A femtometer-resolved all-fiber speckle wavemeter

Activity: Talk or presentation typesPresentation


The speckle pattern produced when a laser illuminates a random medium can be used to uniquely identify the wavelength of the illuminating source. By performing appropriate multivariate analysis of the speckle pattern produced by propagation through a metre-long step-index multi-mode optical fibre, we achieve a femtometre-precision wavemeter. This can also be used to stabilize the frequency of the laser at arbitrary frequency and thus has exciting potential applications in quantum technology experiments with cold atoms.
Period31 Jan 2018
Event titleSPIE Photonics West 2018
Event typeConference
LocationSan Francisco, United States, CaliforniaShow on map
Degree of RecognitionInternational