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Q-switch. In DICTIOUS you will not only get to know all the dictionary meanings for the word
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English
Etymology
The "Q" stands for the quality factor of the resonator on the laser.
Noun
Q-switch (countable and uncountable, plural Q-switches)
- A device that causes Q-switching.
2003, W. M. Steen, Kenneth Watkins, Laser Material Processing, page 29:Around 60-100 W is required to deflect a 60 W beam and hence the Q-switch has to be cooled.
2009, Soviet Laser Physics - Volume 19, page 1404:The Q-switch was placed at the beam waist of the resonator as mentioned before.
2014, Detlev Ristau, Laser-Induced Damage in Optical Materials, page 3:The invention of the Q-switch quickly followed the invention of the laser discovered in 1961 and published in 1962 [3].
- The process of Q-switching.
2012, Jianquan Yao, Yuyue Wang, Nonlinear Optics and Solid-State Lasers: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%.
2014, Marc Eichhorn, Laser Physics: From Principles to Practical Work in the Lab, page 75: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.
2018, Huabei Jiang, Photoacoustic Tomography, page 109: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).
Verb
Q-switch (third-person singular simple present Q-switches, present participle Q-switching, simple past and past participle Q-switched)
- To use a Q-switch on (a laser).
2001, Michel J.F. Digonnet, Rare-Earth-Doped Fiber Lasers and Amplifiers: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.
2011, Mark Csele -, Fundamentals of Light Sources and Lasers, page 295:The ability to Q-switch this laser results in fast, intense pulses of red light that cannot be generated by other means.
2013, Walter Koechner -, Solid-State Laser Engineering, page 505: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.