FTL4C1QE2C Finisar Compatible 40GBASE-LR4 QSFP+ Transceiver
Finisar compatible FTL4C1QE2C - Key Features
- Compatibility: Finisar
- Media Type: Single-Mode Fiber (SMF)
- Connector: Double LC/UPC
- Fiber Count: Duplex
- Maximum Distance: 10 km
- Average Link Budget: 6.6 dB
- Tx Wavelength: CWDM 4 Ch
- Supported Data Rate: 44.8 Gbps
- DDM/DOM: Supported
- Temperature Range: Standard 0°-70°C
Finisar FTL4C1QE2C Price
Finisar compatible FTL4C1QE2C Specifications
Form Factor | QSFP+ |
Modulation | NRZ (Non-Return to Zero) |
Media Type | Single-Mode Fiber (SMF) |
Connector | Double LC/UPC |
Fiber Count | Duplex |
Maximum Distance | 10 km |
Average Link Budget | 6.6 dB |
TX Wavelength | 4-channel CWDM (1271/1291/1311/1331 nm) |
RX Wavelength | 4-channel CWDM (1271/1291/1311/1331 nm) |
Supported Data Rate | 44.8 Gbps |
Supported Ethernet Applications | 40G Ethernet (41.25Gbps) |
Optical Transport Network (OTN) Applications | OTU3 (43.01Gbps), OTU3e2 (44.58Gbps) |
SDH/SONET Standards | STM-256 (39.81 Gbps) |
DDM/DOM | Supported |
Transmitter Type | DFB Laser |
Tx Wave Bandwidth | 4 WDM Seperated 1310nm Lanes (13 nm (1271, 1291, 1311, 1331)) |
Average Launch Power (Min) Each Lane | -6 dBm |
Average Launch Power (Max) Each Lane | 3 dBm |
Receiver Type | PIN photodiode |
Average Receiver Sensitivity (Min) Each Lane | -12.6 dBm |
Average Receiver Sensitivity (Max) Each Lane | 3 dBm |
Receiver Overload | 3 dBm |
Temperature Range | Standard 0°-70°C |
Storage Temperature | -40° to 85°C |
Relative Humidity | 5 to 85% |
Power | +3.3V single power supply |
Compliance | IEEE 802.3ba, CE, Class 1 FDA and IEC60825-1 Laser Safety Compliant, INF-8438i, QSFP+ MSA, RoHS, SFF-8436 |
Finisar compatible FTL4C1QE2C Datasheet
v2Complete technical specifications and product details
Finisar compatible FTL4C1QE2C Description
EdgeOptic's FTL4C1QE2C compatible is a Finisar (Coherent)-coded version of the EdgeOptic 40GBASE-LR4 QSFP+ multi-vendor transceiver. It carries 40 Gigabit Ethernet over single-mode fiber to 10 km using four CWDM lanes at 1271, 1291, 1311 and 1331 nm, multiplexed onto a single duplex LC pair. The module is built to IEEE 802.3ba Clause 87 and the QSFP+ MSA (SFF-8436).
Each lane uses a DFB laser transmitting between −6 and +3 dBm, paired with a PIN photodiode receiver rated to −12.6 dBm sensitivity and a +3 dBm overload point, for a 6.6 dB link budget across the 10 km span. The optics run NRZ-modulated traffic at up to 44.8 Gbps aggregate and operate across the 0 to 70 °C commercial range. Digital diagnostics monitoring reports temperature, supply voltage, laser bias, and per-lane optical power over the I2C interface.
The QE designation marks this as the Ethernet variant of the part. The Coherent product page documents the FTL4C1QE2C as a 40GBASE-LR4 Ethernet optic, distinct from the multirate FTL4C1QM-series parts that add OTU3 transport. This compatible drops into any IEEE 802.3ba-compliant 40GBASE-LR4 QSFP+ port. EdgeOptic codes the EEPROM for correct host recognition.
Backed by 15+ years of EdgeOptic compatibility engineering across vendor optical platforms. Ships next business day from EU stock with a lifetime warranty. For volume pricing or deployment questions, contact our sales team.
Frequently Asked Questions
What is the difference between the FTL4C1QE2C and the FTL4C1QM-series?
The FTL4C1QE2C is the Gen 2 Ethernet variant, a 40GBASE-LR4 optic that runs 40 Gigabit Ethernet per IEEE 802.3ba. The FTL4C1QM-series parts are the multirate versions that also carry OTU3 transport. If the application is straight 40GbE over single-mode fiber, the QE2C is the correct part. For OTU3 transport, order the QM variant. Confirm the exact suffix against the Coherent product page before ordering.