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Edmund Optics has introduced a range near infrared (NIR) linear polarisers with an extended broadband range. They are high contrast, and are ideal for a variety of applications involving low-power NIR lasers, LEDs and other NIR sources. Their broadband range also makes them suitable for telecommunications applications such as fibre optic isolators and couplers.

The Techspec polarisers are fabricated using a thin polymer film sandwiched between two flat pieces of B270 glass.

They provide uniform performance across a broad spectral range, achieving extinction ratios from 40dB at 830 nm to 50dB at 1310 and 1550 nm. The average transmission is greater than 30 per cent for a wavelength range of 750-850nm and 33 per cent for a wavelength range of 1000-2000nm.


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