In 2020, 5G began to embark on the commercial journey, 25G optical module has been widely used in the construction of 5G signal base station. In the 4G era, the single-mode 10G Optical module is mainly used in the forward network. In the 5g era, the best input / output (I / O) performance and fiber capacity of 25G sfp28 optical module are 2.5 times of that of 10G Ethernet, with higher port density and fewer switches and cables, so it is widely used in the construction of 5G forward base station. Next, ETU-Link will introduce the types and applications of 25G optical modules.

25GBase-SR standard

1、SFP-25G-SR optical module: SFP28 package type, wavelength of 850nm, duplex LC connector, multi-mode, operating temperature of 0 °C-70 °C, transmitting optical power of - 8.4 to + 2.4dBm. It is widely used in data center 25G Ethernet and 5G forward CPRI / eCPRI network.

Patch cord collocation scheme:

1. With OM3 fiber, the maximum transmission distance is 70m.

2. With OM4 fiber, the maximum transmission distance is 100m.

25GBase-LR standard

1. SFP-25G-LR optical module: SFP28 package type, wavelength is 1310nm, duplex LC connector, single mode, supporting commercial (0 °C-70 °C) and industrial (- 45 °C-85 °C) operating temperature range, transmitting optical power of - 8.4 - + 2.4dBm. Generally, matched with OS2 single-mode patch cord is widely used in data center 25G Ethernet and 5G forward CPRI / eCPRI network, and the maximum transmission distance can reach 10KM.

25GBase-ER standard

2. SFP-25G-ER optical module: SFP28 package type, wavelength is 1310nm, duplex LC connector, single mode, support commercial grade (0 °C ~ 70 °C) operating temperature range. Generally, matched with OS2 single-mode patch cord is widely used in data center 25G Ethernet and 5G forward CPRI / eCPRI network, with the longest transmission distance of 40KM.

3. 25G CPRI SFP28 ER Lite optical module: SFP28 package type, wavelength of 1310nm, duplex LC connector, single mode, industrial grade (- 45 °C ~ 85 °C) operating temperature range, in line with CPRI / eCPRI standard. Generally, matched with OS2 single-mode patch cord is widely used in data center 25G Ethernet and 5G forward CPRI / eCPRI network, with the longest transmission distance of 40km. Note: the maximum transmission distance through single-mode optical fiber is 30km (FEC is not turned on) or 40km (FEC is turned on).

DIBI technology

4. 25G CPRI BIDI SFP28 optical module: SFP28 package type, wavelength of 1270nm-Tx, 1330nm-Rx, simplex LC connector, single mode, supporting industrial (- 45 °C ~ 85 °C) operating temperature range, in line with CPRI / eCPRI standard. Generally, matched with OS2 single-mode patch cord is widely used in data center 25G Ethernet and 5G forward CPRI /eCPRI network, with the longest transmission distance of 40KM.

CWDM technology

5. 25G CWDM SFP28 optical module: SFP28 package type, wavelength is 1470nm-1570nm (20nm interval), duplex LC connector, single-mode, industrial grade (- 20 °C-85 °C) operating temperature range, in line with CPRI / eCPRI standard. Generally, matched with OS2 single-mode patch cord is widely used in data center 25G Ethernet and 5G forward CPRI / eCPRI network, and the maximum transmission distance can reach 10KM.

DWDM technology

6. 25G DWDM SFP28 optical module: SFP28 package type, fixed wavelength C-band C18-C61 (100GHz interval), duplex LC connector, single-mode, industrial grade (- 20 °C-85 °C) operating temperature range, in accordance with CPRI / eCPRI standard. Generally, matched with OS2 single-mode patch cord is widely used in data center 25G Ethernet and 5G forward CPRI / eCPRI network, and the maximum transmission distance can reach 10KM.

The above is the type of 25G optical module introduced by ETU-LINK. As a professional optical module manufacturer, the above 25G optical module products can be provided. ETU-LINK will continue to provide higher performance products and invest in the construction of 5G forward base station together with operators.