Homodyne digital interferometry for a sensitive fiber frequency reference
Digitally enhanced homodyne interferometry enables robust interferometric sensitivity to be achieved in an optically simple configuration by shifting optical complexity into the digital signal processing regime. We use digitally enhanced homodyne interferometry in a simple, all-fiber Michelson interferometer to achieve a frequency reference stability of better than 20 Hz/ √ Hz from 10 mHz to 1 Hz, satisfying, for the first time in an all fiber system, the stability requirements for the...[Show more]
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