CWDM passives for 16-Channel CWDM HFC Architectures

To handle increasing bandwidth requirements cable operators are being expected to upgrade their network architectures. These changes are pushing optical fiber deeper to the network. But replacing existing transmission lines with fiber is not one of the most cost-effective methods to expand bandwidth. Improvements in optical filtering decide to make it possible to significantly improve the quantity of wavelengths in one fiber. CWDM has gained prominence in multi-wavelength digital transport architectures because it permits the application of low-cost, un-cooled DFB laser transmitters. Moreover, powering requirements are reduced and reliability is increased weighed against DWDM solutions.

This suite of CWDM passives is specifically made to fulfill the requirements HFC architectures. The CWDM laser is situated in the optical node, that's typically put into an outdoors environment with relatively high temperature changes. These temperature variations place special restrictions for the channel bandwidth in the CWDM passives. The analog nature with the signals transmitted with the HFC network also necessitates a tighter charge of the specifications with the CWDM passives compared to those designed for digital transmission systems.

Scientific-Atlanta 16-Channel CWDM strategy is optimized to the analog transmission in HFC networks simply by using a 16 channel CWDM module. Additionally, it provides a very efficient solution for fiber-poor areas, plus a cost-efficient alternative to DWDM abbreviated to medium distances. CWDM is different from DWDM for the reason that the optical channel spacing relating to the light sources is really a lot greater (20 nm). This wide spacing, along with a good control of the channel boundaries inside the CWDM passives, signifies that variations in the wavelength of reverse transmitters due to temperature changes will not likely lead to loss of signal/service. Thus allows the utilization of un-cooled DFB lasers and for that reason drives on the costs and power consumption significantly while increasing overall reliability.

The CWDM Multiplexer/Demultiplexer is the central component for utilizing CWDM to increase network efficiency by significantly reducing fiber counts. These units are portable obtainable in the industry recognized, LGX-compatible form the answer to allow easy, snap-in mounting in several enclosures and cabinets. The LGX module can be used in the same chassis as coupler/splitters and patching modules to accomplish high-density rack configurations. The MUX/DMUX component is additionally optimized to reduce combined insertion loss at all wavelengths.

What does a CWDM module do? CWDM modules combine or split up to 18 wavelengths right into a single fiber. CWDM technology uses ITU standard 20nm spacing involving the wavelengths, from 1270nm to 1610nm. CWDM Modules utilize thin-film coating and micro optics package technology. They are available in two main configurations: CWDM Multiplexer/Demultiplexer modules and CWDM Add/Drop Multiplexer modules. CWDM Mux/Demux Modules are available in 4, 8 and 16 channel configurations. These modules passively multiplex the optical signal outputs from 4 or more electronic devices, send on them an individual optical fiber and then de-multiplex the signals into separate, distinct signals for input into electronic devices with the opposite end of the fiber optic link. CWDM Add/Drop multiplexer Modules provide you with the capability to add or drop just one wavelength or multi-wavelengths from the fully multiplexed optical signal. This allows intermediate locations between remote sites to gain access to the normal, point-to-point fiber segment linking them. Wavelengths not dropped, pass-through the OADM and keep on in direction of the remote site. Additional selected wavelengths might be added or came by successive OADMS as needed.

CWDM Mux/Demux module- CWDM MUX and CWDM Demux are created to multiplex multiple CWDM channels into a couple of fibers. The core of CWDM Module application could be the passive MUX/DEMUX unit. The normal configuration is 1x4, 1x8, 1x16 channels. Buy CWDM MUX module and CWDM Demux module from fiber optic products worldwide online store with confidence.