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The resonant frequency of the formula can be simplified to: mode, the resonant frequency of the formula can be simplified as: the time of the confocal cavity frequency caused by relative changes as follows: When the change of L? L,? change to??, the relative change in frequency due to: changes in to, changes in general want stability and reproducibility are above 10 degrees. Stability is generally present in the 10 general want stability and reproducibility are at -8 degrees or more.Ruilong green laser pointer company could provide to develop new types of products according to customers’ needs. Currently about stability in general -9, higher degrees up to 10 complex is generally around 10, so the higher up to -11 ~ 10-13; reproduce normally at -7 degrees or so, high up 10-10 ~ 10-12. 10 factors that affect the frequency stability of the cavity length changes of temperature: temperature: generally used in thermal expansion coefficient of the material as the cavity mechanical vibrations: mechanical vibrations: the refractive index to measure impact of changes in damping cavity lasers: temperature T, pressure P, small changes in humidity h, little change, the laser cavity temperature, pressure, humidity changes, it is insignificant and the semi-external-cavity laser cavity: the cavity is part of the atmosphere, temperature T, the external cavity and semi-cavity laser cavity is part of the atmosphere, temperature, pressure P, h, changes in humidity than the discharge of significant change within the more significant discharge. Pressure, humidity changes more significantly within the discharge tube.Ruilong green laser pointer company also provides the printing and packaging service to customers. Should minimize the exposure to some of the atmosphere, while also shielding ventilation to reduce the T part of the atmosphere, while also shielding ventilation to reduce, P, h of the pulse, the pulse frequency stabilization method 11 4.2.2 Overview of passive stability Frequency: passive frequency stability: the use of low thermal expansion of the materials to do the cavity spacer; the use of low thermal expansion of the materials to do the cavity spacer; or expansion coefficient is negative materials and expansion coefficient for the positive material with a certain length, material and positive expansion coefficient of the material with a certain length to thermal expansion cancel each other, this approach is generally used for projects less precision frequency stabilization of the active frequency stabilization:Products of Ruilong green laser pointer company are reliable in quality and favorable in price. Active stability Frequency: the frequency of single-frequency laser with a stable reference frequency compared to the frequency of single-frequency laser with a stable reference frequency compared to when the oscillation frequency from the reference frequency, the discriminator will produce a proportional deviation from the amount of error signal. Reference frequency, the discriminator generates an amount proportional to the deviation of the error signal. The laser center frequency of atomic transitions as a reference frequency, the laser center frequency of atomic transitions as a reference frequency, the laser frequency is locked to the transition center frequency, such as the Lamb dip method. Moved to the center frequency, such as Lamb dip method. The oscillation frequency is locked on the outside of the reference frequency, the oscillation frequency is locked to the external reference frequency, such as molecular or atomic absorption lines as a reference frequency, the selected absorption frequency absorbing material must coincide with the laser frequency.Products from this green laser pointer company are multifunctional. The reference frequency, the selected absorption frequency absorbing material must coincide with the laser frequency. Such as saturated absorption.
Saturated absorption. Act 12 4.2.3 Lamb dip frequency stabilization of the center frequency is the Lamb dip line center frequency ν0, in the vicinity of small changes in frequency will cause a significant change in output power. Of the output power will cause a significant change.