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

It is known that temperature plays a key part in the working process of optical transceiver. Whether it is too high or low will have an impact on the optical module. Then what are the impacts of too high or low temperature on optical transceiver module on earth? In this post, Gigalight will have an introduction to it.

What Is the Normal Temparature of Optical Transceiver?

Due to various types and brands of optical module, different optics temperature level corresponding to the different temperature range and varied temperature range defined by suppliers, whether the temperature of optical module is irregular can be judged accoerding to these factors. Before using 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 irregular temperature of optical transceiver.

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

Temperature Grade	Abbreviation	Temperature Range
Commercial temperature range	COM	0 ~ + 70 ℃
Extended temperature range	EXT	-20 ~ 85 ℃
Industrial temperature range	IND	-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 instable, 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 Appliction of Used Optical Transceiver

The temperature range of brand new optical module is usually at 0-70℃, and many used optics can not reach that. Therefore, under the conditions of too high and too low temperature, used optical module is unable to work normmally. At this time, the brand new optical module is suggested.

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 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 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.

Conclusion

Above is about the introduction to the impacts of too high or too low temperature on optical transceiver module. Hoping it will be beneficial to your future application of optical transceiver. More information about it at Gigalight.