Fiber Optic Power is indispensable for any optical fiber transmission system of manufacture, installation, operation and maintenance. In the field of optical fiber, any engineering, laboratory, production workshop or telephone maintenance facilities are unable to work without no optical power meter. For example, optical power meter can be used to output power of measure laser light source and LED light source. Used to identify fiber optic link loss estimation, One of the most important is, it is the key instrument to test optical components performance index(optical fiber, connectors, after the son, and attenuator etc.) performance index of the key instrument.

In view of the user’s specific application, should pay close attention to the following pointsif someone want to choose suitable Fiber Optic Power meter:
1. selection of an optimal probe type and interface type
2. the evaluation accuracy in calibration and manufacturing calibration procedures, and the fiber and the joint requirements range phase matching.
3. make sure the type and your range of measurement and display resolution consistent.
4. have direct insertion loss measurement dB function.

The correct detector for loss and power measurements on fiber systems will generally be as follows:

Choose an InGaAs (Indium Gallium Arsenide) detector for:
*General & Precision measurements over 1000 – 1650 nm (other InGaAs detectors) up to up to the maximum meter range.
*CWDM or DWDM bands up to the maximum meter range.

Choose a Ge (Germanium) detector for:
*Modest accuracy over 850 -1550 nm up to the maximum meter range.
Don’t choose a Ge (Germanium) detector for:
*Work on WDM systems above 1550 nm, despite attempts by some competitors to say otherwise. If in any doubt, just look at the graph below. Calibration constants vary by about 2 dB between 1550 and 1625 nm, and are also very temperature sensitive.
*1550 nm systems if cold temperatures are expected.
*Precision or laboratory grade accuracy. Ge is inherently non-linear by about 0.04 dB, has some temperature sensitivity, and responsivity is more variable across the detector surface.

Choose an Si (Silicon) detector for:
*Precision measurement at 600 – 1000 nm up to the maximum meter range.

Choose an H Series (Attenuated Indium Gallium Arsenide) detector for:
*High power Measurements. These detectors are more expensive and have slightly lower accuracy than normal InGaAs detectors, so only specify them if actually required. Kingfisher power meters can be used up to the maximum display range.
*The peak signal power must be within the meter range.
*High power meters have less Autotest sensitivity, which is a consideration for loss testing.
*The KI2600-H5 offers the best balance for most high power users, with up to +24 dBm range & reasonable Autotest senstivity
*The KI2600XL-H3B offers the highest power level of +33 dBm

Optical power meter is the most important selection criteria is light probe type and the expected working range phase matching, technical personnel must write down separate reference value and measured value, and then meter Calculate the difference. So relative loss measuring for users when using with the dB function, thus increase productivity, reduce artificial calculation error.