Pulsed Erbium-doped Fiber Amplifier Manufacturers

An optical fiber sensor is a sensor that converts the state of the measured object into a measurable light signal. The working principle of the optical fiber sensor is to send the incident light beam from the light source into the modulator through the optical fiber. The interaction between the modulator and the external measured parameters determines the optical properties of the light, such as the intensity, wavelength, frequency, phase, polarization state, etc. It changes and becomes a modulated optical signal, which is then sent to the optoelectronic device through the optical fiber and passed through the demodulator to obtain the measured parameters. During the whole process, the light beam is introduced through the optical fiber, passes through the modulator, and then emitted. The role of the optical fiber is first to transmit the light beam, and secondly to act as an optical modulator.

Structural design optimization: The three basic principles of semiconductor lasers are: electrical injection and confinement, electrical-optical conversion, optical confinement and output, which correspond to electrical injection design, quantum well design, and optical field design of the waveguide structure, respectively. Optimizing the structure of quantum wells, quantum wires, quantum dots, and photonic crystals has promoted the continuous improvement of laser technology, making the output power and electro-optical conversion efficiency of lasers higher and higher, beam quality getting better and better, and higher reliability .

Pump lasers are the "energy supply core" of laser systems. They inject light energy of a specific wavelength into gain media (such as erbium-doped fibers, solid-state crystals) to excite the media to produce stimulated radiation, and finally form a stable laser output. Their performance directly determines the power, efficiency and stability of laser systems.

Erbium-doped mode-locked fiber laser is a laser that uses erbium-doped optical fiber as an active medium. Erbium-doped elements can absorb light energy within a specific wavelength range and emit laser photons of a specific wavelength. Mode-locked fiber laser is a laser that can produce extremely short pulses and is often used in scientific research, communication technology, and material processing.

Compared with traditional oxyacetylene, plasma and other cutting processes, laser cutting has the advantages of fast cutting speed, narrow slit, small heat affected zone, good verticality of slit edge, smooth cutting edge, and many kinds of materials that can be cut by laser. Laser cutting technology has been widely used in the fields of automobiles, machinery, electricity, hardware and electrical appliances.