Don‘t buy Tunable DWDM SFP+ optical modules
0 2021-12-11

Tunable DWDM SFP+ is one of DWDM optical modules. It is usually used in DWDM systems.

Why suggest don‘t buy tunable DWDM SFP+ optical modules?

Because in the market, the price of tunable SFP+ optical modules is usually two to four times that of DWDM SFP+ optical modules.  Really expensive. But it‘s really convenient for engineers to use. Compare to prepare lots of dwdm SFP+, It‘s really costeffective, Can‘t help but want to buy

In traditional DWDM systems, fixed-wavelength SFP+ optical modules are often used as light sources in the field of optical communications. However, with the continuous development, application and promotion of optical communication systems, the shortcomings of DWDM-SFP+ optical modules are gradually exposed. The following are the reasons why adjustable SFP+ optical modules are needed in DWDM systems:
 
On the one hand, a spare SFP+ optical module must be prepared for each DWDM wavelength to avoid unnecessary failures. In traditional DWDM systems, a small amount of additional SFP+ optical modules is sufficient. However, with the development of technology, the number of wavelengths in DWDM 50GHz has now reached hundreds. This means that people must provide as many as hundreds of backup DWDM SFP+ optical modules, which will greatly increase operating costs. Adjustable SFP+ optical modules provide equipment manufacturers and operators with great flexibility, realize the optimization of overall network performance, and greatly reduce existing operators‘ inventory requirements for DWDM SFP+ optical modules.