• Avalanche Photodiode
    Avalanche Photodiode
    Photodiode with internal signal amplification by avalanche process.
    2022-10-18
  • Pulse laser parameters
    Pulse laser parameters
    In recent years, with the continuous expansion of pulsed laser applications, the high output power and high single pulse energy of pulsed lasers is no longer a purely pursued goal. In contrast, the more important parameters are: pulse width, pulse shape and repetition frequency. Among them, the pulse width is particularly important. Almost just by looking at this parameter, you...
    2022-10-09
  •  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...
    2022-09-26
  •  The principle characteristics of fiber laser
    The principle characteristics of fiber laser
    The working medium used in the fiber laser has the form of fiber, and the fiber laser characteristics are affected by the fiber conducting properties.
    2022-09-20
  •  Optical fiber related knowledge
    Optical fiber related knowledge
    The structure of the optical fiber:
    2022-09-08
  •  High Power Fiber Lasers and Amplifiers
    High Power Fiber Lasers and Amplifiers
    The output power of the first fiber laser was only a few milliwatts. Recently, fiber lasers have developed rapidly, and high-power fiber amplifiers have been obtained. In particular, the output power of the amplifiers can reach tens of hundreds of watts, even in some single-mode fibers. on kilowatts. This is due to the large surface area to volume ratio of the fiber (to avoid e...
    2022-08-29
  •  Polarization-maintaining fiber
    Polarization-maintaining fiber
    In various optical fiber interference instruments, in order to obtain the maximum coherence efficiency, the polarization state of the optical fiber propagating light is required to be very stable. The transmission of light in a single-mode fiber is actually two orthogonal polarization fundamental modes. When the optical fiber is an ideal optical fiber, the transmitted fundament...
    2022-08-22
  • Application of Tunable Laser in Optical Communication
    Application of Tunable Laser in Optical Communication
    The network applications of tunable lasers can be divided into two parts: static applications and dynamic applications.
    2022-08-15
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