Title :
Digital enhanced homodyne interferometry for high precision metrology
Author :
Sutton, Andrew ; Wuchenich, Danielle M R ; Lam, Timothy T Y ; Shaddock, Daniel A.
Author_Institution :
Centre for Gravitational Phys., Australian Nat. Univ., Acton, ACT, Australia
fDate :
Aug. 28 2011-Sept. 1 2011
Abstract :
We present a novel technique for optical interrogation of multiplexed displacement sensors with homodyne detection. Based upon the Digitally Enhanced Interferometry, we propose the use of a complex (IQ) modulation to reduce sensitivity to scattered light and provide multiplexing capabilities. Results of initial prototype testing are presented.
Keywords :
displacement measurement; homodyne detection; light interferometry; light scattering; multiplexing; optical modulation; optical sensors; optical testing; complex IQ modulation; digital enhanced homodyne interferometry; high precision metrology; homodyne detection; initial prototype testing; light scattering; multiplexed displacement sensors; multiplexing capabilities; optical interrogation; Measurement by laser beam; Optical fiber sensors; Optical fibers; Optical interferometry; Optical mixing;
Conference_Titel :
Quantum Electronics Conference & Lasers and Electro-Optics (CLEO/IQEC/PACIFIC RIM), 2011
Conference_Location :
Sydney, NSW
Print_ISBN :
978-1-4577-1939-4
DOI :
10.1109/IQEC-CLEO.2011.6193986
