DWDM Technology/Module/Products for Sale, DWDM Manufacturer/Supplier

DWDM Products

DWDM Technology (dense wavelength division multiplexing) can combine multiple optical wavelengths and transmit them with one optical fiber. This is a laser technology used to improve the bandwidth of the existing optical fiber backbone network. More specifically, the DWDM technology multiplexes the close spectral spacing of a single optical fiber carrier in a specified optical fibre to facilitate the achievable transmission performance (for example, to achieve the minimum degree of dispersion or attenuation), so that the total number of optical fibers required can be reduced under a given information transmission capacity.

The wavelength range of DWDM technology is 1525nm-1565nm (C-band) and 1570nm-1610nm (L-band). It is a small section taken from the CWDM wavelength range. The commonly used is 1525nm-1565nm (C-band). The wavelength interval of this band range is 0.8nm.

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DWDM Working Principle

Dense Wavelength Division Multiplexing (DWDM) relies on the optical carriers and can transmit multiple electrical information at the same time. However, only one optical fiber can complete the optical fiber communication technology required by the system capacity expansion. It forms a transmitter through several optical signals with different wavelengths. After multiplexing, it starts transmission and enters the optical fiber amplifier. Then the optical signal is separated and demultiplexed and transmitted to their respective terminals for the reception. Because only one optical fiber can complete the needs of multiple virtual path transmissions, it can reduce many costs and make full use of resources. Therefore, compared with traditional systems, the dense wavelength division multiplexing system (DWDM system) has strong advantages. It can not only maximize the use of broadband but also continuously expand the capacity of the network and optimize the structure. The process is simple and clear, but also very flexible. It has great potential and space in the field of optical fiber communication.

Features of DWDM Products

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With Lower Insert Loss and Not Sensitive for Direction

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Comply with GR-1221, RoHs and GR-1209

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High Stability and Reliability

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Can Be Used Widely in Passive Next Work, Catv, Pon Net Work and So on

Advantages of DWDM Products

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DWDM Technology Allows Different Wavelengths

The loss is not sensitive to the transmission light wavelength and can meet the transmission needs of different wavelengths.

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DWDM Transmission is Uniform

With uniform light splitting, the signal can be evenly distributed to users.

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DWDM Technology Saves Space

With compact structure and small volume, DWDM can be directly installed in various existing handover boxes without special design, leaving a lot of installation space.

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DWDM Technology Has Many Channels

There are many shunt channels for a single device, which can reach more than 32 channels.

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DWDM Technology is Cost-effective

The cost of multi-channel is low, and the more the number of branches, the more obvious the cost advantage.

FAQs of DWDM

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What are the benefits of DWDM technology?

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Increased bandwidth: DWDM allows for the transmission of multiple data signals simultaneously, significantly increasing the capacity of the fiber.

Cost-effective: Reduces the need for additional physical fibers, cutting down on infrastructure costs.

Long-distance transmission: DWDM is ideal for long-haul communication, as it can transmit signals over large distances with minimal signal loss when amplified.

Scalability: DWDM networks are easily expandable by adding more wavelengths as needed.

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What is a DWDM multiplexer and demultiplexer?

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A DWDM multiplexer combines multiple data streams into one fiber by placing them on different wavelengths.

A DWDM demultiplexer separates these combined signals back into individual streams at the receiving end.

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Can DWDM work with both single-mode and multi-mode fibers?

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DWDM is primarily designed for single-mode fibers, which are optimized for long-distance, high-capacity transmissions. It is not generally used with multi-mode fibers, which are better suited for short-distance applications.