Abstract
We present a new set-up which makes possible the generation of a frequency comb with a fully adjustable sharp edge. We use a passive ring resonator closed by a frequency stabilized AOM. The cavity design is original as well as the laser-cavity coupling scheme which give the possibility to generate very intense and broad spectra. The frequency stability of the sharp edge is assured by the actively stabilized single mode laser, that is injected inside the cavity, and by the AOM stability. Moreover the sharp edge intensity can be easily controlled through the diffraction efficiency of the AOM. In our scheme, the input laser beam (1 mW single-mode He-Ne laser) is coupled into the ring cavity through the second AOM diffraction order as shown in Fig. 1
© 1996 Optical Society of America
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