Der Unterschied zwischen dem einzelnen Modus und einem Multi-Mode-Glasfaser-Kabel

Although single mode fiber (SMF) and multimode fiber cable (MMF) are widely used in diverse applications, the problem about differences between single mode fiber and multimode fiber is still confusing. Therefore, the following article will focus on the basic construction, fiber distance, cost, fiber color, etc., to make an in-depth comparison between single mode and multimode fiber.

Overview of Single Mode vs Multimode Fiber

Single mode means the fiber enables one type of light mode to be propagated at a time. While multimode means the fiber can propagate multiple modes. The differences between single mode and multimode fiber mainly lies in fiber core diameter, wavelength & light source, bandwidth, color sheath, distance and cost.

Difference

• Single mode fiber is one in which only one mode propagate through the fiber whereas Multi mode fiber is one in which multiple mode propagate through the fiber.
• Single mode fiber contains small core whereas Multi mode fiber contains large core.
• Single mode fiber employ for long distance communication whereas Multi mode fiber employ for short distance communication.
• Single mode fiber has less attenuation whereas Multi mode fiber has more attenuation.
• Single mode fiber has lower bandwidth whereas Multi mode fiber has higher bandwidth.
• Single mode fiber allows less dispersion whereas Multi mode fiber allows more dispersion.
• Single mode fiber is less costly whereas Multi mode is more costly.
• Single mode fiber is less difficult to work out whereas Multi mode fiber is more difficult to work out.

Core Diameter

ingle mode fiber core diameter is much smaller than multimode fiber. Its typical core diameter is 9 µm even if there are others available. And multimode fiber core diameter is 50 µm and 62.5 µm typically, which enables it to have higher "light gathering" ability and simplify connections. The cladding diameter of single mode and multimode fiber is 125 µm.

Color Sheath

Single Mode vs Multimode Fiber Distance