Provided are optical fiber alignment assemblies, comprising: a plurality of fiber channel members being arranged along a first vertical axis, each fiber channel member comprising a fiber channel configured to accommodate an optical fiber disposed therein, the plurality of fiber channels being parallel to one another, fiber channels adjacent to one another defining a spacing therebetween, the spacing being measured along the first vertical axis; a plurality of resilient members, a resilient member being disposed between adjacent fiber channel members; and an adjustment element, the adjustment element being configured to effect a force oriented along the first vertical axis, and the adjustment member being configured such that actuation of the adjustment member changes a compression of the plurality of resilient members so as to effect an essentially linear variation in the spacing between adjacent fiber channels. Also provided are related methods.