800G / 1.6T BERT and Temperature Testing

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800G / 1.6T BERT and Temperature Testing

Single- and multi-port testing with BERT, TEC temperature control and integrated optical instrumentation.

Test architecture

The GM OPTICS reference connects a BERT, TEC, optical routing box, optical module platform and optical switch for QSFP-DD / OSFP 800G / 1.6T modules. The diagram includes reference transmitters, DUTs, OPM × 8 and VOA × 8 paths. Single- and dual-channel configurations are shown, with additional ports available by customization.

Key specifications from the source

  • Up to 212.5 Gbps / 106.25 Gbaud, covering 1.6T / 800G / 400G module validation.
  • Native dual-port parallel testing.
  • Temperature range: −45 to +130 °C; stability: ±0.1 °C; accuracy: ±0.5 °C.
  • Integrated optical ports without additional optoelectronic conversion accessories.
  • 14-tap transmitter pre-emphasis; minimum differential receiver sensitivity < 100 mV.
  • KP4 FEC support for error-margin and correction-capability evaluation.
  • MCB fixtures for OSFP / OSFP-RHS / QSFP-DD packages.

Related solutions and instruments

BERT and temperature testing · Return-loss testing · Supporting instruments

Reference material

View original slide (full size)

View / download test solutions PDF (3 pages)

Source: GM OPTICS, “GM Solution for Source”, September 2026. Technical diagrams and specifications are retained from the customer-supplied reference. This is not a claim that the instruments are designed or manufactured by Trendsemi. Configuration and supply scope require confirmation.