Find the trail of green laser pointer

Sometime after dropping the ultrasonic field at this time loss, Q value removed ultrasound field, the beam does not occur partial cavity axis the great loss of value to retreat to go a certain period of time compared to the latter of the ultrasonic field beam does not occur bias increased. fold increase in value of the Q value increased acousto-optic Q EO higher voltage (10 acousto-optic and electro-optical Q-, the latter a higher voltage 3 ~ 104V), the former voltage is compared with the EO is low (102V) acousto-optic Q-switched technology is the application of the broader kind of technology is low. acousto-optic technology is the wider application of a technology. Especially at night, people can easily find the trail and position of green laser pointer.technology is the wider application of a technology 13 4.6.5 dye Q-dye tune the dye Q-switched laser schematic diagram in Figure 4-29 is dye adjust the schematic diagram of the laser dye tune the laser schematic, it is inserted in a solid-state laser cavity of a dye box. of a dye box dye box equipped with a saturable dye, dye box is equipped with a saturable dye issued by this dye to the laser light has a strong absorption of the laser light emitted has a strong absorption, but with enhanced absorption coefficient of incident light decreases and decreases with enhanced absorption coefficient of the incident one of its The absorption coefficient can be expressed as follows: the absorption coefficient can be expressed by the following formula: α = α 0 1 + Figure (4-29) dye Q-device schematic I Is intracavity intensity is weak, dye light there is a strong absorption value of cavity loss. with cavity cavity light intensity is very weak when the dye is light there is a strong absorption,The LM-2012 green laser pointer could easily light a match. the cavity loss value with the cavity dye light of the strong absorption of cavity loss, Q The value of small light intensity gradually increased, the absorption gradually reduce the loss, the large absorption of the Q value is gradually reduced, the loss of small value. intensity gradually enhanced absorption of the dye gradually reduce the loss of small value to the selection of dyes to take into account several aspects: consistent with the basic absorption peak of the center wavelength of the laser wavelength; LM-2012 green laser pointer is made of aerometal.basically consistent with the center of the dye absorption peak wavelength and the laser wavelength; dye should be appropriate saturation intensity to ensure getting the right speed "switch"; dye should be appropriate saturation intensity, "switch" to ensure getting the right speed; dye solution should have a certain stability and shelf life, in order to facilitate the practical dye solution should have a certain stability and shelf life, in order to facilitate practical 14 4.7 laser mode-locked 1964 and development of a new pulse compression technology - clamping technology, this technology, but also the development of starting a new pulse compression technology - clamping technology this technology - clamping technology to instantly disappearing world to show to the people in front of the first review of free-running multimode laser output characteristics of free-running laser usually contains more than one longitudinal mode, free-running laser usually contains more than one longitudinal mode, The material makes green laser pointer solid and durable.the longitudinal mode frequency of free-running mode laser output due to the free-running multimode laser oscillation mode amplitude and phase are independent of each other, random, so the total light field of each mode light field incoherent election plus an independent, random, so the total The light field mode optical field incoherent election plus the total output light intensity is the intensity of the various oscillation modes and the total light intensity is the intensity of the various oscillation modes and the core idea of the clamping principle.