Monthly Archives: April 2013

Variable Attenuators Of Fiber Optic Attenuators For Sale From Fiberstore

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What is Optical attenuator?

Optical attenuators are used in optical power attenuation device, it is mainly used for fiber optic system of measurement, signal attenuation for short distance communication system and system test, etc. Optical attenuator require light weight, small volume, high precision, good stability, convenient use, etc. It can be divided into fixed, variable, continuous adjustable several classification.

Sometimes in optical network, people need to reduce the fiber optical power levels from one device to another; Fiber optic attenuator is a device, the function. Unit “dB”, normally from 1 dB optical attenuator to 20 dB measures of fiber optic attenuator, fiber optic attenuation level. This is called a fixed value, fiber optic attenuator, each piece of attenuation of optical fiber attenuator is fixed.

Fiber optic attenuators can be designed to use with various kinds of fiber optic connectors. the attenuators can be female to female which is called bulkhead fiber optic attenuator or male to female which is also called a plug fiber optic attenuator. Bulkhead and plug types are designed without cables, another type inline fiber optic attenuator is designed with a piece of fiber optic cable.

Variable Attenuator:

Three basic types of Fiber optical attenuators are step wise variable, continuously variable and fixed.Fiberstore Hot sales fiber optic attenuators are Variable Attenuators. Variable optical attenuator offer a range of attenuation values. They are used for testing and measurement, or when you need to equalize the power between different signals.Variable fiber attenuator can help user vary the light power injected from a light source into the optical fiber. Important parameter of variable fiber attenuator include its insertion loss, reflection loss and attenuation range. We supply ST, FC, SC, LC variable Optical Attenuators with APC, UPC type. Attenuation range available is from 1dB to 30dB.

Wide range variable & inline fiber optic attenuator

The inline fiber optic attenuator are with more accurate attenuation compared with traditional connector type fiber optic attenuators. what is more ,this fiber optic attenuator is with a precision screw set, by turing it ,the attenuation range can be varied. and this fiber optical attenuator can be with various terminations on the each side of the cable.

Fiber optic attenuator technique data

  • UPC type return loss 50dB or greater
  • APC type return loss 60dB or greater
  • Working wavelength 1310nm or 1550nm

You can buy fiber optic attenuator products in our store with your confidence. Welcome to fs.com to choose your fiber optic products.We supply all the fiber optics products with high quality but low price.

Summarize Optical Splitters From Fiberstore

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Optical Splitters Introduction:

The Fiber Optic Splitter, also named beam splitter, is with multiple input and multiple output end fiber tandem devices, M * N is commonly used to represent a divider with M input and N output.,with coaxial cable transmission system, network system also needs to be light signal is coupled, branch, distribution, and the optical divider is needed for implementation.

Two Kinds Of Fiber Splitters:

Fiber optic splitters are important passive components used in fiber optic communications. Nowadays two kinds of fiber splitters are popular used, one is the traditional fused type fiber optic splitter, which features competitive prices, the other is PLC (planar lightwave circuit) fiber optic splitter ,which is compact size and suit for density applications. Both of these two types fiber splitters has its advantages to suit for different requirement.

Fused Biconic Tapered (FBT) fiber optic splitters are mature technology types, it is low cost and easy to make, but fused fiber optic splitters optical loss are sensitive to wavelength and this is big disadvantages. PLC fiber optic splitters are small size and wide working wavelength, they are more reliable, suitable to use in passive optical network fiber optic splitting, we supply the PLC Splitters including 1*N PLC splitter module and 2*N PLC splitter module .The common configurations are 1×4, 1×8, 1×16, 1×32 and 1×64 PLC Splitters;but 2×4, 2×8, 2×16, 2×32 configurations are also available.

The Theory For Optical Fiber Splitters:

Fiber optic splitter is a device that split the fiber optic light into several parts by a certain ratio.Fiber optic splitters enable a signal on an optical fiber to be distributed among two or more fibers. Since splitters contain no electronics nor require power, they are an integral component and widely used in most fiber optic networks. For example, a 1X4 LC type equal splitting ratio fiber optic splitter can split the fiber optic light signal into four equal 25% parts and sent to the 4 different channels, LC is the connector type on the splitters. Fiber optic splitter key parameters include the optical loss, splitting ratio, isolation, PDL, etc.The diagram below shows how light in a single input fiber can split between four individual fibers (1×4):

Fiber Optic Splitter Features:

  • Single Mode, multimode, and PM fiber types
  • Multiple port configurations
  • Various splitting ratios, 50:50 to 1:99
  • Tube type or Box type
  • PC, UPC, and APC fiber optic connectors
  • Available with FC, SC, ST, LC, and MU terminations

For more information with fiber optic splitters,please visit on fs.com.

A Kind Of Fiber Test Equipment – Visual Fault Locators In Fiberstore

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FiberStore offers many kinds of fiber optic testing equipment. For example,common used fiber optic test equipment included fiber optic power meter, fiber optic light source, fiber multimeter, optical time domain reflectometer (OTDR) and fiber fault locator. In this article,I will detail the Visual Fault Locators.

Visual Fault Locators:

Fiber optic fault locator is a small size and simple test equipment used to locate the optical fiber linking faults, there are several models with different output power. Fiber optic fault locator can detect the bend point or break point of the fiber glass. It is widely used in telecommunications, CATV and fiber optic projects.

Visual fault locator (also called laser fault locator or 650nm fault locator) is a handheld device using 650nm or 635nm visible laser source that emits a bright beam of laser light into a fiber, allowing the user to visually detect a fiber fault for up to 5 km.

Laser Fault Locators provide the capability to trace fiber routes for end-to-end continuity. Locate breaks within the deadzone of an OTDR, bad splices, potential fiber problems caused by imperfections as well as microbends and macrobends. These devices also can be used as fiber identifiers. They can operate on multimode or singlemode fibers independent of the transmission wavelength. Visible beams make results easily noticeable. Laser fault locators are excellent instruments for locating fiber faults and other anomalies where the pulse width of the laser used in OTDRs won’t allow measurements to be made. Applications include LAN, WAN, fiber data links, telephone and CATV.

With these fault locators you can easily isolate high losses and faults in optical fiber cables. The bright beam of 650nm or 635nm red light in a fiber allows you to see a break as a glowing or blinking red light. Two versions are available: one with a universal port for 2.5mm ferrule connectors (FC, SC, ST, E2000, DIN), and one which includes an adapter that allows use with 1.25mm ferrule connectors as well (LC, MU).

Features of FOFS’s line of Visual Fault Locator(Laser Fault Locator):

  •     Both CW and pulsed mode are available
  •     Lightweight (handheld and pen shape available)
  •     Long continuous operation time
  •     Cost effective solution

Besides the Visual Fault Locators,FiberStore also offer a full range of fluke test equipment. From industrial electronic installation, maintenance and service, to precision measurement and quality control, Fluke tools help keep business and industry around the globe up and running. Typical customers and users include technicians, engineers, medical-device manufacturers, and computer network professionals – people who stake their reputations on their tools, and use tools to help extend their personal power and abilities.

Note:When selecting optical fiber test equipment, in addition to want to consider the function and quality of equipment, and some is you should pay attention to:For example, the working wavelength (typical is 1310nm, 1550nm and 850nm), fiber light source type, fiber optic glass type (single mode or multimode), fiber connection interface (like FC, SC) and the system capacity and possible loss range.Fiber optic test equipment working environment is also the factor you should consider, whether you are going to use the fiber test equipment indoor or outdoor, the equipment working temperature, power supply, battery life.

Overview 10G SFP+,X2,XENPAK and XFP Transceiver Modules

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PriceCable offers a full range of Industry compliant SFP+,Xenpak, X2 and 10G XFP transceiver for 10 Gigabit Ethernet deployments.In computer networking,we know that 10 gigabit Ethernet (10GE or 10GbE or 10 GigE) refers to various technologies for transmitting Ethernet frames at a rate of 10 gigabits per second (10×109 or 10 billion bits per second), first defined by the IEEE 802.3ae-2002 standard.

Xenpaks are supported on routers and some Catalyst switches. The small formfactor X2s are supported on the Catalyst Switches. XFPs are supported on routers with Shared Port Adapter (SPA).They provide customers a dual-rate interface for 10 Gigabit Ethernet and Packet-over-SONET/SDH (POS) connectivity.

10 Gigabit Modules

10G SFP+ Modules:

PriceCable 10G SFP+ transceivers are designed for the high performance integrated duplex data transmission over single mode optical fiber. The improved small form-factor pluggable(SFP+) is definitely an enhanced version of the SFP that supports data rates as much as 10 Gbit/s, the newest industry format supported by many network component vendors. The 10GBASE SFP+ modules offer customers a wide variety of 10 Gigabit Ethernet connectivity options for data center, enterprise wiring closet, and service provider transport applications.

10G X2 Modules:

10G X2 Module is a type of 10 Gigabit Ethernet optical transceiver. X2 transceiver is based on Xenpak transceiver module, and it has same function with Xenpak transceiver. X2 Module also can use one transceiver to fulfill all 10G Ethernet optical port function. X2 Transceiver is better for density installation for it is only half size of Xenpark transceivers.Its electrical interface for that host board can also be standardized and it is called XAUI (4 x 3.125 Gb/s).

10G XENPAK Modules:

10G XENPAK Module is a highly integrated, Serial optical transponder module for high-speed, 10Gbit/s data transmission applications. Xenpak transceiver is packed in a 4.8 x 1.4 x 0.7 inch package, use DFB laser components, Xenpak working distance via G652 multimode fiber could reach up to 10km, another important components inside the Xenpak is the MUX/DEMUX parts, it consume 50% of the power and result in the bigger size. XENPAK modules are offered for physical layer interfaces supporting multi-mode and single mode fiber optic cables and InfiniBand copper cables with connectors referred to as CX4. Transmission distances vary from 100 metres (330 ft) to 80 kilometres (50 mi) for fiber and as much as 15 metres (49 ft) on CX4 cable. Newer XENPAKs while using 10GBase-LX4 standard operated using multiple wavelengths on legacy multi-mode fibres at distances of up to 300 metres (980 ft), eliminating the necessity to reinstall cable in a building when upgrading certain 1 Gbit/s circuits to 10 Gbit/s.

10G XFP Modules:

The 10GB XFP transceiver module is a hot-swappable I/O device that plugs into 10-Gigabit ports. The XFP is a standard for transceivers for high-speed computer network and telecommunication links which use optical fiber, and its interface to other electrical components which is called XFI. XFP modules typically operate at near-infrared wavelengths (colors) of 850 nm, 1310 nm or 1550 nm.XFP modules make use of an LC fiber connector type, which makes it easily achieve high port density applications.

PriceCable is an original manufacturer of fiber optic transceivers. Our Optical Transceiver supports Ethernet, Fibre Channel, and Sonet/SDH applications across many switching and routing platforms. If you have any needs for 10G SFP+ Modules, please feel free to contact us.