The optical module is how to use and work?
2019-09-11
If we want to know how the optical module is used and working, first we need to understand how the optical module works.
The optical module is composed of a transmission device that converts an electrical signal with a signal into an optical signal and then transmits the optical signal into the optical fiber.The optical module mainly includes two parts: transmitting and receiving.Although the optical module has different speed, package, and transmission distance, the internal components of the optical module are basically the same.The optical module is mainly composed of a light emitting component, an aurora driver, a light receiving component, a limiting amplifier and a controller.
The transmitting part is: the electrical signal is driven by the internal driving chip to drive a semiconductor laser (LD) or a light emitting diode (LED) to emit a modulated light signal of a corresponding rate, and an optical power automatic control circuit is internally provided to make the output optical signal power keep it steady.The receiving part is: the optical signal input module is converted into an electrical signal by the photodetecting diode. After the preamplifier, the electrical signal of the corresponding code rate is output.The main function of the optical transceiver integrated module is to realize photoelectric/electrical optical conversion, including optical power control, modulation transmission, and signal detection.Among them, the driver chip and the limiting amplifier generally support rates of 155 mb/s to 2.67 Gb/s. The difference in the rate of optical modules is mainly due to the difference in front-end optical components. For example, the BOM cost in high-speed SFP optical modules is mostly concentrated on optical components, accounting for almost 90% of the total.
Each component has its own working principle. For details, please contact Fiberland Ltd. We will provide you with a more detailed working principle of SFP optical modules.
After introducing the principle, we already know how the optical module works. Next, our fiberland Co., Ltd. will introduce you to how to use the optical module.
First of all, in the installation method.
we must pay attention to anti-static measures. Wear gloves as much as possible. Do not directly touch the light module directly with your hands. When inserting the optical module, we will hear a “beep” sound, indicating that the optical module is plugged into the proper position. If not, we need to further confirm that the optical module is working.
Second, we must pay attention to the problem of optical power of the optical module.
We need to choose the right module to prevent the problem of optical power overload of the optical module.Because ESD is an inevitable phenomenon in nature.If we need to prevent the emergence of ESD problems, we must start from the two problems of preventing charge accumulation and rapid discharge, and further prevent the optical power overload of the optical module from causing burnout.
Finally, in the process of using the optical module, we need to pay attention to the problem of the module single multimode.Multimode optical modules cannot be transmitted on single-mode fibers because the attenuation of multimode fibers is too large, and the transmission distance is mainly affected.
In summary, the main principle of the operation of the optical module is a relay that transmits and receives electrical signals, and is a tool for transmitting electrical signals.
The optical modules mentioned above are all sold by Fiberland Ltd. We can provide different types and different models of optical modules. And low loss, cost-effective. We also offer OEM customized services to meet your different needs.