800GBASE QSFP-DD  2VSR4/2xSR4
800GBASE QSFP-DD  2VSR4/2xSR4

800GBASE QSFP-DD 2VSR4/2xSR4 PAM4 850nm 50m DOM Dual MPO-12/APC MMF Optical Transceiver

TLP-QDD-800G-SR8-M12

Built-in Broadcom 7nm DSP Chip, Max. Power Consumption 16W

Support 850Gb/s Aggregate Bit Rate

High-speed Connectivity Compliant to IEEE 802.3ck

Hot Pluggable QSFP-DD MSA Compliant

Compliant with CMIS Rev 5.0

8x 106.25G PAM4 Retimed 8x 100GAUI-1 C2M Electrical Interface

The 800GBASE-SR8 QSFP-DD optical transceiver module is designed for 800GBASE Ethernet throughput up to 50m link lengths over OM4 multimode fiber (MMF) using a wavelength of 850nm via dual MTP/MPO-12 APC connectors. This transceiver is compliant with IEEE 802.3df, IEEE 802.3ck QSFP-DD HW Rev 6.2, and CMIS Rev 4.0 standards. The built-in digital diagnostics monitoring (DDM) allows access to real-time operating parameters. This module has 2x MPO-12 connectors, supports 2x 400G SR4 breakout applications. Featured with low latency, low power, and reliability, the product is suitable for 800G Ethernet, Data Center, high-performance computing networks, enterprise core and distribution layers, and service provider applications.
Specification
[Form Factor],[QSFP-DD]|[Distance],[50m]|[Wavelength],[850nm]|[Connector],[Dual MPO-12 APC]|[Power Consumption],[≤16W]|[Transmitter],[VCSEL]|[Receiver],[PIN]|[Media],[MMF]|[Modulation (Electrical)],[8x 100G-PAM4]|[Modulation (Optical)],[8x 100G-PAM4]|[Case Temperature (℃)],[0~70°C (32 to 158°F)]|[Application],[800G Ethernet]|
Design and Simulation


Scheme Design

Industry-standard approach using an edge-coupled external light source combined with solid waveguides — a unified optical design that scales across 200G, 400G, 800G and 1.6T product families.

Single-source 1:4 and 1:8 fan-out designs, including FR-4 compatible options, to shorten development cycles and simplify integration.

Unique in-module coupling, locking mechanisms and high/low-temperature compensation algorithms that establish the foundation for high yield, low-cost mass productions.


Simulation Analysis

End-to-end simulation and analysis: full optical-path optical simulation, thermal simulation, signal-integrity (SI) simulation and 3D structural analysis.

Engineering platform supports the productization of all-silicon-photonics solutions from 200G through 1.6T.

79 granted patents specifically for silicon-photonic solutions.


Processing and Manufacturing

Fully self-developed coupling automation equipment and tri-temperature test stands, enabling flexible monthly capacity allocation and high production yields.

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Production Process

Tanlink Optics Automated unmanned workshop


Step 1 Optical Engine Desigh & Production.

The optical engine is seen as the core optical component in a transceiver. The optical engine’s packaging and production are mainly achieved in automated production area through using COB (Chip on Board) technology, which comprises 3 key process: die bonding, wire bonding and coupling .



Step 2 Transceiver Assembly

All finished optical components need to be packaged in the transceiver housing.  This step is often finished in the manual production area.


.Step 3 Testing

In the test area of Tanlink's factory, each transceiver must be tested to make sure whether it is in line with the corresponding standard.  Additionally, each one must be determined whether it can resist extreme environments and circumstances. 




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Reliability Test


Temperature & Humidity Cycling Test  

Temperature & humidity cycling test is used for examining the ability of 

Tanlink's transceiver products to resist extremely low and extremely high temperatures and humidities.


Vibration Test

Vibration test is for determining whether our transceiver products can withstand

 various environment vibrations by simulating possible vibration environments encountered

 by the product in the process of transportation, installation and use. 




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Performance testing


Performance testing 

involves in a ser- ies of metrics including eye diagrams,  receiving sensitivity,extinction ratios, 

signal-to-noiseratio, bit error rate and spectrum test, etc.



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Compatebility Test

Before delivery, each transceiver will be tested in a simulated OEM environment to make sure our transceivers are fully compatible with OEM systems.


Test Equipment such as:

  • MGMT AIS800-64O  MGMT AIS800-64D

  • Mellanox SN2700

  • CISCO N9K-C93180YC

  • Cisco C8111 N9K-C93180YC-EX 

  • ARISTA 7050Q-16  DCS-7050CX3-32S-F DCS-7060DX4-32S-F

  • Nvidia QM9790  SN5600  CX7  QM8700 Quantum-X800 Q3400-RA 900-9X81E-00EX-STO MCX75310AAS-NEA  MCX715105AS-WEAT

  • DELL Z9432-ON (400G QDD)

  • Juniper QFX5220-32CD

  • Nokia 7250 IXR-e

  • Keysight N5227B Vector Network Analyzer

Quality Certification
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