OADM For Single Fiber WDM Systems

Computer and data communications networks always develop and expand due to declining costs, improved performance of computer and networking equipment, the remarkable growth of the web, as well as the resulting increased demand forcommunication bandwidth. Such increased demand is going on both within and between metropolitan areas in addition to within communications networks, including wide area networks, metropolitan area networks, and native area networks. These networks allow increased productivity and using distributed computers or stations with the sharing of resources, the transfer of voice and knowledge, and the processing of voice, data, and related information at the most efficient locations.

Moreover, as organizations have recognized the economical advantages of choosing communications networks, network applications such as e-mail, voice and data transfer, host access, and shared and distributed databases are increasingly used as ameans to increase user productivity. This increased demand, together with the growing number of distributed computing resources, has triggered a rapid expansion of the amount of fiber optic systems required.

An OADM is a component built to extract an individual signal from the multiplexed transmission while allowing the residual signals on the multiplexed transmission to pass through. The OADM also has an add port that can be used to remix theextracted signal with the multiplexed transmission or to transmit other data on the fiber-optic network. The OADM is designed for bi-directional data communication. In optical networks, to tell apart the direction of data travel, the directions are referred to as east and west directions.

OADM is utilized to allow bi-directional data transmission in WDM systems over a single fiber. By reducing the necessary convenience of an optical network from dual fibers to some single fiber, significant cost and bandwidth efficiencies are achieved. The systems and techniques provide redundancy protection in single-fiber bidirectional line ring systems. In the event of a down-stream fiber or device failure, the OADM module receives a signal over a first wavelength from your first direction, shifts the signal in the first wavelength with a second wavelength, and sends the signal back down the fiber it originated in around the second wavelength, thus maintaining the propagation from the signal in the ring system.

Embodiments from the invention connect with OADMs using fused fiber interleavers and/or thin film interleavers. The OADM features a drop portion that extracts optical channels from a multiplexed optical signal as well as an add portion. The add portion features a variety of interleaver procedures in a cascade arrangement. Each stage has at least one fused fiber interleaver. A stage that interleaves probably the most densely packed channelsincludes two fused fiber interleavers. This arrangement, due to the combined effect of the two fused fiber interleavers, results in rapid drop off of a signal that drifts toward an adjacent channel.

In 2013, as the best Chinese fiber optic communication supplier, FiberStore offers the best OADM worldwidely. For puchase of CWDM Mux/Demux module- CWDM MUX and CWDM Demux which can be built to multiplex multiple CWDM channels into 1 or 2 fibers, please arrived at our store. The core of CWDM module application will be the passive MUX/DEMUX unit. The most popular configuration is 1x4, 1x8, 1x16 channels. As well as our CWDM Transceiver series or the wavelength converter series, the bandwidth with the fiber can be utilized inside a economical way. CWDM OADM module is made to optically add/drop one or multiple CWDM channels into 1 or 2 fibers. Whether your network has 1 or 2 cores of fiber, redundant network, ring or linear network design etc, we are able to offer various OADM configurations to tailor satisfy your network architect. Please contact us for more information.