SM Fiber and MM Fiber

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LDC-100 Large Diameter Optical Fiber Cleaver * Applicable to cladding diameter 80μm~1250μm fibers * Vacuum pump V-groove convenient to put fiber * Durable blade, lifetime more than 20000 times * Data storage 4000 groups * User friendly GUI menu, easy to operate more
S-22 Multi-Core Fiber Fusion Splicer The 1st Fully Automatic Multi-core Fiber Fusion Splicer in China more
Polarization Maintaining (PM) Fiber Fusion Splicer S-12 *Suitable for SM/MM/PM fibers splicing * Core to core alignment, low splicing loss * Endview and Profile observation and alignment * Arc automatic calibration and splicing * PM fiber 45 and 90 degree alignment * Applicable to variety fibers splicing, such as Panda ,bow-tie and elliptical fiber more
S-37 LDF Speialty Fiber Fusion Splicer SHINHO S-37 is the latest model we developed, it could splice fiber cladding diameter from 125 to 680μm with low splice loss. We equipped the machine with 3 different fiber holders, and 2 pairs of spare electrodes. more
Core to Core Alignment Fiber Fusion Splicer X900 Six motors fusion splicer, real core to core alignment technology. Typical splicing time: 6-12 seconds, fast splicing 6 seconds Typical heating time: 18s heating, identify fiber types automatically. Typical splice loss:G651: 0.01dB; G652: 0.02dB; G653: 0.04dB; G654: 0.04dB; G.655:0.04dB; G657:0.02dB. Battery Capacity: 5200mAh Li-battery, typical 300 cycles splicing and heating. Used for WAN/ MAN/ Telecommunication projects. more
Robust Multi Function ARC Fusion Splicer S16 76cm dropping anti-shock, IP5X dustproof and IPX2 water resistant Touch screen display, combined with keypad operation Multi function holder for bare fiber, patch cords, drop cable etc. Fast splicing and heating, automatic ARC calibration. more
SHINHO X-18 Ribbon Fiber Thermal Stripper Shinho X-18 Thermal Stripper is a newly developed hand-held thermal stripper, specially designed for nondestructive thermal stripping of the jacket of ribbon cable up to 12 fibers. A good and reliable tool for ribbon fiber splicing work. more
High Precision Fiber Optic Cleaver X-50D Small size& light weight, easy to operate. High precision and stable performance. More than 48000 time blade life,fiber cleaved length 5~20mm. High quality material more

SM Fiber and MM Fiber

2023-08-25

When the fiber core is so small that only light ray at 0° incident angle can stably pass through the length of fiber without much loss, this kind of fiber is called single mode fiber (SMF). The basic requirement for single mode fiber is that the core be small enough to restrict transmission to a single mode. This lowest-order mode can propagate in all fibers with smaller cores.

Multi mode fiber (MMF), is that that carry more than one mode are called multimode fibers.by comparison, is manufactured with core diameters as small as 50um and as large as hundreds of microns. And there are two types of multimode fibers. One type is step-index multimode fiber and the other type is graded-index multimode fiber.

The differences between single mode and multimode fiber mainly lies in fiber core diameter, wavelength & light source, bandwidth, color sheath, distance and cost.

Core Diameter

The most common type of single mode fiber has a core diameter of 8 to 10 μm and is designed for use in the near infrared (the most common are 1310nm and 1550nm). Please note that the mode structure depends on the wavelength of the light used, so that this fiber actually supports a small number of additional modes at visible wavelengths.

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.

Wavelength & Light Source

Due to the large core size of multimode fiber, some low-cost light sources like LEDs (light-emitting diodes) and VCSELs (vertical cavity surface-emitting lasers) that works at the 850nm and 1300nm wavelength are used in multimode fiber cables. While the single mode fiber often uses a laser or laser diodes to produce light injected into the cable. And the commonly used single mode fiber wavelength is 1310 nm and 1550 nm.

Bandwidth

Multimode fiber bandwidth is limited by its light mode and the maximum bandwidth at present is 28000MHz*km of OM5 fiber. While single mode fiber bandwidth is unlimited theoretically because it allows only one light mode to pass through at a time.

Color

According to the TIA-598C standard definition, for non-military applications, single mode cable is coated with yellow outer sheath, and multimode fiber is coated with orange or aqua jacket.

Distance

Single mode fiber is suitable for long-distance applications, while multimode optical fiber is designed for short-distance runs.

Cost

Compared to single-mode transceivers, the price of multimode transceivers is nearly two or three times lower.

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