RP Photonics logo
RP Photonics
Encyclopedia
Technical consulting services on lasers, nonlinear optics, fiber optics etc.
Profit from the knowledge and experience of a top expert!
Powerful simulation and design software.
Make computer models in order to get a comprehensive understanding of your devices!
Success comes from understanding – be it in science or in industrial development.
The famous Encyclopedia of Laser Physics and Technology – available online for free!
The ideal place for finding suppliers for many photonics products.
Advertisers: Make sure to have your products displayed here!
… combined with a great Buyer's Guide!
VLib part of the
Virtual
Library

Large-core Fibers

 <<<  |  >>>

Acronym: LCF

Definition: optical fibers with relatively large fiber core

German: Fasern mit großem Kern

Category: fiber optics and waveguides

How to cite the article; suggest additional literature

A large-core fiber is an optical fiber having a fiber core which is relatively large. It can be a multimode fiber or a single-mode fiber.

Large-core multimode fibers have a core diameter which is well above the typically used 50 μm or 62.5 μm – for example, 100 μm or even 400 μm.

standard and large mode area fiber

Figure 1: Comparison of bare (uncoated) fibers with a standard core size (e.g. 8 μm diameter) and a large core (50 μm diameter).

If a large-core fiber is a single-mode fiber, it also has a large effective mode area. Here, the term large mode area fiber is more common and more appropriate, since the large mode area is a particularly important property: it results in reduced nonlinear effects combined with a high beam quality.

See also: fibers, large mode area fibers, effective mode area
and other articles in the category fiber optics and waveguides

In the RP Photonics Buyer's Guide, 15 suppliers for large-core fibers are listed.

If you like this article, share it with your friends and colleagues, e.g. via social media:

arrow