Custom 100G QSFP28 ZR4 Optical Transceiver

Product Description

Pushing 100Gbps traffic across 80 kilometers of dark fiber dictates specialized amplification. Standard APD receivers cannot resolve signals subjected to that level of attenuation. The 100G QSFP28 ZR4 transceiver resolves this by placing a Semiconductor Optical Amplifier (SOA) inside the housing. The SOA applies physical optical gain to the incoming beam before electrical decoding occurs. Tuned meticulously in WolonFiber's optical labs, this component provides telecom operators a direct-plug solution for cross-regional backhaul without constructing external repeater nodes.

Key Features

• Strict FEC Enforcement: Host-side Forward Error Correction is an absolute requirement to filter out optical noise generated across 80km spans.

• Massive Thermal Load Routing: The combined heat of the SOA, EML coolers, and APDs is routed through deeply grooved metallic shells to maintain operation under a 6.0W limit.

• Exceptional Link Budget: Delivers a ~30dB optical power budget, providing vast headroom to overcome severe splice and connector losses on old fiber plants.

Application Scenarios

• Long-haul ISP backhaul crossing vast geographical terrains.

• Deep-water or remote desert fiber links where intermediate active equipment cannot be maintained.

Technical Specifications

Engineering FAQs

• Q: Is 100km transmission actually attainable with this module?

  A: The baseline guarantee is 80km. Reaching 100km is contingent on the optical plant's health. If the installed fiber exhibits extremely low attenuation (<0.2dB/km) and Host FEC is engaged, the 30dB budget can sustain 100km.

• Q: Must the host switch support high power levels?

  A: Yes. Drawing up to 6.0W places this transceiver in Power Class 6. The host QSFP28 slot must be explicitly rated to supply and cool this power tier.

• Q: Can I connect two ZR4 modules with a 10-meter patch cord for testing?

  A: No. Connecting a ZR4 back-to-back without high-value inline optical attenuators (minimum 15dB) will cause immediate, permanent catastrophic failure of the SOA and APD array.

• Q: Does WolonFiber test the SOA integrity?

  A: Every ZR4 unit is placed on a testbench simulating 80km of chromatic dispersion and attenuation to verify the SOA gain threshold prior to packaging.