The domestic fiber-optic component base designed for harsh operating conditions is considered. The main technical characteristics, as well as methods for measuring them, optical fibers, fiber optic cables, optical connectors, combiners, splitters, switches, passive and active fiber optic delay lines, discrete transmitting and receiving optoelectronic modules, optical transceivers and repeaters, are given.
Methods for monitoring the failure-free parameters of fiber-optic components are proposed taking into account their fundamental differences from electronic components.
The book contains practical recommendations for building traditional and original digital fiber optic transmission systems (FOTS), optical hubs, switches, media converters, autonomous power supplies for submarine FOTS nodes, fiber-optic microwave signal distribution systems, fiber-optic phase shifters, active fiber-optic delay lines, microwave optoelectronic generators, optoelectronic ADCs and DACs.
The book is intended for a wide range of readers: students, engineering and technical workers, scientists interested in this topic and professionally associated with the development or operation of fiber optic technology.
Types of optical fibers.
The industry produces single-mode and multimode optical fibers for various applications. To classify the manufactured types of optical fibers, international standards have been developed. The standards were developed by two organizations: the International Telecommunication Union, the Telecommunication Standardization Sector (ITU-T), mainly for fiber consumers, and the International Electrotechnical Commission (IEC), for optical fiber manufacturers.
Consider the ITU-T recommendations regarding the parameters of optical fibers.
G.650 gives general definitions of fiber types, a list of the main characteristics and parameters of single-mode fibers, as well as methods for measuring and monitoring these parameters.
G.651 applies to a multimode optical fiber with a core diameter of 50 μm and a sheath of 125 μm. The recommendation contains the main parameters of these fibers and acceptable standards.
G.652 applies to a standard single-mode fiber with unbiased dispersion (the value of zero chromatic dispersion is in the region of 1310 nm). The field of application of such fibers is fiber-optic transmission lines without spectral densification operating at a wavelength of optical radiation of 1310 nm.
Also check: fiber optic cable certification
G.653 applies to single-mode fiber oriented transmission systems operating at a wavelength of optical radiation of 1.55 microns. As shown above, the attenuation of optical signals in quartz optical fibers at this wavelength is minimal. The fiber according to this recommendation should have a zero dispersion in the region of 1.55 μm, which is achieved by a more complex refractive index profile in the cross-section. Such an optical fiber is called dispersion-shifted fiber. A type of G.653 fiber is used in fiber optic transmission lines without spectral multiplexing operating at a wavelength of optical radiation of 1550 nm.
Methods for monitoring the failure-free parameters of fiber-optic components are proposed taking into account their fundamental differences from electronic components.
The book contains practical recommendations for building traditional and original digital fiber optic transmission systems (FOTS), optical hubs, switches, media converters, autonomous power supplies for submarine FOTS nodes, fiber-optic microwave signal distribution systems, fiber-optic phase shifters, active fiber-optic delay lines, microwave optoelectronic generators, optoelectronic ADCs and DACs.
The book is intended for a wide range of readers: students, engineering and technical workers, scientists interested in this topic and professionally associated with the development or operation of fiber optic technology.
Types of optical fibers.
The industry produces single-mode and multimode optical fibers for various applications. To classify the manufactured types of optical fibers, international standards have been developed. The standards were developed by two organizations: the International Telecommunication Union, the Telecommunication Standardization Sector (ITU-T), mainly for fiber consumers, and the International Electrotechnical Commission (IEC), for optical fiber manufacturers.
Consider the ITU-T recommendations regarding the parameters of optical fibers.
G.650 gives general definitions of fiber types, a list of the main characteristics and parameters of single-mode fibers, as well as methods for measuring and monitoring these parameters.
G.651 applies to a multimode optical fiber with a core diameter of 50 μm and a sheath of 125 μm. The recommendation contains the main parameters of these fibers and acceptable standards.
G.652 applies to a standard single-mode fiber with unbiased dispersion (the value of zero chromatic dispersion is in the region of 1310 nm). The field of application of such fibers is fiber-optic transmission lines without spectral densification operating at a wavelength of optical radiation of 1310 nm.
Also check: fiber optic cable certification
G.653 applies to single-mode fiber oriented transmission systems operating at a wavelength of optical radiation of 1.55 microns. As shown above, the attenuation of optical signals in quartz optical fibers at this wavelength is minimal. The fiber according to this recommendation should have a zero dispersion in the region of 1.55 μm, which is achieved by a more complex refractive index profile in the cross-section. Such an optical fiber is called dispersion-shifted fiber. A type of G.653 fiber is used in fiber optic transmission lines without spectral multiplexing operating at a wavelength of optical radiation of 1550 nm.
Fiber optic handsets remember both a transmitter and a recipient for a similar segment. These are organized in equal with the goal that they can work, web design dubai autonomously of one another. Both the beneficiary and the transmitter have their own hardware with the goal that they can deal with transmissions in the two bearings.
ReplyDeleteFiber optics (optical filaments) are long, Web design uae flimsy strands of extremely unadulterated glass about the measurement of a human hair. They are orchestrated in packs called optical links and used to transmit light signals over significant distances.
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