Laser beam characterization using agile digital-analog photonics

Mumtaz Sheikh; Philip Marraccini; Nabeel A. Riza

doi:10.1117/12.849686

20 April 2010 Laser beam characterization using agile digital-analog photonics

Mumtaz Sheikh, Philip Marraccini, Nabeel A. Riza

Proceedings Volume 7675, Photonics in the Transportation Industry: Auto to Aerospace III; 767508 (2010) https://doi.org/10.1117/12.849686
Event: SPIE Defense, Security, and Sensing, 2010, Orlando, Florida, United States

Abstract

Precise knowledge of laser beam parameters is a key requirement in many photonics applications including for lasers and optics used in the transportation industry. This paper reports on a novel motion-free laser beam characterization system using electronically agile digital and analog photonics such as a Digital Micromirror Device (DMD) and an analog variable focal length lens. The proposed system has the capability of measuring all the parameters of a laser beam including minimum waist size, minimum waist location, beam divergence and the beam propagation parameter (M²). Experimental results demonstrate the measurement of the minimum beam waist size and location for a test 633 nm fundamental mode Gaussian laser beam. The system is also applicable for imaging of arbitrary beams including non-laser beams.

Citation Download Citation

Mumtaz Sheikh, Philip Marraccini, and Nabeel A. Riza "Laser beam characterization using agile digital-analog photonics", Proc. SPIE 7675, Photonics in the Transportation Industry: Auto to Aerospace III, 767508 (20 April 2010); https://doi.org/10.1117/12.849686

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