With the rapid development of information technology, optical transceiver is the key component of optical communication system, and its performance stability and reliability are very important to the operation of the system. Temperature is one of the key factors affecting the performance of optical transceiver, so how to effectively monitor and control the temperature of optical module has become a key research direction. Due to its high sensitivity to temperature changes, NTC chip becomes the ideal choice for temperature monitoring of optical transceiver.

The ambient temperature and the internal temperature of the optical transceiver will affect the optical power and stability of the optical module, which in turn will affect its transmission performance. The NTC chip monitors the temperature inside the optical transceiver in real time and provides accurate temperature data to ensure that the optical transceiver works within the appropriate temperature range. Bare chip is typically mounted in the laser of an optical emitter and electrically connected to its pin with bonding process. The specific applications of NTC chip in optical emitter are as follows:

First, temperature monitoring: NTC is used to monitor the ambient temperature of the laser, cooperate with other components to balance the working temperature of the laser, and assist it to output a stable wavelength of laser;

Second, temperature compensation: The output power and wavelength of the laser will change with the temperature, and the bare chip can provide real-time temperature feedback according to the change of its own resistance value to help the laser compensate for temperature and maintain the stability of the output signal.

Due to the long-term operation of optical transceiver in complex environments, EXSENSE Electronics Technology Co., Ltd. recommends the use of DT series gold electrode high-accuracy NTC chip independently developed and produced by our company, which has the following advantages compared with traditional NTC chip:

First, high accuracy, which can help the laser to accurately measure the temperature and improve the accuracy of the temperature monitoring of the optical transceiver;

Second, small size , limited by the internal space of the laser, the small size bare chip of EXSENSE Electronics is more conducive to saving the assembly position and providing more installation space for other components;

Third, fast response, the gold electrode NTC chip has excellent sensitivity, which can respond in time for real-time temperature measurement when the laser is working, so as to enhance its adaptability in harsh environments.