A brand new Generation of Fiber Optic Cable Equipment Known as Optical Fiber Passive Components

by Oliver Wan sale Optical passive device is really a sort of any light or electrical energy without having external power, by its own to complete some optical function of optical elements, its working principle abide by the theory of geometrical optics and physical optics theory, the formula as well as the various technical indicators, all kinds of test method is closely associated with fiber optics and integrated optics. Components are divided in to the optical connector, optical attenuator, optical coupler and optical isolator. Fiber optic cable equipment of the telecommunication equipment companies include fiber optic passive components.

The classification in the optical connector has the following categories.According to the structure, may be divided into the heart as well as the heart shape. Based on the mode of connection could be divided into butt coupling and coupling lens; Based on the optical fiber could be divided into planar speak to and mutual contacts spherical make contact with, etc. Among them essentially the most used is self-aligning business coupling optical fiber connector, including plane docking kind (FC), direct contact (Pc) and rectangular (SC) optical fiber connectors. Optical attenuator is in a position to specific attenuation optical power devices. Optical attenuator major types are divided into: optical variable attenuator (continuous variable optical attenuator, step variable optical attenuator) and light fixed attenuator. The attenuation of modest variable optical attenuator array of 0 ~ 25 db. Mainly used in the adjusting range is not large optical fiber communication systems engineering, fiber optic information communications network, and so on., as well as the corresponding single mode fiber activities continuous systems.

Optical coupler can make the transmission of optical signals within the special structure of coupling coupling, and redistribution on the device. The classification on the optical coupler are optical discrete component mixture, conical, planar waveguide optical fiber fusion. Melt a tapered coupler is always to remove two (or greater than two) coated layer of optical fiber within a specific way, below the higher temperature heating molten, simultaneously to stretch on each ends, at some point form particular waveguide structure in the double cone in heating zone, it might comprehend the transmission of optical energy coupling. Its functions: this sort of coupler has quite low added loss, very good directivity, environmental stability, versatile handle strategy is basic, low production cost, is suitable for mass production.

Optical isolator in its operating wavelength range, the constructive transfer optical loss is modest, light to reverse transmission loss is quite huge, it's a form of reciprocity of optical passive elements. Polarization optical isolator from the main varieties are relevant has practically nothing to perform with all the polarization, polarization has practically nothing to do and can be divided into single-stage and two-stage kind. Optical isolator kind based on the application and can be divided into the linear and miniaturization. Polarization dependent optical isolator and polarization independent optical isolator would be the difference between the: for the input polarization state of light dependence is quite big, suitable for with laser and other polarization-maintaining device employed in mixture; The latter is practically not influenced by the input polarization of light, suitable for use in optical fiber transmission program.

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Created on Dec 31st 1969 18:00. Viewed 0 times.

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