Overcoming the speckle correlation limit to achieve a fiber wavemeter with attometer resolution

Autor:	Bruce, Graham D., O'Donnell, Laura, Chen, Mingzhou, Dholakia, Kishan
Rok vydání:	2019
Předmět:	Physics - Optics Physics - Instrumentation and Detectors
Zdroj:	Optics Letters 44, 1367-1370 (2019)
Druh dokumentu:	Working Paper
DOI:	10.1364/OL.44.001367
Popis:	The measurement of the wavelength of light using speckle is a promising tool for the realization of compact and precise wavemeters and spectrometers. However, the resolution of these devices is limited by strong correlations between the speckle patterns produced by closely-spaced wavelengths. Here, we show how principal component analysis of speckle images provides a route to overcome this limit. Using this, we demonstrate a compact wavemeter which measures wavelength changes of a stabilized diode laser of 5.3 am, eight orders of magnitude below the speckle correlation limit. Comment: 5 pages, 4 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1909.00666 Zobrazit plný text záznamu View this record from Arxiv