Application and advantages of CWDM optical modules

According to the package, the optical module can be divided into GBIC, SFP, XENPAK, SNAP12, X2, XFP, SFP+, QSFP/QSFP+, CFP, CXP, etc. According to the transmission rate, it can be divided into 10G, 25G, 40G, 100G, 200G optical modules, etc. However, what is the CWDM optical module, what are the applications and advantages, do you know?

What is a CWDM optical module?

The CWDM optical module is an optical module that uses CWDM technology to implement the connection between the existing network device and the CWDM multiplexer/demultiplexer. When used with a CWDM multiplexer/demultiplexer, CWDM optical modules can increase network capacity by transmitting multiple data channels with separate optical wavelengths (1270 nm to 1610 nm) on the same single fiber.

What are the packaging methods for CWDM optical modules?

CWDM GBIC optical module

The GBIC is a hot-swappable input/output device that plugs into a Gigabit Ethernet port or slot to complete a network connection. GBIC is also a transceiver standard that is typically used with Gigabit Ethernet and Fibre Channel for primary Gigabit Ethernet switches and routers. A simple upgrade from the standard LH section, using DFB lasers with specific wavelengths, has facilitated the development of CWDMGBIC optical modules and DWDMGBIC optical modules.

CWDM SFP+ optical module

Application and advantages of CWDM optical modules

The CWDM SFP+ZR optical module is a "restriction module" designed for 10G Ethernet, 2G / 4G / 8G / 10G Fibre Channel applications. The optical module transceiver consists of two parts: the transmitter part contains a colded EML laser. The receiver section consists of an APD photodiode and a TIA. All modules meet my laser safety requirements. Digital diagnostics are available through the 2-wire serial interface specified in SFF-8472, which allows real-time access to device operating parameters such as transceiver temperature, laser bias current, transmitted optical power, received optical power, and transceiving voltage.

CWDM XFP optical module

Application and advantages of CWDM optical modules

The CWDM XFP optical module is a low-cost WDM transmission technology for the access layer of the metropolitan area network. The CWDM XFP optical module adopts CWDM technology, which can combine optical signals of different wavelengths and transmit them through one optical fiber through an external wavelength division multiplexer, thereby saving fiber resources. At the same time, the receiving end needs to decompose the complex optical signal using a wave decomposition multiplexer. The CWDM XFP optical module is divided into 18 bands, from 1270nm to 1610nm, separated by 20nm between each two bands.

In principle, the CWDM XFP optical module uses an optical multiplexer to multiplex optical signals of different wavelengths into a single optical fiber for transmission. At the receiving end of the link, the mixed signal in the optical fiber is decomposed into optical demultiplexers into Signals of different wavelengths are connected to the corresponding receiving device.

CWDM SFP optical module

Application and advantages of CWDM optical modules

SFP optical modules combine the space savings of SFF with the flexibility of GBIC. It not only has the size of SFF, but also has the function of GBIC. In addition to its size advantage, the SFP optical module has low power consumption because it operates at 3.3V and the GBIC optical module is 5V. In addition, SFP optical modules provide power, temperature, and voltage level monitoring. As technology evolves to meet both functional and size advantages, CWDM and DWDMSFP optical modules are already being used in Gigabit Ethernet and 2.5Gbps SONET applications. In addition, SFP optical modules have also been developed for 1, 2 and 4 Gbps Fibre Channel applications.

Where is the CWDM optical module applied?

CWDM optical modules are widely used in CATV (cable TV), FTTH (Fiber to the Home), 1G and 2G Fibre Channel, 100M and Gigabit Ethernet, Synchronous Optical Network SONET OC-3 (155Mbps), OC-12 (622Mbps) And OC-48 (2.488Gbps), security and protection systems.

For more information on CWDM optical modules, please visit Yifeiyang Communication (gb.gigalight.com)

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