Fiber lasers can be developed on the basis of optical fiber amplifiers: under the action of pump light, high power density can be easily formed in the optical fiber, resulting in a laser energy level “particle number reversal†of the laser working substance, when properly added to the positive feedback loop ( The resonant cavity forms a laser oscillator output. So what's the structure of the fiber laser ? Let's take a look.
Fiber laser structure classification
1. According to the type of optical fiber materials, fiber lasers can be divided into:
(1) Crystal fiber lasers. The working substance is a laser crystal fiber, mainly Ruby single crystal fiber laser and nd3+:YAG single crystal fiber laser.
(2) Nonlinear optical fiber lasers. There are mainly stimulated Raman scattering fiber lasers and stimulated Brillouin scattering fiber lasers.
(3) rare earth doped fiber lasers. The matrix material of the optical fiber is glass, and the optical fiber is doped with rare earth element ions to activate it and make a fiber laser.
(4) Plastic fiber lasers. A fiber laser is made by incorporating a laser dye into a plastic fiber core or cladding.
2. Classified by gain media:
(1) Crystal fiber lasers. The working substance is a laser crystal fiber, mainly Ruby single crystal fiber laser and Nd3 +: YAG single crystal fiber laser.
(2) Nonlinear optical fiber lasers. There are mainly stimulated Raman scattering fiber lasers and stimulated Brillouin scattering fiber lasers.
(3) rare earth doped fiber lasers. The optical fiber is doped with rare earth element ions to activate (Nd3+, Er3+, Yb3+, Tm3+, etc., the matrix may be quartz glass, zirconium fluoride glass, or single crystal) to make a fiber laser.
(4) Plastic fiber lasers. A fiber laser is made by incorporating a laser dye into a plastic fiber core or cladding.
3. According to the resonator structure is classified as FP cavity, ring cavity, loop reflector fiber resonator and "8" shaped cavity, DBR fiber laser, DFB fiber laser.
4. According to the optical fiber structure, it is classified into single-clad fiber laser, double-clad fiber laser, photonic crystal fiber laser and special fiber laser.
5. According to the output laser characteristics are classified as continuous fiber laser and pulsed fiber laser, in which pulsed fiber laser can be divided into Q-switched fiber laser (pulse width is ns level) and mode-locked fiber laser (pulse width is Ps or fs magnitude).
5. According to the number of laser output wavelengths can be divided into single-wavelength fiber lasers and multi-wavelength fiber lasers.
7. According to the laser output wavelength tunable characteristics are divided into tunable single-wavelength lasers, tunable multi-wavelength lasers.
8. The laser output wavelength band is classified into S-band (1460~1530 nm), C-band (1530~1565 nm), and L-band (1565~1610 nm).
9. According to whether it is mode-locked, it can be divided into: continuous optical laser and mode-locked laser. A typical multi-wavelength laser is a continuous optical laser.
10. According to mode-locked devices, they can be classified into passive mode-locked lasers and active mode-locked lasers.
Among them, passive mode-locked lasers also have: Equivalent/pseudo-saturable absorbers: Non-linear rotary mode-locked lasers (8-character, NOLM and NPR) True Saturable absorbers: SESAM or nanomaterials (carbon nanotubes, graphene, topological insulators) Wait).
Xiaobian epilogue: The above has introduced various fiber laser structures for everyone, and we hope to help everyone. For more relevant knowledge, please continue to pay attention to this website information platform. Follow-up will present more exciting content for everyone.
Fiber laser structure classification
1. According to the type of optical fiber materials, fiber lasers can be divided into:
(1) Crystal fiber lasers. The working substance is a laser crystal fiber, mainly Ruby single crystal fiber laser and nd3+:YAG single crystal fiber laser.
(2) Nonlinear optical fiber lasers. There are mainly stimulated Raman scattering fiber lasers and stimulated Brillouin scattering fiber lasers.
(3) rare earth doped fiber lasers. The matrix material of the optical fiber is glass, and the optical fiber is doped with rare earth element ions to activate it and make a fiber laser.
(4) Plastic fiber lasers. A fiber laser is made by incorporating a laser dye into a plastic fiber core or cladding.
2. Classified by gain media:
(1) Crystal fiber lasers. The working substance is a laser crystal fiber, mainly Ruby single crystal fiber laser and Nd3 +: YAG single crystal fiber laser.
(2) Nonlinear optical fiber lasers. There are mainly stimulated Raman scattering fiber lasers and stimulated Brillouin scattering fiber lasers.
(3) rare earth doped fiber lasers. The optical fiber is doped with rare earth element ions to activate (Nd3+, Er3+, Yb3+, Tm3+, etc., the matrix may be quartz glass, zirconium fluoride glass, or single crystal) to make a fiber laser.
(4) Plastic fiber lasers. A fiber laser is made by incorporating a laser dye into a plastic fiber core or cladding.
3. According to the resonator structure is classified as FP cavity, ring cavity, loop reflector fiber resonator and "8" shaped cavity, DBR fiber laser, DFB fiber laser.
4. According to the optical fiber structure, it is classified into single-clad fiber laser, double-clad fiber laser, photonic crystal fiber laser and special fiber laser.
5. According to the output laser characteristics are classified as continuous fiber laser and pulsed fiber laser, in which pulsed fiber laser can be divided into Q-switched fiber laser (pulse width is ns level) and mode-locked fiber laser (pulse width is Ps or fs magnitude).
5. According to the number of laser output wavelengths can be divided into single-wavelength fiber lasers and multi-wavelength fiber lasers.
7. According to the laser output wavelength tunable characteristics are divided into tunable single-wavelength lasers, tunable multi-wavelength lasers.
8. The laser output wavelength band is classified into S-band (1460~1530 nm), C-band (1530~1565 nm), and L-band (1565~1610 nm).
9. According to whether it is mode-locked, it can be divided into: continuous optical laser and mode-locked laser. A typical multi-wavelength laser is a continuous optical laser.
10. According to mode-locked devices, they can be classified into passive mode-locked lasers and active mode-locked lasers.
Among them, passive mode-locked lasers also have: Equivalent/pseudo-saturable absorbers: Non-linear rotary mode-locked lasers (8-character, NOLM and NPR) True Saturable absorbers: SESAM or nanomaterials (carbon nanotubes, graphene, topological insulators) Wait).
Xiaobian epilogue: The above has introduced various fiber laser structures for everyone, and we hope to help everyone. For more relevant knowledge, please continue to pay attention to this website information platform. Follow-up will present more exciting content for everyone.
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