An optical fiber delay line includes: multiple differential delay lines; and multiple switchers connecting the differential delay lines in pairs. The protective layer is formed using a curable composition. The present invention also provides a hiccup relief method including: obtaining a hiccup relief device having a disrupting portion; positioning the hiccup relief device in a mouth of a user; and, delivering a consumable liquid over the hiccup relief device, wherein the disrupting portion disrupts a flow of liquid over the hiccup relief device. The node areas form the connection of the tabs to the base elements.