Reflection-type electrically controllable diffraction grating and its application to intracavity laser modulation.
Using the reflection of linearly polarized light from electrooptic material with an interdigital arrangement of electrodes, an electrically controllable diffraction (ECD) grating has been constructed for a He-Ne 3.39-microm laser. An intracavity modulation of 30% was obtained for a He-Ne 3.39-microm laser by setting the ECD grating inside the resonator with an applied voltage of 50 V.
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