40G QSFP+ BIDI ZR4 80km

Q: What encapsulation types are available for 40G optical modules?

A: There are two primary encapsulation types for 40G optical modules: CFP and QSFP+. Due to the larger size of CFP, the mainstream 40G optical module in the market is QSFP+.

Q: What is the maximum transmission distance supported by 40G optical modules?

A: From the table above, it’s clear that among the various types of 40G optical modules, the one with the longest transmission distance is the 40G QSFP+ ER4 optical module, capable of reaching up to 40KM. Different optical modules designed for varying transmission distances are suited to distinct application scenarios.

Q: In what networks are 40G optical modules primarily used?

A: The application scope of these three 40G optical modules varies due to their differing specifications.

The 40G QSFP+ SR4 optical module is widely used in multimode applications, facilitating short-distance connections between data center equipment. It can be connected to MTP/MPO jumpers for linking two 40G network devices or utilized with MTP/MPO to LC converters for interfacing between 40G and 10G devices.

Both the 40G QSFP+ LR4 and 40G QSFP+ ER4 optical modules typically employ WDM (Wavelength Division Multiplexing) technology to enable the transmission of optical signals over long distances via single-mode fiber.

Q: Are 40G optical modules expensive?

A: Optical modules come in various types, with two popular categories currently available on the market: original (OEM) optical modules and compatible optical modules. Original optical modules tend to command a higher price due to a lack of comprehensive understanding among consumers about the products, which results in inadequate discernment capabilities. Additionally, brand exclusivity and prestige further inflate the prices of these original components. On the other hand, compatible optical modules, while ensuring compatibility with devices, are offered at significantly lower prices. HuaXun Optoelectronics, for instance, is a company that supplies a wide range of compatible optical modules. All their products undergo rigorous testing on original equipment and are backed by comprehensive after-sales services, thereby garnering extensive favor from a broad customer base.