The direction problem of IR technology of laser pointer

By RF technology, the direction problem of IR technology of laser pointer is solved.
Not only inherent loss factor, but also consider the impact of the splitting ratio. Between different fiber optic coupler, the insertion loss difference does not reflect the merits of the quality of device fabrication. 1 * N single-mode standard optical splitter excess loss in the table below: split ratio defined as the ratio of the output power of the optical splitter output ports in the system application, the determination of the splitting ratio is based on the actual system optical node the number of required optical power to determine the appropriate split ratio , optical splitter, the splitting ratio to and transmission of light wavelengths, such as an optical splitter in the transmission of the 1.31-micron light two outputs splitting ratio of 50:50. laser pointer will save a lot of trouble for teachers, lecturers and other users.
Transmission 1.5μm light into a 70:30 . Customized optical splitter must specify the wavelength. Isolation refers to the isolation of the optical splitter of a light path of the optical signal in the other optical path. In the above indicators, the degree of isolation is even more important for the significance of the optical splitter, in the actual system applications often require the isolation of 40dB above the device, otherwise it will affect the overall system performance. Prices of laser pointer having USB flash disks are relatively higher.The battery of laser pointer is the 16340 specification
In addition, the stability of the optical splitter is also an important indicator, the so-called stability refers to the outside temperature changes, the change of status of other devices, optical splitter splitting ratio and other performance indicators should remain basically unchanged. In fact, the stability of the optical splitter depends entirely on the manufacturer's level of technology, products from different manufacturers, the quality gap considerably. In practical applications, I did encounter a lot of the poor quality of the optical splitter, not only the performance to deteriorate quickly, and the damage rate is very high for an important device of the fiber optic trunk must be noted at the time of purchase, you can not look at prices, low technological level of the optical splitter price is certainly low. laser pointer can run smoothly in systems such as WIN98/2000/ME/XP and so on.
Optical attenuator is a very important fiber optic passive components, is an indispensable device in optical fiber CATV. So far the market has formed a fixed, step adjustable, continuous adjustable and intelligent optical attenuator four series.