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As a high-stability device, fiber pigtail has extremely low insertion loss and reflection loss. It is mainly used to connect fiber couplers, transmission equipment, and ODF racks. In addition, you also know about fiber pigtails. any other knowledge? Let’s take a look at the difference between fiber pigtails and jumpers, the types, types and fusion methods of fiber pigtails.
What is a fiber pigtail?
Optical fiber pigtails are also called pigtails and optical fiber connectors. It is a cable with a connector at one end and no connector at the other end. The end without a connector can be welded with the core of other cables. connected. Fiber pigtails are also often found in fiber optic terminal boxes to connect fiber optic cables and fiber optic transceivers. Fiber pigtails are divided into multimode fiber pigtails and single-mode fiber pigtails. The single-mode fiber pigtail is yellow, with wavelengths of 1310nm and 1550nm, and the transmission distance is 10km and 40km respectively; the multimode fiber pigtail is orange, with a wavelength of 850nm and a transmission distance of 500m, which is used for short-distance interconnection.
What is the difference between fiber pigtails and fiber patch cords?
It should be noted that fiber pigtails and fiber jumpers are not the same concept. The main difference between fiber optic patch cords and fiber optic pigtails is that only one end of the fiber optic patch cord has an active connector, while both ends of the fiber optic patch cord have active connectors. Fiber pigtails are used.
What are the types of fiber pigtails?
There are many types of optical fiber pigtails, such as LC, SC, FC, ST and MTRJ optical fiber pigtails according to the type of optical fiber connectors, and single-mode optical fiber pigtails and multi-mode optical fiber pigtails according to the type of optical fibers. The details are as follows:
According to the type of fiber optic connector
According to the different types of fiber optic connectors, fiber pigtails are mainly divided into five types: LC, SC, ST, FC and MTRJ. The following table lists the model and application information of these five types of fiber pigtails:
Note : Fiber pigtails have female and male fiber optic connectors. Female fiber optic connectors can be connected in fiber distribution boxes and fiber adapter panels, and male fiber optic connectors can be directly inserted into optical modules.
pigtails , such as single-fiber pigtails, multi-fiber pigtails, single-core pigtails, multi-core pigtails, and so on. In addition to the above common types of fiber pigtails, there are bundle fiber pigtails, ribbon fiber pigtails, armored fiber pigtails, and waterproof fiber pigtails. The first two are branchable fiber pigtails. Two are special fiber pigtails. In addition, we can also divide fiber pigtails into sheathed pigtails, unsheathed pigtails, splitter pigtails and custom pigtails according to sheaths and splitters.
According to the application environment
In order to cope with the extremely harsh application environment, people have designed and developed armored fiber pigtails and waterproof fiber pigtails.
Armored fiber pigtail : The outer sheath of the armored fiber pigtail is designed with stainless steel tube, which is durable and provides additional protection for the fiber while improving network reliability.
Waterproof Fiber Pigtails : Waterproof fiber pigtails with a strong outer jacket and watertight sealed header connectors are ideal for harsh environments such as communication towers, cable TV, and the military. It has low insertion loss, high return loss, good interchangeability and repeatable push-pull performance, and is very convenient to use.
By fiber type
Single-mode fiber pigtail : The core diameter of the single-mode fiber pigtail is 9/125 μm, and the color of the outer sheath is usually yellow. One end of it is usually connected to optical modules, optical fiber adapters and other equipment, and the other end is spliced with optical fibers.
Multimode fiber pigtail : The core diameter of the multimode fiber pigtail is 62.5/125μm or 50/125μm, which is the same as the single-mode fiber pigtail structure. According to the ISO/IEC 11801 standard, multimode fiber pigtails can also be divided into OM1, OM2, OM3, and OM4 fiber pigtails. The outer sheath color of OM1 and OM2 multimode fiber pigtails is usually orange, and the color of OM3 and OM4 multimode fiber pigtails is usually orange. The color of the outer sheath of the fiber pigtail is generally aqua.
According to the number of fiber cores
According to the number of fiber cores, fiber pigtails can be divided into 1, 2, 4, 6, 8, 12, 24 or 48 core pigtails. Regardless of the number of fiber cores in the fiber pigtails, they all adopt the structure of “N 1fibers + N 1 connectors”.
According to the composition
Bundled Fiber Pigtails : Also known as pigtails, this fiber pigtail consists of Corning tight-buffered fiber, aramid reinforcing elements, and a PVC outer jacket with flame retardant properties. The main cable of the bundled fiber pigtail is a round cable, and the branch node usually uses a black heat-shrinkable tube instead of a splitter (usually transmitted in the middle of the branch line or trunk line, consisting of a main input end, a main output end and It is composed of several branch output terminals, in which the branch output terminal only obtains a small part of the input signal of the main channel, and most of the signals are still output along the main channel and continue to transmit backwards), which can save costs. So the application is also very wide.
Ribbon fiber pigtail : The ribbon fiber pigtail is the same as the bundle fiber pigtail, both of which are multi-core pigtails. The ribbon fiber pigtail contains 12 core fibers, one end is used for fusion splicing, and the other end is equipped with a connector. The main cable of the ribbon fiber pigtail is a flat cable, and the branch node usually uses a black splitter, because the flat ribbon cable is not easy to fix, and heat shrinkable tubes cannot be used.
According to the sheath material
Optical fiber pigtails are also the same as conventional optical fiber patch cords. They are divided into three types: PVC, LSZH and OFNP optical fiber pigtails due to different materials. PVC optical fiber pigtail is the most common type on the market, with average fire resistance and relatively low price; LSZH optical fiber pigtail has better flame retardant performance and is more expensive; OFNP optical fiber pigtail has the best flame retardant performance and the most expensive price , ideal for data center applications.
In addition, we can also divide the fiber pigtails into pigtails with sheaths and pigtails without sheaths, pigtails with splitters and custom pigtails according to the sheath and splitter, which will not be introduced here. , If you want to know more, you can visit lhdfiber fiber pigtail products.
There are five types of pigtails commonly used in transmission systems:
FC-SC type, that is, the commonly used round-to-square pigtail. The FC is connected to the ODF box, and the SC is connected to the optical port of the device. This kind of fiber optic connector is used more in the early SBS and Optix equipment.
FC-FC type, commonly known as round-to-round pigtail. Generally used as fiber jumpers between ODF racks.
SC-SC type, commonly known as square-to-square pigtail, is generally used for the connection of optical boards between devices.
SC-LC type, LC interface is commonly known as small square pigtail, which belongs to snap-on connector
The LC-LC type is generally used in the internal fiber connection between wavelength division equipment, and this application is relatively rare.
lhdfiber.com provides fiber pigtails with various connector types, and the pigtail type, length, and number of cores can be customized. All products conform to IEC, TIA/EIA, NTT and JIS standards, with low insertion loss and reflection loss, excellent interchangeability and durability, and high stability.
Where are fiber pigtails used?
Fiber pigtails provide interconnection and cross-connection in the network connection of access equipment, and are used in fiber-optic communication systems, fiber-optic access networks, fiber-optic data transmission, fiber-optic CATV, local area networks (LAN), test equipment, fiber-optic sensors, Serial server, FTTH/FTTX, telecom network and pre-terminated installations.
How is the fiber pigtail spliced with the fiber?
The optical fiber fusion splicing technology mainly uses a fiber fusion machine to connect the optical fiber to the optical fiber or the optical fiber to the optical fiber pigtail, and fuse the bare fiber and the optical fiber pigtail in the optical cable together into a whole, and a separate fiber pigtail. The optical fiber head is connected with the optical fiber transceiver to connect the optical fiber and the twisted pair to the information socket.
The main tools used in the optical fiber fusion process are: optical terminal box, optical fiber transceiver, optical fiber pigtail, coupler, special wire stripper, optical fiber cutting knife, etc.
