10G Single-mode Transceiver VS. 10G Multi-mode Transceiver

10G Single-mode Optical Transceiver Module (dual fiber)
· Comply with IEEE 802.3ae 10G-LR/ER/ZR optical interface
· The electrical interface complies with SFF-8431
· Support hot swap
· Wavelength 1310nm or 1550nm
· Working temperature: 0 °C to 70 °C
· Low power consumption
· Suitable for 10km-100km single-mode fiber connection

10G Multi-mode Optical Transceiver Module (dual fiber)
· Conforms to IEEE 802.3ae 10G-SR optical interface
· The electrical interface complies with SFF-8431
· Support hot swap
· 850nm VCSEL emitter, PIN photodetector
· The maximum link length is 300m on 2000MHz/km MMF
· Working temperature: 0°C to 70°C

Distances
1. Wavelengths: the working wavelength of the multi-mode optical module is 850nm, and the working wavelength of the single-mode optical module is usually 1310nm and 1550nm.
2. Transmission distances: the longest transmission distance of 10G multi-mode optical modules does not exceed 300M, while the transmission distance of single-mode optical modules is generally above 10KM.
3. Light Sources: multi-mode optical modules use VCSEL lasers as light sources, and single-mode optical modules use DFB/EML lasers or DFB-LD lasers as light sources.
4. Fibers Type: multimode optical modules are used with multimode optical fibers, and single-mode optical modules are used with single-mode optical fibers.
5. Application Scenarios: multi-mode optical modules can only be used for short-distance transmission, suitable for internal interconnection of data centers, and single-mode optical modules are suitable for medium and long-distance metropolitan area network transmission.