100G QSFP28 BiDi 10km 1271/1331nm Optical Transceiver
Categories:
Product Highlights:
- 100G QSFP28 BiDi single-fiber transceiver
- 1271nm/1331nm dual-wavelength operation
- Up to 10km over single-mode fiber
- Simplex LC interface
- PAM4 with EML transmitter and PIN receiver
- DDM via I2C with TX_DIS and RX_LOS
Table of Contents
Description
The 100G QSFP28 BiDi Optical Transceiver is a high-performance bidirectional module designed for 100GBASE-LR1-10 BiDi Ethernet transmission over a single strand of single-mode fiber. Operating at dual wavelengths of 1271nm and 1331nm, it supports up to 10km transmission while reducing fiber consumption and simplifying cabling in high-density network environments. The module uses PAM4 optical modulation with an EML laser transmitter and PIN receiver, combined with a CAUI-4 host electrical interface and Simplex LC optical connector. DDM through I2C management, along with TX_DIS and RX_LOS functions, provides convenient monitoring and control for data centers, telecom networks, access networks, and fiber-constrained deployments.
100G QSFP28 BiDi 10km 1271/1331nm Optical Transceiver Spec.
Specification
| Form Factor | QSFP28 |
|---|---|
| Ethernet Standard | 100GBASE-LR1-10 BiDi |
| Data Rate | 100Gb/s |
| Maximum Distance | Up to 10km |
| Fiber Type | Single-Mode Fiber (SMF) |
| Fiber Configuration | Single-Fiber Bidirectional Transmission |
| Optical Modulation | PAM4 |
| Wavelength | 1271nm / 1331nm |
| Optical Interface | Simplex LC |
| Transmitter | EML Laser |
| Receiver | PIN Receiver |
| Electrical Interface | CAUI-4 |
| Electrical Lane Configuration | 4 × 25.78Gb/s NRZ |
| Optical Data Rate | 106.25Gb/s PAM4 |
| Power Supply | Single +3.3V |
| Maximum Power Consumption | 4W |
| Management Interface | I2C |
| Diagnostic Function | DDM, TX_DIS, RX_LOS |
| Operating Temperature | 0°C to +70°C |
Features
- 100Gb/s data transmission
- QSFP28 form factor
- Supports 100GBASE-LR1-10 BiDi applications
- Single-fiber bidirectional transmission
- 1271nm and 1331nm dual-wavelength operation
- Up to 10km transmission over single-mode fiber
- PAM4 optical modulation
- EML laser transmitter and PIN receiver
- CAUI-4 host electrical interface
- Simplex LC optical interface
- DDM via I2C management
- TX_DIS and RX_LOS monitoring functions
Applications
- 100G data center networks
- Fiber-constrained network upgrades
- Telecom networks
- Access networks
- High-density Ethernet deployments
- Single-fiber bidirectional links
- Existing fiber infrastructure upgrades
FAQ
What is the main advantage of the BiDi design?
The BiDi design enables bidirectional 100Gb/s transmission over a single strand of single-mode fiber by using separate wavelengths for the two transmission directions. This helps reduce fiber consumption where fiber availability is limited.
What wavelengths does this transceiver use?
The module uses 1271nm and 1331nm wavelengths for bidirectional optical transmission over a single fiber.
What is the maximum transmission distance?
The transceiver supports transmission distances of up to 10km over compatible single-mode fiber.
What optical connector does it use?
It uses a Simplex LC optical interface, which provides a compact connection for single-fiber bidirectional applications.
Does the module support digital diagnostics?
Yes. The module supports Digital Diagnostic Monitoring (DDM) through the I2C management interface and includes TX_DIS and RX_LOS functions for host-side control and monitoring.
Quality Qulifications and Compliance
To get the detailed certification, please go to the Compliance.
Please Note: Our products comply with all internationally recognized and industry-standard specifications. For customized or special requirement products, we carry out testing and standards in accordance with the conformity criteria specified in the contract.
Related Products
Have Questions? Contact Our Product Experts or Sales Team Today! We Will Fedback You Soon.



















































