As a key component in optical communication system, optical transceiver is easily affected by temperature changes during actual operation, which can lead to fluctuations in optical power, wavelength drift, and even failure. Therefore, precise temperature control becomes an important factor in ensuring the stable operation of optical transceiver. EXSENSE gold termination NTC chip, utilizing its inherent temperature sensitivity, can monitor the internal junction temperature of optical transceiver in real time, ensuring that it always operates within a suitable temperature range and maintaining stable and reliable performance.
The fundamental reason for installing EXSENSE gold termination bare chip in optical transceiver is the temperature sensitivity of its core component—the laser diode. Because the output wavelength of the laser diode is inversely proportional to the junction temperature, even slight abnormal temperature fluctuations can cause wavelength drift, leading to crosstalk between interchannels and seriously affecting communication quality. At the same time, the junction temperature of optical transceiver can reach 85℃. As data center evolves toward 800G and higher speeds, the concurrent increase in power consumption and heat density further intensifies thermal management pressure. Compared with other NTC products, the reason why EXSENSE gold termination NTC chip has become the core component of optical transceiver temperature control solution is, on the one hand, its process that supports bonding on the top surface and soldering on the bottom, saving the limited installation space inside optical transceiver. On the other hand, its bare-chip structure with gold terminations allow closer proximity to the heat source, enabling rapid temperature feedback. In addition, EXSENSE gold termination NTC chip also contributes to temperature monitoring of optical transceiver with the following outstanding electrical characteristics:
1. High accuracy for Precise Temperature Control
The gold termination bare chip with ±1% accuracy can stably and precisely capture the subtle changes in internal temperatures of optical transceiver, providing critical data support for the temperature control process of optical transceiver, effectively improving optical signal modulation efficiency, and extending the lifetime of optical transceiver.
2. Small Size for Compact Space Adaptation
The dimension of EXSENSE optical transceiver NTC can reach 0.21mm × 0.21mm, meeting the stringent spatial layout requirements of TOSA. The small-sized bare chip not only saves valuable space inside optical transceiver but also strongly supports the miniaturization and high-density integration of optical transceiver.
3. Customization to Meet Diverse Needs
EXSENSE can provide customized services for parameters, dimensions, and more according to the design requirements and application scenarios of different optical transceiver, enabling EXSENSE gold termination NTC chip to better collaborate with other components of optical transceiver, enhancing the overall reliability of optical transceiver, and providing solid support for the application of optical transceiver in various fields.
