Introduction of the corelative components of green laser pointer system

Introduction of the corelative components of green laser pointer system
Amplification, the initial compression, the formation of the initial pulse. (2) the formation of stable mode-locked pulse mode-locked pulses form after the initial cavity, the peak power due to its large cavity formed after the initial mode-locked pulse, because of its peak power is high, due to the gain medium nonlinear Kerr effect, in the gain medium due to the nonlinear Kerr effect, self-phase modulation pulse generator (SPM), a serious change in the pulse phase. When the light pulse through the doped titanium sapphire rod, seriously changed the pulse phase.The green laser pointer would be no longer in the quality guarantee range if people could not provide the effective voucher. When they are causing a lot of second-order group velocity dispersion (GVD) and third-order dispersion. In this and the third-order dispersion. Has caused a lot of second-order group velocity dispersion and is a stage in the third-order dispersion. Amplitude modulation of the gain medium and gain self-amplified still plays a major role in a stage. Amplitude modulation of the gain medium and gain self-amplified still play a major role, but because the pulse power increases, but because the pulse power increases, inevitably generate significant self-phase modulation and group velocity dispersion is not conducive to further reduce the pulse wide, positive group velocity dispersion, is not conducive to further compress the pulse width, and use the appropriate negative dispersion to compensate, and we can get the narrowest pulse width. Dispersed compensation, it can be the narrowest pulse width. The green laser pointer would be no longer in the quality guarantee range if people could not provide the copy of guarantee card.A large number of experiments and analysis calculations indicate that additional measures must be used since the mode-locked to start a large number of experiments and analysis calculations indicate that the (initial work in the continuous state. The easiest way is to tap the initial endoscopic work platform or a continuous state .) Initially working in a continuous state of disturbance intensity to produce a self-start mode-locking, started the Ti: S laser mode locking to generate a self-locking strength of disturbance to start, after start: steady running by the surrounding environment disturbances, once lost lock must be restarted and stable surrounding environment by running disturbances, loss of lock must be restarted once, for the invention of many people active and passive start and maintain the Ti:The green laser pointer would be no longer in the quality guarantee range if people could not provide the copy of voucher. Since the invention of this mode-locked operation of many active and passive start and maintain: S from mode-locked operation method: turn: (1). the use of acousto-optic modulator to start recycling program, that is added to the original self-mode-locked laser using acousto-optic modulator to start recycling program, a sound and light modulator, and its frequency matches the inverse of the cavity period, an acousto-optic modulator to frequency and period of the last match the cavity, the laser output is the order of tens to hundreds of ps pulses of tens to order of magnitude of hundreds of pulses, pulse repetition frequency is determined by the order of the modulator drive frequency of the pulse rate is determined, then the laser is actively mode-locked state. Appropriate adjustments to the cavity, the rate decision, when the green laser led is actively mode-locked state.