• Fiber cut-off wavelength
    Fiber cut-off wavelength
    The fiber cut-off wavelength is to ensure that only one mode exists in the fiber. One of the main transmission characteristics of single-mode fiber is the cut-off wavelength, which is of great significance for fiber optic cable manufacturers and users of fiber optic cables to design and use fiber optic transmission systems.
    2022-04-24
  • The principle and application of laser sensor
    The principle and application of laser sensor
    Laser sensors are sensors that use laser technology to measure. It consists of a laser, a laser detector and a measuring circuit. Laser sensor is a new type of measuring instrument. Its advantages are that it can realize non-contact long-distance measurement, fast speed, high precision, large range, strong anti-light and electrical interference ability, etc.
    2022-04-18
  • Semiconductor Optical Amplifiers (SOA)
    Semiconductor Optical Amplifiers (SOA)
    A semiconductor optical amplifier (SOA), also known as a laser amplifier, is an active medium of a semiconductor laser. In other words, an SOA is a laser diode without or with very low optical feedback. An electric current is externally applied to the laser device that excites electrons in the active region. When photons travel through the active region it can cause these elect...
    2022-04-11
  • FBG optical sensor
    FBG optical sensor
    FBG optical sensor, fiber Bragg grating sensor, is a kind of optical fiber sensor with the highest frequency and widest range. This sensor can change the wavelength of the reflected light wave according to the change of ambient temperature and/or strain. Fiber Bragg gratings use holographic interferometry or phase masking to expose a small section of light-sensitive fiber to a ...
    2022-04-06
  • What is the semiconductor laser?
    What is the semiconductor laser?
    Since the invention of the world‘s first semiconductor laser in 1962, the semiconductor laser has undergone tremendous changes, greatly promoting the development of other science and technology, and is considered to be one of the greatest human inventions in the twentieth century. In the past ten years, semiconductor lasers have developed more rapidly and have become the faste...
    2022-03-30
  • Application of fiber laser in the field of medical equipment welding
    Application of fiber laser in the field of medical equipment welding
    Compared with traditional technologies, the advantages of fiber lasers in beam quality, depth of focus and dynamic parameter adjustment performance have been fully recognized. Coupled with the advantages of electro-optical conversion efficiency, process versatility, reliability and cost, the application level of fiber lasers in medical device manufacturing (especially in fine c...
    2022-03-22
  • Laser Radar
    Laser Radar
    Lidar (Laser Radar) is a radar system that emits a laser beam to detect the position and speed of a target. Its working principle is to send a detection signal (laser beam) to the target, and then compare the received signal (target echo) reflected from the target with the transmitted signal, and after proper processing, you can obtain relevant information about the target, suc...
    2021-09-26
  • OCT imaging technology
    OCT imaging technology
    Optical Coherence Tomography (OCT) is a low-loss, high-resolution, non-invasive medical and imaging technology developed in the early 1990s. Its principle is similar to ultrasound imaging, the difference is that it uses light instead of sound.
    2021-09-13
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