With the rapid development of high-speed optical communication technology, 1.6T/800G optical modules have become core components of data centers and communication networks due to their ultra-high bandwidth and low latency characteristics. To ensure the performance and reliability of such optical modules, a systematic test solution and high-precision instruments are required. Focusing on optical module aging testing, this paper proposes a comprehensive solution covering key test links.

800G and 1.6T optical modules are key components for Data Center Interconnection (DCI). Benefiting from the growing demand for high-speed data transmission, they face a significant demand gap, which is driving a surge in demand for module test equipment. To address this need, Dimension offers a comprehensive suite of module testing and aging systems. The 1.6T optical module high-speed test system rack integrates optical switches, Bit Error Rate Testers (BERT), optical power meters, optical attenuators, and Clock and Data Recovery Units (CDR), providing one-stop testing and aging services for optical module manufacturers.

Meanwhile, to adapt to the era of transformation and industry challenges, Dimension offers an automatic aging test solution for optical modules, providing manufacturers with a high-efficiency, low-cost, and high-reliability solution. The 1.6T/800G optical module automatic performance test system is a fully automatic intelligent system integrating automatic loading and unloading, automatic cleaning, and automatic testing into one. It serves as a comprehensive solution enabling the integration of optical module cleaning and aging testing.


Three-Temperature Testing

BERT Thermal

As the core equipment for optical module aging testing, the Three-Temperature BERT can precisely control high, low, and ambient temperature environments. It simultaneously monitors key indicators such as Bit Error Rate (BER) and optical power in real time, rapidly screens out early failure products, and verifies the module’s adaptability under extreme temperatures and long-term operational reliability.

SCPI Compatibility: Supports the SCPI command set, enabling direct access to customers' SCPI test systems via Ethernet/GPIB, and is compatible with 800G/1.6T production lines.
Programmability: Offers programmable control of port switching and 800G/1.6T parameter configuration through SCPI commands, seamlessly integrating into automated test workflows.
Compliance with International Standards: Adheres to IEEE 488.2 (SCPI Base Protocol), IEEE 802.3ck (800G Ethernet), IEEE 802.3df (1.6T Ethernet), OSFP MSA/QSFP-DD800 MSA (800G Optical Modules), andOSFP-XD MSA (1.6T Optical Modules).


Clock Recovery

CR600 60Gbaud Optical-Electrical Clock Recovery Unit (CRU)

The CR600 Optical-Electrical Clock Recovery Unit supports NRZ and PAM4 modulation formats, delivering optical-electrical clock signal recovery within the 60Gbaud range. The system integrates integrated single-mode and multi-mode optical-electrical conversion and clock recovery circuits, enabling application in both electrical and optical scenarios. It meets the requirements for high sensitivity and low intrinsic jitter, boasting excellent measurement accuracy.

SCPI Compatibility : Supports the SCPI command set and enables direct access to customers' SCPI automated test systems via Ethernet/GPIB interfaces. It can work synergistically with SCPI-compatible instruments such as 800G/1.6T Bit Error Rate Testers (BERT) and optical module test equipment without additional adaptation.
Programmability: Allows programmable configuration of 800G/1.6T-corresponding parameters via SCPI commands, including data rates (e.g., 112Gbaud/224Gbaud), locking thresholds, output levels, and recovered clock phases. It supports scripted control of automatic locking processes and reading of locking status, compatible with the automated test links of high-speed optical modules.
Compliance with International Standards: Adheres to IEEE 488.2 (SCPI Base Protocol),IEEE 802.3ck (800G Ethernet High-Speed Interface Standard), and IEEE 802.3df (1.6T Ethernet High-Speed Interface Standard), while complying with OIF CEI-112G/CEI-224G (High-Speed Electrical Interface Electrical Characteristics Standard).Optical Power Adjustment


Optical Power Adjustment

POA Multi-channel Programmable Optical Attenuator

The multi-channel attenuator features high reliability, high attenuation accuracy, and fast response speed, along with a wide attenuation range, meeting the test requirements of high-speed optical modules. Its rack-mount design facilitates rapid deployment by customers, and it supports customized channel counts per customer needs.

SCPI Compatibility: Supports the complete SCPI command set and complies with the IEEE 488.2 protocol specification. It can directly connect to customers' existing SCPI automated test systems via Ethernet, GPIB, or USB interfaces without the need for additional development of adaptation drivers. The device can be quickly integrated into 800G/1.6T optical module mass production test links, enabling synergistic operation with instruments such as Bit Error Rate Testers (BERT) and optical power meters.
Programmability: Precise programmable control of attenuation value and attenuation range adjustment is achievable via SCPI commands. It meets the dynamic loss simulation requirements of PAM4 signals and realizes real-time coordinated adjustment of attenuation parameters during the testing process.
Compliance with International Standards: Adheres to IEEE 488.2 (SCPI Basic Communication Protocol), IEEE 802.3ck (800G Ethernet Optical Link Standard), and IEEE 802.3df (1.6T Ethernet Optical Link Standard). It also complies with IEC 61300-3-34 (Test Standard for Insertion Loss and Return Loss of Optical Attenuators).

Optical Path Switching

OSW Matrix Optical Switch

The OSW Matrix Optical Switch offers a wide range of configuration options and customization solutions, meeting all customer requirements for optical path switching. For customers requiring optical input monitoring, it further incorporates an optical power monitoring solution, facilitating the construction of test systems.

SCPI Compatibility: Supports SCPI commands, enabling direct access to customers' SCPI automated platforms and compatibility with 800G/1.6T test scenarios.
Programmability: Enables high-speed optical path switching and status query via SCPI commands, supporting scripted control.
Compliance with International Standards: Adheres to IEEE 488.2 (SCPI), IEC 61755-3 (High-Speed Optical Connector Standard), and IEEE 802.3ck/df (800G/1.6T Optical Interface Standards).


Optical Power Monitoring

OPM Optical Power Meter

The optical power meter is a key detection device in optical module aging testing. It can precisely measure the module’s transmitted optical power and received optical power values, and conduct real-time monitoring of power drift during the aging process, providing core data support for evaluating the stability of the module’s optical performance and whether it meets shipping standards.

SCPI Compatibility: Supports SCPI commands, enabling direct integration into customers' SCPI test platforms and adaptation to high-speed optical signal measurement.
Programmability: Allows configuration of 800G/1.6T measurement parameters and data reading via SCPI commands, integrating into automated test workflows.
Compliance with International Standards: Adheres to IEEE 488.2 (SCPI), IEC 61280-2-500 (High-Speed Optical Power Measurement Standard), and IEEE 802.3ck/df (High-Speed Optical Interface Standards).