However, compared to single-mode fibers, the multi-mode fiber bandwidth-distance product limit is lower.
In contrast, the lasers used to drive single-mode fibers produce coherent light of a single wavelength.
It can be used with Ethernet running on twisted pair wiring, single-mode and multimode fiber.
A second example is linearly polarized light entering a single-mode optical fiber.
It delivers serialized data at a line rate of 10.3125 Gbit/s over four wavelengths in single-mode fiber.
Fiber supporting only one mode is called single-mode or mono-mode fiber.
The most common type of single-mode fiber has a core diameter of 8-10 micrometers and is designed for use in the near infrared.
To achieve the best injection efficiency into single-mode fiber, the direction, position, size and divergence of the beam must all be optimized.
Eventually, single-mode fiber became the standard for US telecommunications carriers.
In fiber-optic communications beams with an M close to 1 are required for coupling to single-mode optical fiber.