Alcatel Lucent SFP-25G-LR

The Alcatel-Lucent SFP-25G-LR stands apart from generic 25G optics by combining strict MSA compliance with a DFB laser tuned for stable 1310 nm transmission over single-mode fibre. It delivers full 25 Gbps throughput up to 10 km without forward error correction, making it a dependable choice for enterprise aggregation and carrier access links.

Highlights

• 25GBASE-LR SFP28 form factor for 25 Gigabit Ethernet
• 1310 nm DFB laser, PIN receiver, LC duplex connector
• Reach up to 10 km on OS2 (G.652) single-mode fibre
• Digital diagnostics monitoring (DDM/DOM) for real-time health checks
• Hot-pluggable, 3.3 V supply, < 1.0 W power consumption
• Commercial temperature range 0°C to 70°C

In daily use

Deploy this transceiver in 25G switch uplinks, server adapters, or router interfaces where distance and link budget matter. Its low latency and consistent optical output simplify network design, while DDM lets you monitor temperature, voltage, TX/RX power, and laser bias current remotely—reducing troubleshooting time.

Full specifications

• Form Factor: SFP28
• Data Rate: 25 Gbps
• Standard: 25GBASE-LR (IEEE 802.3by, SFP28 MSA)
• Wavelength: 1310 nm
• Max Reach: 10 km
• Fibre Type: Single-Mode (OS2, G.652)
• Connector: LC Duplex
• Transmitter: DFB Laser
• Receiver: PIN
• TX Power: -4 to 4 dBm
• Receiver Sensitivity: < -10.3 dBm
• DDM/DOM: Supported
• Power Supply: 3.3 V
• Power Consumption: < 1.0 W
• Operating Temperature: 0°C to 70°C
• Hot-Pluggable: Yes

Final note

For network architects seeking a proven 25G LR optic with full diagnostics and broad compatibility, the Alcatel-Lucent SFP-25G-LR is a straightforward, high-performance investment.