Balance transmission cavity

Fig. 47. Design of the balance transmission cavity 1 cell for sample, 2 resonator, 3 diaphragm, 4 receiving guide...

When the conditions reach the WLC, one can fix the cavity input intensity and measure the cavity transmission linewidth, the experimental results are shown in Fig. 14 (a). It is clear that the Unewidth can be easily controlled with the coupling laser beam power. Another strength with the current mechanism is that one has more freedom to choose the parameters to satisfy the WLC condition in the parameters space as shown in Fig. 7. For a given cavity input intensify, one can always find a set of parameters to balance the linear and nonlinear refractive indices, as well as their derivatives, to reach the WLC condition and make the cavity transmission linewidth maximum. Figure 14 (b) just presents a cross section of the available entire parameter space (such as represented in Fig. 7) in which for each given cavity input intensify (power) a coupling power can always be found to satisfy Eq. (12), i.e., WLC condition, fhe corresponding (optimized) linewidth is shown in the inset of Fig. 14 (b). 

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