A simple and reliable, optical all-fibre, data acquisition trigger signal for fibre-laser asynchronous optical sampling systems. (18th March 2019)

• Record Type: Journal Article
• Authors: Yang, Xue; Su, Bo; Wu, Yaxiong; Zhang, Hongfei; He, Jingsuo; Jones, David R
• Is Part Of: Measurement science & technology. Volume 30:Number 4(2019:Apr.)
• Publication Date: 2019-03-18
• Subjects: laser measurement applications -- ultrafast optics -- ultrafast spectroscopy -- spectroscopy -- time-resolved -- THz spectroscopy; 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: 10.1088/1361-6501/ab0bfc
• Languages: English
• ISSNs: 0957-0233

Abstract

Abstract: We present an optical all-fibre data acquisition trigger signal particularly suited for fibre-laser asynchronous optical sampling systems. We demonstrate that in the case where the laser spectra are inadequately matched and deliver a weak interferometric signal, post electronic filtering can significantly enhance the signal, removing the necessity for optical band-pass filtering. The method requires no free-space optics and no precise alignment of focused beam spots, eliminating beam pointing stability and walk-off issues.