What Is a Default APR?

APR, a polysemous entry, 1, APR (Augmented Pay Reality) is augmented payment reality technology. It is part of Alipay's KungFu technology. 2. The purpose of APR (Apache portable Run-time libraries) is the same as its name. It mainly provides a low-level support interface library for upper-layer applications that can be used across multiple operating system platforms. 3. Annual interest rate. 4. Quality review. 5. Annual percentage rate in credit cards. 6. Abbreviation of April in English. 7. Auto Place and Route in Electronic Design Automation. 8. Automatic Power Reduction

apr

APR, polynomial entry, 1, APR (Augmented Pay Reality) is enhanced

APR moves down the processing of platform details. for

APR is

APR: Annual Products Review. Annual product review, that is, annual product quality review, annual quality review.

APR: Annual percentage rate. This is a term used in credit cards to refer to the interest paid when you owe money. Usually after the repayment date, the calculation of interest on arrears begins. Suppose an APR 18% credit card has a monthly interest rate of 18% / 12 = 1.5%. If you owe $ 1000, one month after the repayment date, you need to pay interest of $ 1000 * 1.5% = $ 15.

APR: Automatic Power Reduction.

APR technology is to solve the problem of light surge in erbium-doped fiber amplifier (EDFA). When EDFA has no input light, it will automatically reduce the pump power to suppress the occurrence of light surge.

We know that when the optical path is normal in EDFA, the plutonium ions excited by the pump light are carried away by the signal light, thereby completing the amplification of the signal light. If the input light is cut off, since the metastable plutonium ions are still concentrating, once the signal light input is restored, energy jumps will occur, resulting in a light surge.

The pump light is like a booster. When the signal light is not needed to be amplified, we do not need to give the booster energy. Therefore, at this time, the energy of the pump light can be reduced, not only saving energy, but also suppressing light surges. This process is done automatically by the control circuit.