What Are The Advantages Of Optic Fiber Lasers?
Fiber lasers have a waveguide-type structure, which can produce a higher power density in the fiber core. The technology of silicon optical fiber on which it is based is now very mature, so it can produce high-precision, low-loss optical fiber. If the choice of optical fiber makes the pump and signal wavelengths operate in single mode, the coincidence between the pump and signal light fields is very good. Due to the geometric characteristics of the optical fiber, this structure has a high area-to-volume ratio, so its heat dissipation effect is very good.
These characteristics determine that the silicon-based fiber laser can work in a continuous output state at a lower power pump, while other bulk glass dielectric lasers can only work in the pulse state, often requiring a relatively high pump Pump energy to obtain laser output.
The cylindrical structure of the optical fiber also has the following two advantages, which is convenient for application in optical communication and medicine.
(1) Because the fiber laser is essentially a fiber structure, it can be connected to the current fiber transmission system with high efficiency.
(2) Because the optical fiber structure is small and easy to operate, it is ideal in certain medical applications, such as deep into the human stomach.
An important property of rare earth-doped ion lasers is that their output spectral characteristics are significantly affected by the molecular environment around the doped ions. This property can be used in two ways. One is that the wavelength can be adjusted by changing the composition of the matrix glass; the other is that when the matrix is glass, a wider fluorescence can be observed.
Fiber lasers can provide many output wavelengths, some of which are very important for optical communications. The output light wavelength is determined by the rare earth element ions doped into the fiber core.
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