Thulium-Doped Fiber Amplifier (TDFA)
2019年3月6日
A thulium-doped fiber amplifier (TDFA) is often used for light amplification in the Near Infra-Red (NIR). Figu …
Population inversion
2019年3月4日
Population inversion is an important concept for lasers optics, as it is essential for light amplification by …
Telecom network and datacom network
2018年8月3日
Telecom network is one form of network, primarily aiming for providing various data communication services of …
Guided modes in optical fiber
2018年6月27日
Understanding light propagation in an optical fiber by ray optics (see “optical fiber“) gives an i …
Total Internal Reflection (TIR)
2018年5月28日
Total Internal Reflection (TIR) is a phenomenon in optics, by which light experiences complete reflection at a …
Polarization-Maintaining Fiber (PM Fiber, PMF)
2018年5月15日
Introduction Theoretically speaking, an optical fiber with a circular core has no birefringence, and the polar …
Core pumping and cladding pumping
2018年5月15日
Fiber lasers/amplifiers are so far always optically pumped, and generally speaking, there are two types of opt …
Praseodymium-Doped Fiber Amplifier (PDFA)
2018年2月1日
Praseodymium-doped fiber amplifier (PDFA) is one type of rare-earth-doped fiber amplifiers, which operates in …
Optical fiber
2018年1月31日
Optical fibers are one of the most widely used form of optical waveguide. Unlike other form of waveguides, opt …
