects at least one wavelength and transmits another. The beamsplitter coating features greater than 95% transmission. The second surface has an anti-reflective coating to minimize losses from reflection. Designed for integration at 45° angle of incidence, the harmonic separators are manufactured using a precision λ/10 fused silica substrate that offers excellent optical and thermal performance and stability, along with a surface quality of 10-5. The RoHS compliant mirrors have a thickness of 6.35 ±0.20mm, plate construction, and a clear aperture of greater than 85%.

TECHSPEC® Nd:YAG Harmonic Separators are available in multiple wavelength configurations for maximum system design flexibility. Fourteen models offer diameters of 12.70mm and 25.40mm at common Nd:YAG wavelengths of 1064nm, 532nm, 355nm and 266nm. TECHSPEC® Nd:YAG Harmonic Separators are in-stock and available for immediate delivery.

About EO:

Edmund Optics®is a leading supplier of optics, imaging, and photonics technology for the Life Sciences, Biomedical, Semiconductor, R&D, and Defense markets around the globe. EO designs and manufactures a wide array of multi-element lenses, lens coatings, imaging systems, and optomechanical equipment, while supporting OEM applications with volume production of both stock and custom products. EO's state-of-the-art manufacturing capabilities, combined with its global distribution network, has earned it the position of the world's largest supplier of off-the-shelf optical components. Customers can purchase items by calling 1-800-363-1992, via the catalog or the website at

Editorial Contact:

James Liolin

Lion Associates

Media Relations/Content Marketing

Phone: 914-670-0138


Company Contact:

Michael Deal

Assistant Marketing Manager

Edmund Optics®, Inc.

101 East Gloucester Pike

Barrington, NJ 08007 U.S.A.

Phone: 1-800-363-1992

Fax: 1-856-573-6295


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