Features

• Excellent Transmission from 340 to 800 nm
• Numerical Aperture of 72°
• Suitable for Rugged Environment
• Ø2 and Ø8 mm Core Diameters Available Upon Request
  

Thorlabs' Liquid Light Guides offer outstanding transmission from 340 - 800 nm for white light illumination applications. They provide excellent transmission from the near UV to the far red range (see Transmission Tab) even at a length of 30 m. These light guides are recommended for use with tungsten halogen, xenon or metal halide light sources and can be mounted to an optical breadboard by using one of our VH1 v-mounts, a TR series post and post holder as shown in the application shot above.

The long-term temperature range for the liquid light guides range from -5 to 35 °C. The light guides are offered in lengths of 4', 6', and 8' with a core diameter of either 3 or 5 mm from stock. They can also be offered with 2 or 8 mm core diameters as made-to-order items, or in custom lengths, please contact your local Tech Support office for more details.

Cleaning the Optical End Faces
of Liquid Light Guides

The optical end faces of these liquid light guides are made of fused silica, Teflon and either aluminum, chrome plated brass or stainless steel. All of these materials are very resistant to all common cleaning solvents, making them easy to clean. Please note that when using solvents to clean the end faces, you cannot submerge the tip of the lightguide in the solvent, or use a heavily soaked cleaning pad, as the solvent may get into the light guide, causing damage. If you find that debris from the light guide end cannot be removed by using a solvent, you can gently use a razor blade to clean the tip, making sure that you do not chip the edge of the fused silica glass window.