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China Wholesale Verdet constant Suppliers – LPT-11 Serial Experiments on Semiconductor Laser – Labor

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China Wholesale Verdet constant Suppliers – LPT-11 Serial Experiments on Semiconductor Laser – Labor Detail:

Description

Laser generally consists of three parts
(1) Laser working medium
The generation of laser must choose the appropriate working medium, which can be gas, liquid, solid or semiconductor. In this kind of medium, the inversion of the number of particles can be realized, which is the necessary condition to obtain laser. Obviously, the existence of metastable energy level is very beneficial to the realization of the number inversion. At present, there are nearly 1000 kinds of working media, which can produce a wide range of laser wavelengths from VUV to far infrared.
(2) Incentive source
In order to make the inversion of the number of particles appear in the working medium, it is necessary to use certain methods to excite the atomic system to increase the number of particles in the upper level. In general, gas discharge can be used to excite dielectric atoms by electrons with kinetic energy, which is called electrical excitation; pulse light source can also be used to irradiate working medium, which is called optical excitation; thermal excitation, chemical excitation, etc. Various excitation methods are visualized as pump or pump. In order to obtain the laser output continuously, it is necessary to pump continuously to keep the number of particles in the upper level more than that in the lower level.
(3) Resonant cavity
With suitable working material and excitation source, the inversion of particle number can be realized, but the intensity of stimulated radiation is very weak, so it can not be applied in practice. So people think of using optical resonator to amplify. The so-called optical resonator is actually two mirrors with high reflectivity installed face to face at both ends of the laser. One is almost total reflection, the other is mostly reflected and a little transmitted, so that the laser can be emitted through the mirror. The light reflected back to the working medium continues to induce new stimulated radiation, and the light is amplified. Therefore, the light oscillates back and forth in the resonator, causing a chain reaction, which is amplified like an avalanche, producing a strong laser output from one end of the partial reflection mirror.

Experiments 

1. Output power characterization of semiconductor laser

2. Divergent angle measurement of semiconductor laser

3. Degree of polarization measurement of semiconductor laser

4. Spectral characterization of semiconductor laser

Specifications

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Specifications

Semiconductor Laser Output Power< 5 mW
Center Wavelength: 650 nm
Semiconductor Laser Driver 0 ~ 40 mA (continuously adjustable)
CCD Array Spectrometer Wavelength Range: 300 ~ 900 nm
Grating: 600 L/mm
Focal Length: 302.5 mm
Rotary Polarizer Holder Minimum Scale: 1°
Rotary Stage 0 ~ 360°, Minimum Scale: 1°
Multi-Function Optical Elevating Table Elevating Range>40 mm
Optical Power Meter 2 µW ~ 200 mW, 6 scales

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Every member from our high efficiency sales team values customers' needs and business communication for China Wholesale Verdet constant Suppliers – LPT-11 Serial Experiments on Semiconductor Laser – Labor , The product will supply to all over the world, such as: Spain, Chicago, Bhutan, We insist on the principle of "Credit being primary, Customers being the king and Quality being the best", we are looking forward to the mutual cooperation with all friends at home and abroad and we will create a bright future of business.
  • In general, we are satisfied with all aspects, cheap, high-quality, fast delivery and good procuct style, we will have follow-up cooperation!
    5 Stars By Erin from Brazil - 2017.05.02 18:28
    This supplier's raw material quality is stable and reliable, has always been in accordance with the requirements of our company to provide the goods that quality meet our requirements.
    5 Stars By Ethan McPherson from Paraguay - 2018.02.12 14:52
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