Optical laser oscillator
Contains multiple components, including: two optical mirrors or closer to the gain medium. The mirror reflects the light transmitted into the gain medium-sometimes hundreds of times-in order to correctly amplify it for output.
Important laser performance characteristics to be considered when studying solid-state green laser pointer include wavelength range, beam size, and beam divergence. The wavelength range corresponds to the wavelength of the laser. The beam size refers to the maximum size of the beam when it leaves the laser. The beam divergence refers to the change of the beam size with the distance from the laser. The average power is the power (watts) of a continuous wave laser. The interval between the longitudinal modes is the frequency interval between the longitudinal modes, which is usually referred to as the free spectral range of the laser cavity. Noise, RMS is the root mean square change in amplitude caused by noise. The pulse laser specifications to be considered include the duration and repetition rate of the energy pulse. Using the most high-quality and durable aviation diode laser and aluminum body material, the laser pointer can achieve very stable and reliable performance in various demonstration fields. Generally, the service life of a laser pointer is extremely long, up to 10,000 hours and a 6-month warranty.
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The user should not directly see the beam from the US Food and Drug Administration (FDA) Class 3a laser pointer, which is classified as "dangerous." (Class 2 laser is marked as "Caution".) If a person is directly affected by the eyes, the possible hazards are fear effects, instantaneous blindness, glare, and afterimages. Laser diode pointers that operate in the visible radiation region (400 to 760 nanometers [nm]) are becoming more and more popular. These guides are for educators to use when speaking in a class or conference. They are also useful in any situation where special items need to be indicated in educational situations. The conversion efficiency of green light at 532nm is very low, less than 10%. For example, a 50mW high power laser pointer can be obtained from a 500mW infrared laser diode. The 200mW red laser pointer can achieve similar visual effects as the 20mW green laser pointer, and the power consumption of the two lasers is almost the same.
2022-01-08 09:58:26
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