Chinese Optics Letters, Volume. 3, Issue 9, 09524(2005)
The application of sample-and-hold circuits in the laser frequency-shifting
A new method of frequency-shifting for a diode laser is realized. Using a sample-and-hold circuit, the error signal can be held by the circuit during frequency shifting. It can avoid the restraint of locking or even lock-losing caused by the servo circuit when we input a step-up voltage into piezoelectric transition (PZT) to achieve laser frequency-shifting.
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Shuyu Zhou, Shanyu Zhou, Yuzhu Wang, "The application of sample-and-hold circuits in the laser frequency-shifting," Chin. Opt. Lett. 3, 09524 (2005)
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