home products Optical Transceivers QSFP+ Transceivers 40GBASE-LR4 2km Gen2 Lite QSFP+ Transceiver
40GBASE-LR4 2km Gen2 Lite QSFP+ Transceiver
Coherent | Finisar

40GBASE-LR4 2km Gen2 Lite QSFP+ Transceiver

Manufacturer: Coherent | Finisar

Datasheet: FTL4C1QL2L

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Product Detail

The FTL4C1QL2L QSFP+ optical transceiver modules are engineered for operation in 40 Gigabit Ethernet connections over single mode fiber. These modules adhere to the QSFP+ MSA standards and are compatible with IEEE 802.3ba 40GBASE-LR4 up to a distance of 2km. They also feature digital diagnostic functions accessible through an I2C interface, as outlined by the QSFP+ MSA.

40GBASE-LR4 2km Gen2 Lite QSFP+ Transceiver
FTL4C1QL2L QSFP+ optical transceiver modules are designed for use in 40 Gigabit Ethernet links over single mode fiber
Coherent | Finisar

Features & Benefits

  • Supports 41.2 Gb/s aggregate bit rates
  • Lite case temperature range 15°C to 60°C
  • Power dissipation
  • RoHS compliant
  • Single 3.3V power supply
  • Maximum link length of 2km on Single Mode Fiber (SMF)
  • Uncooled 4x10Gb/s CWDM transmitter
  • XLPPI electrical interface
  • Duplex LC receptacles
  • Built-in digital diagnostic functions, including Tx/Rx power monitoring

Technical Specifications

Data Rate (max)41.2 Gb/s
Distance2 km
Form FactorQSFP+
High End Case Temperature (°C)60
Low End Case Temperature (°C)15
Protocol10 Gigabit Ethernet Compatible 40G Ethernet Compatible IB QDR Compatible
Transmitter4x DFB Laser
Voltage Supply3.3
Wavelength1310nm Band


Coherent | Finisar

Coherent Corp. is a global leader in materials, networking, and lasers for the industrial, communications, electronics, and instrumentation markets. The company is headquartered in Saxonburg, Pennsylvania. It was founded in 1971 to manufacture high-quality materials and optics for industrial lasers. Today, the company operates in more than 20 countries around the world. Coherent is focused on delivering innovations that fuel market megatrends while pursuing our mission of enabling the world to be safer, healthier, closer, and more efficient. Coherent empowers market innovators to define the future through breakthrough technologies, from materials to systems.

Learn about Coherent | Finisar

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