This kind of wireless presenter green laser pointer adopts the radiofrequency remote control design

Of course, this is under the assumption that isotope pumped level to upper level relaxation rate similar conclusions. In general, the isotopes in the transition rates are similar. If corresponding by stimulated transition, in general, the broadening of spectral lines is not conducive to gain the improvement of the laser oscillation; for some urgent need to expand the laser light with the situation, the lines widen or be of value. Isotopic lines widen the other Keziliyong place is in the ring laser with a laser work of atoms of different isotopes, the transition lines, slight offset when the ring laser longitudinal mode frequency in the media center frequency. It is unnecessary for the customer to point the emitter of wireless presenter green laser pointer to the receiver.
Originally, because both positive and negative direction of propagation of two longitudinal mode will consume the same group of sub-speed stimulated the particles into the competition leads to the instability of the laser output. If the laser work atoms have different isotope ring laser longitudinal mode frequency can be located in the two isotopes of the respective center frequency, consumption of the respective isotopes of the same to the sub speed, thus avoiding the same group to the sub speed by the excited particles the competition lead to instability of the laser output. The existence of isotopes can be stabilized ring laser output. If the corresponding devaluation level, the broadening of spectral lines will be conducive to the accumulation of the number of particles in a single level, population inversion improved, and is conducive to the formation of laser oscillation. It is within the effective acting range of wireless presenter  green laser pointer .
What is the significance of the linear function? Linear function with the small signal gain coefficient what is the relationship? A model for the spontaneous emission transition probability of a photon in this mode caused by the shock transition probabilities, and why? Need to make light of the small-signal medium gain approximation assumption, and why? Small-signal gain factor of the impact of media which, three, four-level system is any different? "Three-level system is higher than the efficiency of the four-level system on it, why? Alone for the first type, three, four-level system ability to separate the pros and cons, and why? The Shishu non-homogeneously broadened medium frequency domain hole burning causes, and its depth. So that the customer can use green laser pointer with more ease and convenience.
Hole burning phenomenon of laser medium, the formation mechanism, and its macro performance, and illustrate its application. What types of hole burning phenomenon? "Hole burning" phenomenon where, what impact the performance of the laser, and why? Ruby transparency to the right 694.3nm? If so, how do? If not, why not? A Gaussian shape of the giant pulse fired at a thin fuel cartridge, try to draw through the pulse shape, and explain the reasons for the formation. Laser is not always gain saturation? Why? Medium-gain coefficient of the laser threshold condition, the physical meaning of what? What is the difference between the rate equations in the laser medium and the laser with examples to illustrate. The technology of   green laser pointer is revised according to the requirement of the customer.