Source Photonics SPQ-CE-LR-CDFF Compatible 100G 10KM SMF QSFP28

EdgeOptic's SPQ-CE-LR-CDFF compatible is a Source Photonics-coded 100GBASE-LR4 QSFP28 transceiver for 10 km links over G.652 single-mode fiber. The module presents Source Photonics EEPROM vendor identification on the host so it appears in inventory polling and DOM telemetry as a genuine SPQ-CE-LR-CDFF. Source Photonics has been a US-based optical components manufacturer since the early 2000s and continues operating under that brand within Molex's Optical Solutions division following Molex's 2018 acquisition; product part numbers were retained through the transition.

The optical engine multiplexes four 25.78125 Gbps NRZ lanes onto a single SMF pair using LAN WDM at 1295.56, 1300.05, 1304.58 and 1309.14 nm per IEEE 802.3ba Clause 88. The transmitter uses an Electro-absorption Modulated Laser array; the receiver uses a PIN photodiode array. TX power per lane is rated -4.3 to 4.5 dBm with RX sensitivity better than -10.6 dBm. Optical path loss budget is 6.3 dB per IEEE 802.3ba Clause 88, sufficient for 10 km of OS2 fiber including standard connector and splice losses. Aggregate line rate is 103.125 Gbps including the 64B/66B encoding overhead.

Power consumption is typically 3.5 W (Class 3 per SFF-8665) with a maximum of 4.5 W (Class 4 per SFF-8665). Digital diagnostics follow the SFF-8636 management interface, exposing per-lane TX power, per-lane RX power, module temperature, supply voltage and laser bias to the host for in-service link monitoring. Operating temperature is the commercial 0 to 70 C range. The receptacle is LC duplex, the form factor is QSFP28 hot-pluggable, and the unit carries CE and RoHS certifications. Hot-swap behaviour follows the standard QSFP28 cage protocol, physical insertion and removal do not require chassis power-down (port state behaviour after hot-swap is platform-dependent).

Source Photonics modules are MSA-coded by default. On Cisco NX-OS the module may require the 'service unsupported-transceiver' command because the EEPROM does not identify as Cisco. For Arista-, Juniper-, or Cisco-coded versions, contact our sales team for vendor-specific coding. EdgeOptic can program Cisco-coded, Arista-coded or Juniper-coded versions on request when a strict native-acceptance procurement standard applies.

The module ships CE/RoHS certified and complies with QSFP28 MSA SFF-8665 and IEEE 802.3ba 100GBASE-LR4. Backed by 15+ years of EdgeOptic compatibility engineering across vendor optical platforms. Ships next business day from EU stock with a lifetime warranty. For project-quantity pricing or alternative vendor coding, contact our sales team.