Teaching laser pointer capable of displaying various information
The brightness of a laser source is a measure of its output power and beam quality. Essentially, it is the laser power divided by the BPP. Therefore, its unit is W/cm2, and for clarity, the laser diode is at the edge emitter. Other common laser types, including vertical cavity surface emitting lasers (VCSEL), strip/stack, array or quantum cascade lasers (QCL), are not in our discussion due to their obvious deviations. However, similar methods can be used to evaluate each series to narrow the scope of application. The output power of an edge-emitting green laser pointer diode usually varies with the beam quality provided by the design. Among different types of laser diodes, higher beam quality is usually accompanied by lower output power.
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It refers to the material system used to realize the population inversion and generate the stimulated radiation amplification of light. Sometimes it is also called the high power laser pointer gain medium. They can be solid (crystal, glass), gas (atomic gas, ion gas, molecular gas) ), semiconductors and liquids. The main requirement for the laser working material is to achieve a greater degree of population inversion between the specific energy levels of its working particles as much as possible, and to maintain this inversion as effectively as possible during the entire laser emission process; For this reason, the working substance is required to have suitable energy level structure and transition characteristics.
2022-01-06 11:40:57
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