The Impacts of High Temperature or Low Temperature to Optical Transceiver


It is believed that the failure of the optical transceiver is commonly seen in the application process. The reason why the problem appears to include many aspects, in which the temperature is also the key factor. Whether it is too high or too low will have an effect on the optical transceiver module.

The Introduction to Normal Temperature of Optical Transceiver?

Due to various types and brands of the optical module, different optics temperature level corresponding to the different temperature range and varied temperature range defined by suppliers, whether the temperature of the optical module is irregular can be judged according to these factors. Before using the optical transceiver, it is the best to check the brand or suppliers’ definition to the temperature range of optics, so as to reduce series of problems caused by the irregular temperature of the optical transceiver.

Besides, with respect to the temperature of optical transceiver, it consists of commercial grade, extended grade, industrial grade(shown as the below):

Temperature GradeAbbreviationTemperature Range
Commercial temperature rangeCOM0 ~ + 70 ℃
Extended temperature rangeEXT-20 ~ 85 ℃
Industrial temperature rangeIND-40 ~ 85 ℃

The Reasons Why the Temperature Are too High or too Low

1. The Poor Quality and Workmanship

If you use the optical transceivers with poor quality and workmanship, then the phenomenon of irregular temperature of the optical transceivers is more common. Because the function of such optical transceivers is unstable, heat dissipation is also relatively poor. In order to reduce the temperature anomaly and unnecessary discard, we advise to use the optical transceivers with better function, quality and workmanship.

2. Poor Application Conditions

The working conditions of optics is in data center, computer room or on the switcher. If it is applied in the other conditions, the change of environment temperature will definitely change that of optical transceiver module. Furtherly, the optical power and optical sensitivity of optics will be affected. If the application conditions of optical transceiver is relatively poor, the optical transceiver module with industrial temperature and extended temperature will be recommended.

3. The Application of Existing Optical Transceivers

The temperature range of a brand new optical module is usually in the range of 0 to 70℃. Existing transceivers may not perform well at this range. Therefore, under the conditions of too high and too low temperature, most of the existing optical modules would stope working. The brand new optical module is suggested to use in such situations.

What Are the Impacts of Too High or Low Temperature on Optical transceivers

1. The Impact of Too High Temperature on Optics:

If the working temperature of the optical module is too high, its optical power will become larger. After that, the error will happen in the process of receiving signal and even optical module is burnt out, causing that the optical module can not work normally. At this time, the DDM function should be increased, or a temperature control system should be used to monitor and compensate it in real time, so as to ensure optical module’s extinction ratio and optical power are stable and the normal working of the optical communication system.

2. The Impact of Low Temperature on Optics

Generally speaking, as long as the optical transceiver is not exposed to the temperature below 0℃ and the temperature is not too low, it is not suggested to use optical transceiver under the conditions of too low temperature, which will lead to the instability of optical module.

Generally speaking, the too high or too low temperature will affect the normal working of the optical module. Therefore, when the optical transceiver is utilized, the working conditions of optics would better be paid more attention. Hoping this article will be helpful to your applications of optics.

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