10-Gigabit Ethernet is basically the faster-speed version of Ethernet. It will support the data rate of 10Gb/s. It will offer similar benefits to those of the preceding Ethernet standard. However, it will not support the half-duplex operation mode. The potential applications and markets for 10-Gigabit Ethernet are enormous. There are broad groups of users who demand 10-Gigabit Ethernet, for example, enterprise users, universities, telecommunication carriers, and Internet service providers. Each market typically has different requirements for link span and cost.
As 10 Gigabit Ethernet (10GbE) is introduced into networks the physical limitations and properties of optical fiber introduce new challenges for a network designer. Due to the increased data rate, fiber effects, such as dispersion (intermodal, chromatic or polarization), become a factor in the achievable distances of 10GbE links. This leaves the network designer with new decisions and trade-offs that he/she must understand and overcome.This paper provides an introduction to the world of optical fiber and covers the unique network design issues that 10GbE introduces into an optical fiber network.
There are two different types of optical fiber: multimode and single-mode. Both are used in a broad range of telecommunications and data networking applications. These fiber types have dominated the commercial fiber market since the 1970’s. The distinguishing difference, and the basis for the naming of the fibers, is in the number of modes allowed to propagate in the core of a fiber. A “mode” is an allowable path for the light to travel down a fiber. A multimode fiber allows many light propagation paths, while a single-mode fiber allows only one light path.
In multimode fiber, the time it takes for light to travel through a fiber is different for each mode resulting in a spreading of the pulse at the output of the fiber referred to as intermodal dispersion. The difference in the time delay between the modes is called Differential Mode Delay (DMD). Intermodal dispersion limits multimode fiber bandwidth. This is significant because a fiber’s bandwidth determines its information carrying capacity, i.e., how far a transmission system can operate at a specified bit error rate.
Fiberstore 10Gigabit Multimode Fiber Products
According to ISO/IEC 11801, which was made in September 2002, multimode fiber are classified and renamed to be OM1, OM2, and OM3. OM1 multimode fiber refer to traditional 62.5/125 cables, OM2 multimode fiber refer to traditional 50/125 cable, OM3 multimode is the name of 10 Gigabit multimode fiber optic cables, which is also 50/125 diameter. The 10g fiber optic cable is also called “Laser Optimized Cable”.
10Gigabit 50/125 OM3 Multimode LC to LC Fiber Optic Patch Cable
Features:
Support 10 Gigabit data transmitting rates
Connectors are with UPC polish
OM3 50/125 fiber optic glass
fully compliant with international industry standard
every piece patch cord is tested during prodution
We supply the LC to LC 10Gigabit OM3 multimode fiber optic cable that can transmit 10G signal. Fiberstore 10Gig fiber optic patch cables are designed to meet this requirement ,these 10 gigabit multimode duplex cables are with aqua OM3 50/125 fiber glass and they are typically used in 10 Gigabit Ethernet,our 10gigabit fiber optic patch cables the bandwidth supported is as specified IEEE802.3z which is for gigbit ethernet. Huihong Tech duplex10gig fiber optic patch cords are manufactured according to TIA-492AAAC-A standard for OM3 cable ,and the typical cable color is as per aqua standard which was developed by Lucent technologies
Fibers are classified in part by their core and cladding dimensions. Single-mode fibers have a much smaller core diameter than multimode fibers. However, the Mode Field Diameter (MFD) rather than the core diameter is used in single-mode fiber specifications. The MFD describes the distribution of the optical power in the fiber by providing an “equivalent” diameter, sometimes referred to as the spot size. The MFD is always larger than the core diameter with nominal values ranging between 8-10 microns, while single-mode fiber core diameters are approximately 8 microns or less. Unlike single-mode fiber, multimode fiber is usually referred to by its core and cladding diameters. For example, fiber with a core of 62.5 microns and a cladding diameter of 125 microns is referred to as a 62.5/125 micron fiber. Popular multimode product offerings have core diameters of 50 microns or 62.5 microns with a cladding diameter of 125 microns. Single-mode fibers also have 125 micron cladding diameters. Fiberstore supply Single-Mode Fiber Optic Patch Cables with a variety of connector options, including sc sc fiber cable, FC/APC, and SC to ST and FC/PC to SMA cables. We also offer Patch Cables with AR-Coated LC,SC,FC,ST connectors for improved fiber-to-free-space coupling, Low-Insertion-Loss Patch Cables, and Mid-IR Patch Cables based on fluoride fiber.
A single-mode fiber, having a single propagation mode and therefore no intermodal dispersion, has higher bandwidth than multimode fiber. This allows for higher data rates over much longer distances than achievable with multimode fiber. Consequently, long haul telecommunications applications only use single-mode fiber, and it is deployed in nearly all metropolitan and regional configurations. Long distance carriers, local Bells, and government agencies transmit traffic over single-mode fiber laid beneath city streets, under rural cornfields, and strung from telephone poles. Although single-mode fiber has higher bandwidth, multimode fiber supports high data rates at short distances. The smaller core diameter of single-mode fiber also increases the difficulty in coupling sufficient optical power into the fiber. Relaxed tolerances on optical coupling requirements afforded by multimode fiber enable the use of transmitter packaging tolerances that are less precise, thereby allowing lower cost transceivers or lasers. As a result, multimode fiber has dominated in shorter distance and cost sensitive LAN applications.
