Fiberstore Supply The Optical Connectors And Optical Attenuators

In the optical fiber field, optical passive components is an important part of the fiber optic communication device. It is a kind of optical components, the process principle to comply with the basic laws of optics and light theory and electromagnetic theory, the technical indicators, formula and a variety of testing methods, and is closely related to the fiber optics, integrated optics; electric passive components are essentially different. Fiber optic cable, which serve as a link, distribution, isolation, filtering the role. Actually there are a variety of optical passive devices used: optical splitter, optical attenuator, optical isolators, connectors(fiber optic SC to ST connectors), jumpers, optical switches.In Fiberstore,you can buy fiber optic products on our store with your confidence. All of fiber optics supplies with high quality but low price.Today,I focused on two commonly used optical passive devices,connectors and optical attenuators.

Optical connectors:

An optical fiber connector terminates the end of an optical fiber, and enables quicker connection and disconnection than splicing. The connectors mechanically couple and align the cores of fibers so light can pass. Better connectors lose very little light due to reflection or misalignment of the fibers.

LC optical connector do you know? Let us to know more info about connector to help you to
understanding them.LC fiber optic connector is a small form factor connector that uses a 1.25 mm ferrule, half the size of the SC fiber optic connector. This can increase the density of fiber optic connector in fiber optic patch panels. Otherwise, it's a standard ceramic ferrule connector, easily terminated with any adhesive. Good performance, highly favored for singlemode. Optical fiber connectors are used in telephone company central offices, at installations on customer premises, and in outside plant applications to connect equipment and cables, or to cross-connect cables.

Most optical fiber connectors are spring-loaded, so the fiber faces are pressed together when the connectors are mated. The resulting glass-to-glass or plastic-to-plastic contact eliminates signal losses that would be caused by an air gap between the joined fibers.

Every fiber connection has two values:

Attenuation or insertion loss
Reflection or return loss.

Optical attenuators:

An optical attenuator is a device used to reduce the power level of an optical signal, either in free space or in an optical fiber. The basic types of optical attenuators are fixed, step-wise variable, and continuously variable.

Variable Optical Attenuator (VOA) is an important passive devices, in optical fiber communications to achieve real-time control of the signal, by attenuation of the transmitted optical power and optical wavelength division multiplexing device (WDM), spectroscopic detector (TAP the PD), erbium-doped fiber amplifier (EDFA), optical devices constitute ROADM VMUX, gain-flattened EDFA modules, can also be used directly in the optical receiver overload protection.In addition, the measurement of the power meter instrumentation, calibration, but also need to use to VOA.

In the Internet，I saw a report it says that there are two main types of optical communication component attenuators and these are variable and fixed. Variable Optical Attenuators (manually controlled and electronically controlled VOAs) represented 68 percent of the worldwide consumption (use) value of fiber optic component-type attenuators used in the selected optical communication applications in 2008; However, in 2013 VOAs are forecasted to increase to 77 percent of the relative market share.So I think the variable optical attenuator is more important.