NIR bandpass filters from Semrock are optimized for 1.5 μm eye-safe lasers

July 22, 2010
A series of hard-coated bandpass filters are keyed to popular laser lines in the 1500 to 1600 nm region.

A series of hard-coated bandpass filters are keyed to popular laser lines in the 1500 to 1600 nm region. They can be used as laser source cleanup filters or detection filters that pass particular laser wavelengths over the full InGaAs detector range of 850 to 1750 nm. They are optimized for eye-safe lasers in the 1.5 μm range.
Rochester, NY



Near-Infrared Bandpass Filters Now Available from Semrock

ROCHESTER, N.Y., September 11, 2009 – Semrock has announced the release of a new series of bandpass filters that demonstrate the extension of its high-performance optical filter technology to the popular near-infrared wavelength range. These highly reliable, hard-coated bandpass filters are keyed to popular laser lines in the 1500 – 1600 nm region.

The new near-IR filters are ideal as laser source clean-up filters, and as detection filters which pass particular laser wavelengths and virtually eliminate background over the full InGaAs detector range (850 – 1750 nm). They are optimized for the most popular “retina-safe” lasers in the 1.5 um wavelength range, where maximum permissible eye exposures are much higher than in the visible or at the 1064 nm Nd:YAG laser line.

Applications for these filters include laser radar, remote sensing, range-finding, and laser-induced breakdown spectroscopy (LIBS). The near-IR bandpass filters are a good match for Er-doped fiber and glass lasers at 1535 nm, Er-doped fiber and InGaAsP semiconductor lasers at 1550 nm, and Nd:YAG-pumped optical parametric oscillators (OPO’s) at 1570 nm. Standard 25 mm diameter filters are available immediately from stock, with custom sizes available in less than a week.

“Semrock is very pleased to be able to offer NIR optical filter manufacturing capabilities,” said Turan Erdogan, Semrock’s CTO.

About the Author

LFW Staff

Published since 1965, Laser Focus World—a brand and monthly magazine for engineers, researchers, scientists, and technical professionals—provides comprehensive global coverage of optoelectronic technologies, applications, and markets. With 80,000+ qualified print subscribers in print and over a half-million annual visitors to our online content, we are the go-to source to access decision makers and stay in-the-know.

Sponsored Recommendations

Flexible, Thixotropic, One Component Dual Cure Epoxy

Dec. 1, 2023
Master Bond UV23FLDC-80TK is a moderate viscosity, cationic type system that offers both UV light and heat curing mechanisms. It cures readily within 20-30 seconds when exposed...

MRF Polishing

Dec. 1, 2023
Welcome to Avantier, your esteemed partner in optical solutions for over five decades. With a legacy of expert knowledge, we invite you to delve into the realm of precision optics...

Fluorescence Microscopy Part 1: Illuminating Samples for High-Resolution Imaging

Dec. 1, 2023
Illuminating Samples Fluorescence microscopy is a powerful imaging technique widely used in various fields, especially in biomedical research, to visualize and study fluorescently...

Photonics Business Moves: December 1, 2023

Dec. 1, 2023
Here are the top four photonics business moves that made headlines during the week ending December 1, 2023.

Voice your opinion!

To join the conversation, and become an exclusive member of Laser Focus World, create an account today!