Why choose BIDI optical module?

The most obvious advantage of BIDI optical modules, such as SFP+ BIDI optical modules or SFP BIDI optical modules, is that they can reduce the number of ports on the optical fiber jumper panel, save the cost of the optical fiber wiring infrastructure, reduce the wiring space, facilitate the management of optical fibers, and reduce the number of optical fibers required.

The price of BIDI optical module (WDM optical module) is higher than that of traditional dual-fiber bidirectional optical module, but the number of optical fibers required for BIDI optical module per unit transmission distance is reduced by half. For many network lines, the cost savings from using less fiber far outweigh the cost of buying a BIDI optical module.

Where is the bidirectional optical module of BIDI applied?

Single fiber Bidirectional is usually used for user access network to complete image and data, voice and other communication at low cost.

What is a single fiber Bidirectional optical module?

BIDI optical module has a compact structure and is mainly used in the field of optical communication, including telecommunications and two-way data communication. Single-fiber Bidirectional, or BIDI, refers to the transmission and transmission of two directions of optical signals in a single fiber at the same time, just like the positive and negative two directions of the lane separated by the separation belt on the road, the vehicles on both sides of the lane in their respective driving, non-interference. However, conventional optical fiber transmission is unidirectional, so to achieve two-way communication requires two optical fibers.

What is the principle of Bidirectional optical module of BIDI?

In order to realize the simultaneous transmission of optical signals in both directions, the Bidirectional optical module of BIDI needs to use different optical wavelengths in both directions. A general optical module has two ports, a transmitting port and a receiving port. The single-fiber Bidirectional optical module has only one port, which is filtered by the filter in the optical module, and can transmit the optical signal of one wavelength and receive the optical signal of another wavelength at the same time, or vice versa

For example, the local end emits an optical signal at 1310 nm and receives an optical signal at 1550 nm. The opposite end USES the exact opposite wavelength, transmitting 1550 nm light and receiving 1310 nm light. Therefore, the module must be used in pairs at both ends of the link. Other commonly used wavelengths for Bidirectional single-fiber optical modules are 1310 nm/1490 nm and 1510 nm/1590 nm

The unidirectional Bidirectional transceiver assembly integrates MQW-to-LD light source, to-pin-TIA (cross-impedance amplifier) detector, optical fiber and other components into one by coaxial coupling process.