Pulse generation with an acousto-optic frequency shifter in a passive cavity

Kowalski, F. V.; Squier, J. A.; Pinckney, J. T.
March 1987
Applied Physics Letters;3/23/1987, Vol. 50 Issue 12, p711
Academic Journal
A train of pulses is generated by coupling the cw output of a single frequency He-Ne laser into a passive ring ‘‘cavity’’ which contains an acousto-optic frequency shifter. Each cavity pass shifts the frequency of the wave by 80 MHz. This results in an intensity pattern which is an Airy function in time. For a single frequency input, the output pulse width is 2 ns with a repetition rate of 80 MHz. Data are also presented on the output of this device for multimode cw input.


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