Etymology The Q stands for the quality factor of the resonator on the laser.
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A device that causes Q-switching.
Around 60-100 W is required to deflect a 60 W beam and hence the Q-switch has to be cooled.2003, W. M. Steen, Kenneth Watkins, Laser Material Processing, page 29:
The Q-switch was placed at the beam waist of the resonator as mentioned before.2009, Soviet Laser Physics - Volume 19, page 1404:
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The invention of the Q-switch quickly followed the invention of the laser discovered in 1961 and published in 1962 [3].2014, Detlev Ristau, Laser-Induced Damage in Optical Materials, page 3:
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The process of Q-switching.
Also, the appearance of Q-switch and ultra-short pulse technology made the peak power improve greatly, and the efficiency of doubling reached 70-80%.2012, Jianquan Yao, Yuyue Wang, Nonlinear Optics and Solid-State Lasers:
The general temporal evolution of the Q-switch is sketched in Fig. 4.2 for the case of an active Q-switch that acts on the internal cavity losses Λ.2014, Marc Eichhorn, Laser Physics: From Principles to Practical Work in the Lab, page 75:
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We see that the timer/controller contains a 10 Hz laser Q-switch signal repeated each 100 ms (the Q-switch pulse width is 100 μs, and the lasar pulse with is 10 ns).2018, Huabei Jiang, Photoacoustic Tomography, page 109:
Q-switch
verb
Etymology The Q stands for the quality factor of the resonator on the laser.
1
To use a Q-switch on (a laser).
A variety of methods are available to Q-switch a fiber laser. Most of them are adaptations of those used to Q-switch bulk lasers.2001, Michel J.F. Digonnet, Rare-Earth-Doped Fiber Lasers and Amplifiers:
The ability to Q-switch this laser results in fast, intense pulses of red light that cannot be generated by other means.2011, Mark Csele, Fundamentals of Light Sources and Lasers, page 295:
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In order to Q-switch an unpolarized laser system, such as Nd:YAG, the lower of the efficiency factors of a longitudinal device determines the extinction ratio of the device.2013, Walter Koechner, Solid-State Laser Engineering, page 505: