As the core component of optical transceiver, the laser's output wavelength is extremely sensitive to temperature changes. Abnormal temperature fluctuations directly affect communication quality, leading to degraded laser performance or even damage. In the face of this challenge, optical transceiver designs typically incorporate EXSENSE gold termination NTC chip inside the laser, working in coordination with TEC for real-time temperature monitoring.

During operation, heat generated by the external environment and the power consumption of internal electronic components can cause temperature deviations. At this time, the EXSENSE gold termination NTC converts the obtained temperature signals into electrical signals, transmitting them to the optical transceiver’s control circuit. The control circuit then takes appropriate protective measures based on the received temperature signals, such as heating or cooling through the TEC, to ensure the optical transceiver operates within the specified temperature range, guaranteeing stable functionality. The reason for choosing gold termination NTC chip for optical transceiver temperature monitoring lies in it:

1. High accuracy: EXSENSE gold termination chips offer ±1% accuracy for both resistance value and Beta, ensuring precise monitoring of the laser junction temperature and providing a strong basis for subsequent temperature control. This prevents performance fluctuations in the optical transceiver caused by temperature measurement errors, effectively improving optical signal transmission quality, stability, and the reliability of optical transceiver in complex operating environments.

2. Small dimension: As optical transceiver moves toward more compact encapsulating, EXSENSE Electronics has developed and mass-produced 0.21 mm × 0.21 mm gold termination NTC, meeting the tight installation space requirements of optical transceiver and allowing more possibilities for integrating other components.

3. Rapid Response: Gold electrode NTC chip is highly sensitive to temperature changes and can quickly monitor the real-time junction temperature of the laser, playing an essential role in preventing overheating damage and maintaining stable output wavelengths.

EXSENSE gold termination NTC chip is key to laser temperature monitoring; without it, temperature control measurements would be impossible. From the perspective of performance stability, the gold termination NTC chip ensures the laser operates at a constant temperature, leading to better modulation performance and lower error rates, which is particularly important for scenarios with strict requirements for communication reliability, such as high-speed data center interconnection and 5G networks. From the perspective of long-term reliability, maintaining an appropriate junction temperature significantly extends the service life of optical transceiver. With the support of EXSENSE gold termination NTC chip, the laser temperature remains within a safe range, preventing accelerated aging due to high temperatures.