Q-switch

plural Q-switches

1. countableuncountableA device that causes Q-switching.

   The Q-switch was placed at the beam waist of the resonator as mentioned before.

   2009, Soviet Laser Physics - Volume 19, page 1404

   2 more examples

   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 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

   Synonyms: Q spoiler

2. countableuncountableThe 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

   2 more examples

   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

   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

present singular third person Q-switches · participle present Q-switching · participle past Q-switched · past Q-switched

1. transitiveTo use a Q-switch on (a laser).

   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

   2 more examples

   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

   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