Level for award<br> (Hons, MSc, <br> PhD)?
Abstract content <br> (Max 300 words)
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 tune-ability 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 properties of the resonator experimentally.
Apply to be<br> considered for a student <br> award (Yes / No)?
Main supervisor (name and email)<br>and his / her institution
Prof. Andrew Forbes
Would you like to <br> submit a short paper <br> for the Conference <br> Proceedings (Yes / No)?