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How High-accuracy NTC Chip Ensures Stable Operation of Optical Transceiver
2025/12/24 03:12:51


In optical communication system, optical transceiver is responsible for the crucial task of converting optical and electrical signals. In recent years, as transmission rates move toward higher speeds, their power consumption and junction temperature have increased significantly. To address this technical challenge, EXSENSE gold termination NTC chip, acting as 'expert' in temperature monitoring, work in collaboration with the internal TEC and other components of the optical transceiver to ensure smooth operation within a suitable temperature range.

To achieve high-accuracy temperature measurement in optical transceiver, the NTC chip connects to the TEC and laser pin terminal through gold wire bonding process and silver paste soldering process, allowing for real-time monitoring of the laser's operating temperature. During operation, heat generated by the laser through the electro-optical conversion process, current flow, etc. are accurately captured by the EXSENSE bare chip and then converted into a voltage signal. This signal is compared with a preset voltage value, and the TEC adjusts cooling or heating based on the error, keeping the laser temperature within an appropriate range. With the assistance of the NTC chip, the optical transceiver can effectively avoid signal distortion, wavelength drift, and other issues caused by abnormal temperatures, ensuring stable output wavelengths from the internal laser.

What outstanding features allow the EXSENSE gold-termination NTC chip to excel in optical transceiver temperature control and meet the strict performance requirements of optical transceiver to internal components?

1. High Accuracy: EXSENSE gold-termination bare chip achieves an accuracy of ±1%, providing optical transceiver with more precise temperature data, assisting the TEC in better temperature regulation, and improving data transmission quality.

2. Small Dimension: To meet the trend of optical transceiver toward smaller form factors and higher density, EXSENSE has mass-produced 0.21mm × 0.21mm small-size gold-termination NTC chip for optical transceiver, saving limited internal space. The smaller NTC also responds faster, enhancing the sensitivity of real-time junction temperature monitoring within the transceiver.

3. High Stability: The EXSENSE gold-termination NTC chip maintains excellent stability even under the complex working conditions of optical transceiver, continuously providing temperature monitoring data. This feature helps prevent inaccurate temperature control, ensuring the long-term reliability of the optical transceiver.

As the core of temperature sensing, the EXSENSE gold-termination bare chip plays a crucial role in the efficient operation of optical transceiver. EXSENSE optical transceiver gold-termination NTC chip acts as the 'temperature guardian' of optical transceiver laser, it captures real-time junction temperature, in combination with the TEC, makes timely adjustments to prevent power fluctuations, wavelength drift, or component aging due to overheating or overcooling. This not only optimizes energy efficiency but also extends the service life, laying a solid foundation for high-speed data transmission.

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