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Photonics Buyers' Guide / Andover Corporation
Full company details
Map4 Commercial Dr.
Salem, NH 03079-2800
United States
Phone: +1 603-893-6888
Fax: +1 603-893-6508
Toll-free: +1 888-893-9992

Optical Bandpass Filters

Photonics Buyers' GuideAndover Optical Bandpass FiltersStandard Bandpass: Andover’s Standard Bandpass filters have been the mainstay of the industry for decades. With our proprietary stabilization and sealing method these filters will generally last for 10-20 years in the field. Their longevity, coupled with their low cost and ready availability, make these a great choice for most applications.

Semi-Custom Bandpass: In order to make it simple for customers to custom- tailor a bandpass fillter for their application, Andover offers a line of Semi-Custom bandpass filters. Their construction is similar to both the Standard Bandpass and High-Transmitting bandpass filter offerings. Wide selection of wavelengths, bandwidths and sizes, and two blocking options.

High-Transmitting Bandpass: Andover’s High-Transmitting Bandpass filters are a variant of the Standard Bandpass filter line. Designed for use with PMTs and photodiodes, they employ only dielectric coatings, and have a blocking range tailored to the detector. This results in higher transmission than their fully-blocked counterparts.

Hard-Coated Narrowband: Our first-surface, hard-coated narrowband filters feature very high transmission and a steep transition to dense blocking from UV- 1200nm. Employing magnetron sputtered, hard-oxide coatings deposited on Borosilicate Glass, they do not utilize any absorbing filter glasses, making them suitable for high temperature applications. Available at wavelengths from 334nm to 1550nm, including all major laser lines and atomic absorption lines.

Hard-Coated Broadband: This line of hard, first-surface coated filters feature very high transmission over a broad range about the wavelength of interest. Our broadband filters employ magnetron sputtered, hard-oxide coatings deposited on Borosilicate Glass and do not utilize any absorbing filter glasses, making them suitable for high temperature applications. They provide a steep transition from a high, peak transmission to OD4 blocking. Available at standard Raman wavelengths: 488, 514, 532, 633, 785nm, as well as other popular wavelengths.

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