multimode fiber

  1. Inline Fiber Optic Attenuators UPC & APC

    An optical attenuator is a device used to reduce the level of an optical signal, either in free space or in an optical fiber. They are commonly used in fiber optic communications. Optical attenuators used in fiber optic communications systems may use a variety of principles for their functioning. Those using the gap loss principle are sensitive to the modal distribution ahead of the attenuator, and should be used at or near the transmitting end, or they may introduce less loss than intended. Optical attenuators using absorptive or reflective techniques avoid this problem. Because an air gap is subject to variations from contamination etc, attenuators without air gaps (based on doping etc) are more stable over time. The basic types of optical attenuators are fixed, step-wise variable, and continuously variable.
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  2. LC-LC 10gigabit multimode OM3 fiber optic cables starting at $17.99

    LC-LC OM3 Fiber optic cables

    50/125 is one of the most commonly used multimode optical fiber; the other commonly used is 62.5/125 types. The 50 and 125 is measurement by the unit micron. One meter is equal to one million micron. There is a special kind 50/125 multimode fibers, which is called OM3 50/125. People usually refer 62.5/125 as the OM1 MMF, common type 50/125 MMF as OM2, OM3 is also 50/125, but it is different from OM2 because it support 10Gig data transmission. The OM3 50/125 fiber optic cable is also called laser optimized fiber cable. Both OM1 and OM2 multimode cables use the orange color jacket (standard practice for commonly used indoor multimode),
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  3. What makes singlemode & multimode fiber optic cables different?

    Multimode & Singlemode fiber are the five types of fiber in common use. Both fibers are 125 microns in outside diameter - a micron is one one-millionth of a meter & 125 microns is 0.005 inches- a bit larger than the typical human hair. Multimode fiber has light travelling in the core in lots of rays, called modes. It's a bigger core (always 62.5 microns, but sometimes 50 microns) & is used with LED sources at wavelengths of 850 & 1300 nm for slower local area networks (LANs) & lasers at 850 & 1310 nm for networks jogging at gigabits per second or more. singlemode has a much smaller core, only about 9 microns, so that the light travels in one ray. It is used for telephony & CATV with laser sources at 1300 & 1550 nm. Plastic Optical Fiber (POF) is large core (about 1mm)
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