Who knows the basic equipment composition and function of optical communication?

Optical communication is the communication using light waves as the carrier. With the advent of the information age, people's demand for optical communication bandwidth is increasing. There are two ways to increase the bandwidth of the optical path: one is to increase the single-channel transmission rate of the optical fiber; the other is to increase the number of wavelengths transmitted in a single optical fiber, that is, wavelength division. Multiplexing technology (WDM).

At present, Broadband Metropolitan Area Network (BMAN) is becoming the focus of information construction. The huge bandwidth of DWDM (Dense Wavelength Division Multiplexing) and the transparency of data transmission are undoubtedly the technology in the field of optical fiber applications. However, MAN has the characteristics of short transmission distance, flexible topology, and multiple access types. If DWDM, which is mainly used for long-distance transmission, is copied, the cost will inevitably be too high; at the same time, early DWDM is difficult to adapt to the flexibility and diversity of MAN.

Faced with the broadband demand of this low-cost metropolitan area, CWDM (Coarse Wavelength Division Multiplexing) technology emerged as the times require, and soon became a practical device. The optical equipment currently used mainly includes: ① Optical devices include optical couplers, optical multiplexers, optical filters, optical fiber connectors and attenuators, optical detectors, optical amplifiers, optical modulators and switches; ② Optical transmitters; ③ optical receiver.

Related news

Data Center Solutions II

The modular data center is mainly composed of cabinets, enclosed channels, power supply and distribution systems, refrigeration systems, intelligent monitoring systems, comprehensive wiring systems, and fire protection systems.

IDC Data Center Solutions

With the development of the communication industry, the construction of modular data centers has become a common trend. With years of experience, Changcheng provides innovative modular data center optical series products, including optical distribution frames, modules, pre terminated jumpers, and other products, which have high density and scalability, and are suitable for the smooth upgrading of future large data centers of 40G/100G/400G.

FTTX Harsh Environment Wiring Solutions

FTTx special outdoor environment, refers toa number of special environmental fiber opticommunication cablingtion, military, ship orenvironment, such as stage broadcasting, tlevision and film video, live sports events, aviacoal mine oil wells communication connecton, military rapid co-mmunication cabling, temporary emergencys kind of fiber optic communication wiring, gererally require wiringcommunication repair special scenarios. Thcommunication fiber optic wire, need to hae waterproof, sunscreen tensile, compressivewear-resistantcorrosion-resistant, wire soft and easy to ptt away and so on. CCOFC fordifferent use of the environment, the introdiction of a series of corresponding wiring prodicts, such as fibernd outdoor generalon-metallic armored fiber optic cable, indoor aoptic cable TPU armored fiber optic cable, nfield optical cable, etc, Connectors havemetal aviation connector series, TBE field wall conlector series, 3k93Coptoelectronic hybrid insertion and extractin self-locking series, HXB with lens beam exponsion series and aseries of professional high-end connectors。

CCOFC | Changcheng Technology FTTH Fiber to Home Solution

With the rapid development of China's network, FTTH fiber to the home is an inevitable trend, and only fiber can achieve a bandwidth of over 100Mbps to the home. Therefore, FTTH has become an inevitable choice and development direction. In recent years, with the continuous development of fiber to home FTTH technology, CCOFC has completed thousands of FTTH renovation and new FTTH projects, becoming a high-quality product provider and technical support provider for communication operators.

What is the optical module for

Optical modules are optoelectronic devices that perform photoelectric and electro-optical conversion. The optical module is also called a fiber optic transceiver, which is mainly used for photoelectric conversion of signals. At the transmitting end, the electrical signal of the device is converted into an optical signal, and at the receiving end, the optical signal is restored to an electrical signal. The optical module is composed of a laser at the transmitting end, a detector at the receiving end, and electronic devices for data encoding/decoding.

What is the principle of optical communication?

The principle of optical fiber communication is: at the sending end, the transmitted information (such as voice) must first be converted into an electrical signal, and then modulated onto the laser beam emitted by the laser, so that the intensity of the light changes with the amplitude (frequency) of the electrical signal. And send it out through the optical fiber; at the receiving end, the detector converts the optical signal into an electrical signal after receiving it, and restores the original information after demodulation.