How to choose optical attenuator

Optical attenuator is an optical fiber passive device is very important is an important part of optical communication equipment, and other optical fiber applications indispensable components, are widely used in long distance communication, regional network and FTTH, video transmission, optical fiber sensing and so on. However, in practical applications, how should we buy optical attenuators?

(1) appearance. As we all know, many types of optical attenuator, fixed optical attenuator, adjustable optical attenuator, yin and Yang optical attenuator, flange type optical attenuator, etc.. The optical attenuator, first look at his mortise is not dirty, it is in the production process are not checked, then look at the dust cap before and after is not before him is the same, the heel is the same, if not the same is the appearance of undesirable phenomena.

(2) price. When we buy optical attenuators, we all look at the price first. It is understood that many kinds of optical attenuator, optical attenuator, different kinds of price is not the same, so we choose the optical attenuator, with a compared to a price, so that we will know about the price, as they said, to buy things to goods more than three.

(3) performance. This is a relatively important link. The performance of optical attenuator, we have to look at it is not the standard parameters such as optical attenuator 1DB its normal parameter is between 0.5-1.5db if it is beyond the scope of the performance standards, will impact on the precision of optical attenuator attenuation but also on the light attenuation effect is used in the system.

To sum up, the above is in the purchase of optical attenuator when some of the skills and Raiders, for reference purposes only!