Types of DWDM Optical Transceiver Modules

Dense Wavelength Division Multiplexing (DWDM) technology can use the wavelength of the laser to transmit data in the optical fiber according to bit parallel transmission or string line transmission, and the DWDM optical module is an optical module that combines this technology, so it has high bandwidth. , Long-distance transmission characteristics.

Brief Introduction

DWDM Optical Transceiver Module adopts dense wavelength division multiplexing technology, which can couple different wavelengths of light into a single-core optical fiber for transmission together. These optical modules are designed for high-capacity, long-distance transmission.

Advantages

DWDM Optical Transceiver Module supports pluggable and tunable, and there are 40 channels to choose from, which reduces the demand for independent pluggable modules. According to different requirements, DWDM optical modules have different channel intervals such as 0.4nm, 0.8nm and 1.6nm, which can support long-distance transmission of up to 100km. It’s an effective solution for line bandwidth expansion.

Common Types

1.25G/2.5G DWDM SFP Transceiver

DWDM SFP optical module complies with IEEE802.3 Gigabit Ethernet standard and ANSI Fiber Channel specification. It can provides high-speed serial links with a transmission rate of 100Mbps to 2.5Gbps, and is suitable for interconnection in Gigabit Ethernet and Fiber Channel environments.

10G DWDM SFP+ Transceiver

10G DWDM SFP+ optical transceiver module is the best solution for the highest bandwidth application of 10 Gigabit. It is specially designed for operators and large enterprises to build an extensible , flexible and cost-effective system. The transmission distance can reach up to 80KM, compliant with 10GBASE-ZR /ZW standard, can be used for 10G fiber cable.

10G DWDM XFP Transceiver

The transmission distance of DWDM XFP optical transceiver module can reach up to 80KM, which complies with the current XFP MSA specification. It supports SONET/SDH, 10 Gigabit Ethernet and 10 Gigabit Fiber Channel applications. It is usually used in applications such as 10G Ethernet, 10G Fiber Channel, SONET (Synchronous Optical Network) and SDH (Optical Transmission Equipment).

Functions

The basic function and working principle of the DWDM optical module are the same as other optical modules, which convert electrical signals into optical signals, and then convert optical signals into electrical signals. However, the DWDM optical transceiver is designed for DWDM applications, and it is worth mentioning that it has its own characteristics and functions. Compared with the coarse wavelength division multiplexing (CWDM) optical transceiver module, the DWDM optical module is designed for single-mode fiber. As specified by ITU-T, it operates between the DWDM wavelength of 1528.38 to 1563.86nm (C17 to C61). The DWDM optical transceiver module has a SFP 20-pin connector, which can realize hot-swappable function. Its transmitter part uses a DWDM multi-quantum well DFB laser, and compliance with IEC-60825 standard.