Custom 50G QSFP28 BiDi Transceiver Module

Product Description

The Custom 50G QSFP28 BiDi transceiver provides a tactical upgrade path for enterprise networks restricted by simplex fiber infrastructure. By utilizing LAN-WDM diplexers to separate transmit and receive paths within a single LC connector, this module eliminates the need for expensive dark fiber leasing. WolonFiber customizes the EEPROM to bypass vendor-lock mechanisms on proprietary core routers, delivering a plug-and-play experience for high-density 50GbE aggregation.

Key Features

• Port Density Optimization: Consolidates high-bandwidth links into a single port/single fiber architecture, freeing up chassis space.

• High-Grade Optics: Features LAN-WDM lasers that operate near the zero-dispersion window of single-mode fiber to preserve PAM4 integrity.

• Robust Thermal Design: The larger QSFP28 housing allows for better internal airflow and thermal pads, maintaining cooler operation than SFP-sized BiDi modules.

Application Scenarios

• Inter-building connectivity where only one dark fiber strand is available in the conduit.

• Upgrading bandwidth between older 100G switches operating in 50G channelized mode.

Technical Specifications

Engineering FAQs

• Q: Does this module work in a standard 100 gig sfp (QSFP28) port?
  A: Yes. You insert this 50G module into the QSFP28 port and configure the switch interface to operate at the 50GbE data rate.

• Q: Why use LAN-WDM for this BiDi module instead of CWDM?
  A: LAN-WDM wavelengths are more tightly focused and optimized for the 1310nm single-mode fiber window, which is critical for maintaining the high-frequency signal of 50G PAM4.

• Q: Can I use this BiDi module on a standard duplex fiber link?
  A: No. This module only has one optical port (Simplex LC). It requires a single strand of fiber and a matching complementary transceiver on the other end.

• Q: What is the benefit of the qsfp28 form factor for BiDi applications?
  A: The larger metal housing provides a superior thermal footprint, ensuring the complex WDM filters and PAM4 DSP stay cool during continuous 24/7 operation.