Real-time optical spectrum analysis of a light source using a polarimeter

X. Steve Yao, Bo Zhang, Xiaojun Chen, Alan E. Willner
2008 Optics Express  
Optical spectrum analysis and polarization analysis are not generally related by conventional wisdom. In this paper, we show that the spectrum of a light beam can be obtained using a polarimeter, with a resolution and a speed that cannot be achieved with traditional spectrum analysis methods. We experimentally demonstrate a novel polarimeterbased optical spectrum analyzer (P-OSA) and show that the high-speed and high-resolution nature of the device enables rapid measurement of the spectrum of
more » ... ept laser sources at a repetition rate of more than 100 kHz. We show the generation of a unique 3-D plot of the spectral shape of a light source as its center wavelength is swept.
doi:10.1364/oe.16.017854 pmid:18958067 fatcat:rxjc6e5percq3pfu765eigmfo4