For spectral synthesis technology, increasing the number of synthesized laser sub-beams is one of the important ways to increase the synthesis power. Expanding the spectral range of fiber lasers will help increase the number of spectral synthesis laser sub-beams and increase the spectral synthesis power [44-45]. At present, the commonly used spectrum synthesis range is 1050～1072 nm. Further expanding the wavelength range of narrow linewidth fiber lasers to 1030 nm is of great significance to the spectrum synthesis technology. Therefore, many research institutions have focused on short wavelength (wavelength less than 1040 nm) narrow line Wide fiber lasers were studied. This paper mainly studies the 1030 nm fiber laser, and extends the wavelength range of the spectrally synthesized laser sub-beam to 1030 nm.
Fiber optic module can be divided into fiber optical receiver module, fiber optical transmission module, fiber optical transceiver module and fiber optical transponder module.
Scientists have developed a new type of laser that can generate a lot of energy in a short period of time, which has potential applications in ophthalmology and heart surgery or fine materials engineering. Professor Martin De Steck, director of the Institute of Photonics and Optical Sciences at the University of Sydney, said: The characteristic of this laser is that when the pulse duration is reduced to less than one trillionth of a second, the energy can also be "instantly "At its peak, this makes it an ideal candidate for processing materials that require short and powerful pulses.
Randomly distributed feedback fiber laser based on Raman gain, its output spectrum has been confirmed to be wide and stable under different environmental conditions, and the lasing spectrum position and bandwidth of the half-open cavity DFB-RFL is the same as the added point feedback device The spectra are highly correlated. If the spectral characteristics of the point mirror (such as FBG) change with the external environment, the lasing spectrum of the fiber random laser will also change. Based on this principle, fiber random lasers can be used to realize ultra-long-distance point-sensing functions.
Lithography is a technique for transferring a designed pattern directly or through an intermediate medium onto a flat surface, excluding areas of the surface that do not require a pattern.
High power ultrafast lasers are widely used because of their short pulse duration and peak power.Ultrafast lasers are used in material processing applications, medical fiber lasers, microscopy and other fields.
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