The difference between BIDI single fiber module and dual fiber module.sfp module price manufacture

BIDI single fiber bidirectional Optical module needs to use different optical wavelengths in the transmission and reception directions to achieve simultaneous transmission of optical signals in both directions. The ordinary Optical module has two ports, one sending port and one receiving port. The single fiber bidirectional Optical module has only one port, which is filtered by the filter in the Optical module to complete the transmission of one wavelength optical signal and the reception of another wavelength optical signal at the same time, and vice versa.

For example, the local end transmits a 1310nm optical signal while receiving a 1550nm optical signal. The wavelength used at the opposite end is exactly opposite to the local end, that is, it emits 1550nm optical signals and receives 1310nm light. Therefore, this module must be used in pairs at both ends of the link. The common wavelengths of single fiber bidirectional Optical module are 1310nm/1490nm and 1510nm/1590nm.

Unidirectional and bidirectional transceiver modules integrate mqw into ld light sources, pin tia (cross impedance amplifier) detectors, splitters, optical fibers, and other components through coaxial coupling technology.

Using WDM technology, different center wavelengths are used in the sending and receiving directions. Bidirectional transmission of optical signals is achieved through a single fiber optic. Generally, the Optical module has two ports, TX is the sending port and Rx is the receiving port;

The BIDI Optical module has only one port, which is filtered by the filter in the Optical module. 1310nm optical signal is sent, 1550nm optical information is received, and vice versa. Therefore, modules must be used in pairs. Its biggest advantage is saving fiber resources.

The common wavelength of the BIDI optical module is 1310nm/1550nm; 1310nm/1490nm; 1510nm/1590nm, of course, CWDM and DWDM also have single fiber bidirectional

Dual fiber bidirectional and bidirectional Optical module have the same effect. The only difference is that customers can choose single fiber or dual fiber according to their own needs.

Single fiber bidirectional Optical module is expensive, but it can save a fiber resource, which is a better choice for users with insufficient fiber resources.

Dual fiber bidirectional Optical module is relatively cheap, but requires more fiber. If the fiber resources are sufficient, you can choose a dual fiber module.