AI Article Synopsis
- The study presents a straightforward laser setup using an opaque ring and a circular aperture to create various laser beam types, including Gaussian and Flat-top beams.
- The ability to adjust the beam type is achieved by changing the aperture's diameter, which does not necessitate any realignment of the laser cavity.
- The researchers used a digital laser with a spatial light modulator inside the cavity to validate their theory, successfully confirming the expected characteristics of the laser system through experiments.
Article Abstract
We outline a simple laser cavity comprising an opaque ring and a circular aperture that is capable of producing spatially tuneable laser modes, from a Gaussian beam to a Flat-top beam. The tuneability is achieved by varying the diameter of the aperture and thus requires no realignment of the cavity. We demonstrate this principle using a digital laser with an intra-cavity spatial light modulator, and confirm the predicted properties of the resonator experimentally.
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| http://dx.doi.org/10.1364/OE.21.021113 | DOI Listing |
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