The difference between 1310nm and 1550nm SFP (Small Form-factor Pluggable) transceivers lies in the wavelength at which they operate and the distances over which they can transmit data.

1310nm SFP operates at a wavelength of 1310 nanometers and is typically used for shorter distance transmission, usually up to 10 kilometers in single mode fiber optic networks.

1550nm SFP operates at a wavelength of 1550 nanometers and is used for longer distance transmission, typically up to 80 kilometers in single mode fiber optic networks.

In summary, the main difference between 1310nm and 1550nm SFP transceivers is the wavelength at which they operate and the distance over which they can transmit data.

1. What are the differences between optical modules of different wavelengths?

The main difference between optical modules of different wavelengths lies in their operating frequency bands or the spectral range in which they operate. Common wavelengths of optical modules include 850nm, 1310nm and 1550nm. The following are the main differences between optical modules of different wavelengths:

1.1 850nm Optical Module

850nm optical module is usually used for multimode fiber transmission, suitable for short distance and high speed transmission, such as Gigabit Ethernet (GbE) and Fibre Channel (FC). It has lower transmission loss and higher bandwidth for local area network (LAN) and data center applications.

1.2 1310nm Optical Modules

The 1310nm optical module is suitable for single-mode fiber transmission and is suitable for medium-distance and medium-speed transmission. It has a long transmission distance and low transmission loss, and is widely used in wide area networks (WAN) and metropolitan area networks (MAN) and other scenarios that need to span large distances.

1.3 1550nm Optical Module

The 1550nm optical module is also suitable for single-mode fiber transmission, but its main feature is that it can achieve a longer transmission distance. Since the attenuation of optical fiber at 1550nm wavelength is small, it can be used for ultra-long distance transmission, such as fiber optic backbone lines in fiber optic communication networks.

2. How to connect different interfaces of optical modules for transmission?

Optical modules with different interfaces need to be connected accordingly for transmission. The following is an introduction to some common optical module interfaces and their connection methods:

2.1 LC interface optical module

LC interface is a small optical module connector, commonly used in high-density fiber optic connections. In order to connect two LC interface optical modules, LC/LC twisted pair fiber optic patch cords can be used for connection. This connection is simple and easy to use and takes up less space.

2.2 SC Interface Optical Module

SC interface is a common optical module connector, widely used in various fiber optic communication systems. To connect two SC interface optical modules, SC/SC twisted pair fiber optic patch cords can be used. This connection is simple and reliable, and is suitable for lower density fiber optic connections.

2.3 MPO/MTP Interface Optical Module

The MPO/MTP interface is a multi-core fiber optic connector that is mainly used for high-density fiber optic connections. In order to connect two MPO/MTP interface optical modules, MPO/MTP fiber patch cords or MPO/MTP adapter boxes can be used for connection. This type of connection is suitable for high-speed fiber optic communication systems that require the transmission of large amounts of data.

2.4 Other Interface Optical Modules

In addition to the common interfaces mentioned above, there are other types of optical module interfaces, such as ST, FC and SFP. These interfaces are usually used for specific application scenarios or devices. For different types of interface optical modules, it is necessary to select the corresponding fiber optic connectors according to their interface types and follow the corresponding connection methods and standards.

When connecting optical modules with different interfaces, you also need to pay attention to the type and specifications of the optical fiber. Generally speaking, multimode and single-mode optical fibers should not be mixed, because they have different transmission characteristics and operating frequency bands. Ensure that the optical fiber used matches the requirements of the optical module to achieve the best transmission results.

Attention should also be paid to proper fiber connection methods and the quality of fiber optic patch cords. The use of high-quality fiber optic patch cords and proper connection methods can reduce signal loss and improve transmission quality and reliability. Bending, folding or stretching the fiber should also be avoided to prevent fiber breakage or signal attenuation.

In summary, there are differences between optical modules of different wavelengths in terms of operating frequency bands and transmission characteristics. Optical modules with different interfaces need to choose the appropriate fiber optic connectors and connection methods for transmission. When connecting optical modules, you need to make sure that you select the appropriate fiber type, fiber connector and patch cord, and follow the correct connection methods and standards to achieve high-quality and reliable fiber optic transmission.