The system uses a narrow linewidth laser with a 1550nm working wavelength and divides the light source into two channels through a 3dB coupler. One of the optical signals is modulated by the electro-optic modulator (eom1) to pulse light, amplified by EDFA, filtered by grating, and then entered the sensing fiber. Another optical signal of the coupler is modulated by an electro-optic modulator (eom2) to produce a frequency shift of about 11 GHz. The stimulated Brillouin scattering has the most sub

Half-wave voltage is an important parameter to measure the electrical characteristics of devices. The lower the half-wave voltage, the better the electrical parts of devices. In this paper, the half-wave voltage of the integrated device is measured using the principle of Mach Zehnder intensity modulation. The test schematic diagram is shown in Figure 5. Load sawtooth wave electric signal with saw period of T and peak value of VPP on one arm of Mach Zehnder intensity modulation system. Use a do

A photoelectric detection module is a basic unit in an optical fiber sensing system. The photodetectors independently developed and produced by conquering photoelectric include: pin photodetectors, pin photodetectors with amplification, high sensitivity Avalanche Photodetectors, balance photodetectors, multi-channel photodetectors, and other products. The detection bandwidth is from DC to GHz, which can fully meet different optical fiber sensing systems Demand.

China's manufacturing is moving towards the world, the market competition is intensified, and the requirements of product performance and manufacturing process are higher and higher. Compared with traditional processing technology, laser technology is superior! The laser technology focuses on the application of laser welding, laser cutting, laser weakening, laser marking, laser resistance adjustment, and laser remanufacturing in the field of industrial manufacturing. In August, the 11th optoelec

The backscattered light signal is feeble in the distributed optical fiber sensing system, so it is necessary to amplify the light pulse before the sensor. The erbium-doped fiber amplifier is the most effective technical means to solve this problem. Whether in the field of communication or optical fiber sensing, optical fiber amplifier technology has been mature, and there are many products. The optical fiber amplifier module independently developed by conquering optoelectronics has the chara

At the beginning of the Spring Festival, the 2019 Spring Festival reunion of the Beijing Optical Society was successfully held in China Science and Technology Hall's report hall on January 26. The gathering was attended by academician Jin Guofan and his wife, academician Zhou Liwei,

The Spring Festival is coming. First of all, I would like to express my heartfelt thanks to you for your support to our company in the past year! Here, we wish you all the best in the new year:

Recently, ultra-low half-wave voltage phase modulator which users have recognized. The modulator integrates a laser light source, ultra-low half-wave voltage phase modulator, and microwave amplifier (EDFA integration optional), which significantly facilitates customers' use. It has the advantages of low insertion loss, low cost, high stability, high integration, and customization. It is a high-speed electro-optic modulation instrument with high-cost performance. The specific indicators and model

Due to the innovation of our company and the continuous research and development of high-tech products, according to the provisions of the “High-tech Enterprise Certification Management Measures” and the “High-tech Fields Supported by the State” jointly promulgated by the Ministry of Science and Technology, the Ministry of Finance and the State Administration of Taxation, Beijing Kangguan Century Optoelectronics Technology Co., Ltd. obtained the high-tech enterprise certificate jointly issued by