Answers are grounded in this paper and cite their sources.
A system for accurate balancing and controlled unbalancing of the optical path difference in all-fiber optical interferometers is described. Interferometers with various arm lengths (1-30 m) and with initial optical path differences of as much as 1 cm have been successfully balanced within a 5-microm range. In addition, the proposed system allows for controlled unbalancing of arbitrary all-fiber optical interferometers with a precision better than 5 microm.
No takes yet. Share an insight, caveat, or question.
Sirotić et al. (2002) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: