Since dispersion is inevitable in optical fibers, dispersioncompensating fibers, such as those sold on. Cisco gs7000 dispersion compensation module in digital transport systems, dispersion is a fiber property that causes light pulses to spread. Cisco gs7000 4way segmentable node 1 ghz with 6586 mhz split data sheet pdf. Chromatic dispersion compensation with negative dispersion fiber. Dispersion management using dispersion compensating fiber with negative cd. The 359c series dispersion compensation module provides a solution for dealing with existing high dispersion legacy installations. Analysis and simulation of dispersion compensation in. Dcm dispersion compensation modules provides fixed. The clearspectrum dcml is a passive chromatic dispersion compensator with. Dispersion limits both the links bitrate and the maximum transmission distance that can be achieved through fiber. The clearspectrumdcmx is an attractive alternative to dispersion compensating fiber dcf in costsensitive networks since its small footprint minimizes space. Each spool is provided in a respective package, which can be slidably inserted into or removed from the housing along a track provided within the housing. The undercompensation fiber having rds fluctuation can be compensated using the proposed dcm. In this case, we selected a postcompensation scheme because it is simple compared to the symmetrical compensation scheme.
Several values of compensation are available that cover from 20 km to 100 km of smf. Dispersion compensation schemes a system perspective. The proposed dcm employed as inline dcf can support 100 gbits. For extremely long fiber transport distances of greater than 80 km, fiber optic dispersion compensation modules are often required. The teraxion clearspectrumdcmx series dispersion compensation module is designed to offer a high compensation level while maintaining very low insertion loss in an ultra small package. Research highlights proposed dispersion compensation module dcm achieved a fourthorder dispersion compensation. We will use an ideal dispersion compensation fbg as the dispersion compensation module see figure 6. The dispersion compensation is designed for protocol transparent data rates between 10 mbps and. Optical characteristics of scdcf module the modules for dispersion compensation of 80km and 120km dsf were fabricated using the fabricated.
Dispersion compensation modules dcm series the arris dcm series is a product family of dispersion compensation modules that increase the transmission distances of 1550 nm analog and digital signals. For fiber optical high bit rate such as 10g or 40g bits longhaul transmission systems. Dcm solutions for chromatic dispersion compensation. Fs dcm is a purely passive module that provides negative dispersion for dwdm transmission systems, increasing transmission range and decreasing ber of optical links. Figure 1 shows schematic diagram of chromatic dispersion compensation in optical transmission system. Dispersion compensation module product specifications. Figure of merit given two links, the figure of merit can say which one is better, this way the higher the figure of merit the better the link. The 359c series dispersion compensation module provides a solution for. A variety of optical dispersion compensation odc techniques have been implemented and many are. Various technologies for dispersion compensation have been investigated so far, such as dispersion compensating fibers dcf utilizing a fundamental mode or a higher order mode 1, a fiber bragg grating 2, a virtual image phased array 3 and planar wave. Dispersion compensation modules the trend in communications toward longer distances, higher bandwidths, and higher data rates has necessitated the use of dispersion slope compensation modules dscms also known as dispersion compensation module dcm.
Nowadays, there are various methods allowing for dispersion compensation in fiber optics, such as dispersion compensation module dcm, disperison compensation fiber dcf, typical bragg grating operation and chirped fiber bragg grating etc. Dispersion compensation module dispersion in optical networks used for data transport, particularly over longer fiber distances, can adversely affect system performance e. Lambdadriver dispersion compensation module em8001600dcm and dcmd, em800dcm datasheet, em800dcm circuit, em800dcm data sheet. Dcm dispersion compensation modules provides fixed chromatic dispersion compensation for highspeed metro core, regional, and extendedhaul dwdm networks. In this case, a tunable compensation module may be necessary at the receiver. Dispersion compensation module for 100 gbits optical. Ncnh dc4520 dispersion compensation module data sheet. It typically connects to the midstage of an oa like edfa, in the long haul transmission system. In digital transport systems, dispersion is a fiber property that causes light pulses to spread. Em316dcm10 smf28 slope matched multichannel cband chromatic dcm dispersion compensation module lc lc cband 10. Fs dcm is a purely passive module that provides negative.
The dispersion compensation module is a purely passive module for compensating differences of velocity of various dwdm wavelengths in optical transmission systems. Dispersion psnmkm 1525 1530 1535 1540 1545 1550 1555 1560 smf nzdsf dispersion shifted fiber 5 05 wavelength nm 10. Suggest writing superpon specs which allow multiple dispersion. The list of acronyms and abbreviations related to dcm dispersion compensation module. It provides a flexible solution to the problem of accumulated chromatic dispersion without having to drop and regenerate the wavelengths on the link, which would otherwise be necessary when.
Multichannel dispersion compensation module specifications ld400 dispersion compensation module ldp30 80km dcm 10 gbps 80km ld1600. The link distance minus the transmission distance of the optical module is the minimum compensation distance, on this basis need to add 20km to ensure enough compensation. Cisco gs7000 4way segmentable node 1 ghz with 4052 mhz split data sheet pdf 942 kb 14jan2008. Teraxion clearspectrumdcmx series dispersion compensation. Gs7000 dispersion compensation module dcm 7023358 cisco. Prisma dispersion compensation module 748799 cisco. The rp photonics buyers guide contains 20 suppliers for dispersion compensation modules. By providing a negative dispersion, fiber with high positive dispersion can be fully compensated. Dispersion compensation module for wdm pon at 5 gbs downstream with various data modulation nidhi agarwal, deepak bansal electronics and communication, global institute of technology, jaipur. Dispersion slope compensation module dcm based on dispersion slope compensating fiber in module package, special for g. Mrv, alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated. The dcm is a totally passive device consisting of a spool of special fiber dispersion compensating fiber dcf that has high negative dispersion. At the extreme wavelengths of a band, dispersion still accumulates and can be a significant problem. Em800dcm datasheet, em800dcm datasheets, em800dcm pdf, em800dcm circuit.
Com also provides other dcm modules that allow long transmission distance extension. The dcm modules are available with any dispersion values from 20km to 120km compensation distance, and can be used both for single channel and multi channels dwdm optical fiber communication systems. Typical dispersion compensation modules can increase the total fiber length by as much as 65%, while. Mrv, alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits. Lambdadriver dispersion compensation module em8001600dcm and dcmd, em800dcmd datasheet, em800dcmd circuit, em800dcmd data sheet. No matter what your link dispersion looks like there is a solution with our continuous fbg dcms. The dcu assembly provides compensation for accumulated chromatic dispersion effect in line and terminal sites of optical telecommunications systems. Dispersion compensation modules dcm also called dispersion compensation unitsdcu can be used for chromatic dispersion compensation and system performance improvement in fiber optical transmission systems. Dispersion compensation modules are use with standard single mode optical fiber g.
This configuration provides higher chromatic dispersion compensation than an individual module can provide figure 4. Teraxion dcmxstandard dispersion compensation module. Consistent with the present invention, a dispersion compensation module is provided which comprises a housing accommodating one or more spools of dcf. Although dispersion is minimized, it is still present. Features and benefits the cisco ons 15216 dispersion compensator shelf figure 1 is a passive mechanical housing that is 1 rack unit 1ru high and fits in a 19 or 23inch rack or bay.
Mrv, alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors. Cisco dispersion compensation unit transceiver 15216. Fs dispersion compensation module fully uses of dcf tech for compensating dispersion in optical fiber with 140km max. A dispersionshifted fiber dsf is designed to have its zero dispersion wavelength in 1. Temperature effects in optical fiber dispersion compensation modules by mikhail shenouda a thesis presented to the university of waterloo in fulfillment of the thesis requirement for the degree of master of science in physics waterloo, ontario, canada, 20 mikhail shenouda 20. Dispersion in optical networks used for data transport, particularly over longer fiber distances, can adversely affect system. The dispersion compensation module is an important component for a long fiber optical link. The olson technology otdcmg series dispersion compensation module operates near 1550nm where ndsf dispersion has a typical value of 17psnmkm.
Mrv lambdadriver dispersion compensation module em8001600dcm and dcmd,alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors. Emcore reserves the right to change the design or specifications at any time. The ape femtocontrol is a compact motorized dispersion compensation unit for optimization of the duration of femtosecond laser pulses in the spectral range of ti. Because of the insertion loss it is often necessary to use these modules with an erbium doped.
Optical specifications designed for optical fiber smf28, single mode fiber itu g. Dispersion compensation module optilab dcms dispersion compensation modules are rackmountable spools of dispersion compensating fiber for dwdm networks. Arriss dc4520 dispersion compensation module is designed to minimize such effects and provide. Modal dispersion, arising from geometrical properties of multimode fiber, are also considerably more severe at 10 gbs than at lower rates. The patch cord dispersion compensation module dcmpc which is the industrys first, combines continuously chirped fbgs into a single patch cord, thereby eliminating the need for additional hardware to be deployed by service providers. Dispersion compensating fiber modules for dispersion. Cisco gs7000 4way segmentable node 1 ghz with 5570 mhz split data sheet pdf 968 kb 18jun2012. On the other hand, for values of c 0 with the same module. These are passive devices that are intended for signals in the 1550 nm range.
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