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Optical Coherence Tomography, OCT White Papers
Advantages of VPH Gratings
The term 'diffraction grating' often brings to mind a surface relief grating, with ruled lines and a delicate surface. A transmission grating, however, opens up many new options for the optical designer. In this tech note, we consider one special type: volume phase holographic (VPH) gratings. With superior optical performance and design flexibility in a robust package, VPH gratings are ideal for applications spanning 300 to 2500 nm and 150 to 5000 lines/mm, from laser pulse compression,...
Saving Vision With Light: Five Startup Technologies That Are Revolutionizing Eye Care
Early detection is critical for treating damage and diseases of the eye. Advances in the size, sensitivity, and price of optical components are enabling a new generation of compact, powerful, and affordable ophthalmological imaging tools. These...
Design of Long Working Distance Graded-index Fiber Lens With a Low NA for Fiber-Optic Probe in OCT Application
A fiber-optic probe for optical coherence tomography (OCT) applications typically includes a short section of graded index (GRIN) fiber fused onto a single-mode (SM) fiber. The GRIN fiber acts as a lens to focus the output of the SM fiber and to...
(3 results found)
Mar/Apr 2024
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