Influence of beam radii on a common-path compensation method for laser beam drifts in laser collimation systems. (12th July 2016)

• Record Type: Journal Article
• Authors: Zhao, Yuqiong; Feng, Qibo; Zhang, Bin; Cui, Cunxing
• Is Part Of: Measurement science & technology. Volume 27:Number 8(2016:Aug.)
• Publication Date: 2016-07-12
• Subjects: common-path compensation -- beam radius -- beam drift -- laser collimation measurements; Physical measurements -- Periodicals; Scientific apparatus and instruments -- Periodicals; Equipment and Supplies -- Periodicals; Science -- instrumentation -- Periodicals; Technology -- instrumentation -- Periodicals; Mesures physiques -- Périodiques; Physical measurements; Scientific apparatus and instruments; Periodicals; 502.87
• DOI: 10.1088/0957-0233/27/8/084013
• Languages: English
• ISSNs: 0957-0233

Abstract

Abstract: The laser beam drift is a main factor that influences laser collimation measurement accuracies. In such measurements, the common-path compensation method is an efficient way to eliminate errors which are normally produced by the laser beam drift. Based on our current common-path compensation system, compensations for the laser beam drift were studied by different laser beam radii and detectors. The measurements have shown that the compensation effect for 3 mm beam radius is better than the ones of 1.5 mm and 4.0 mm beam radii. Based on this, the ratio between the 3 mm beam radius and the total area of the quadrant detector, which is 36%, has indicated the best compensation effect.