2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/197893We study the production and signatures of doubly charged Higgs bosons in the process γγH^{- -} H^{++} at the e^-e^+ International Linear Collider and CERN Linear Collider, where the intermediate photons are given by the Weizs[a\ddot]cker-Willians and laser backscattering distributions.6 pages, 9 figures. To be published in Physical Review DHigh Energy Physics - Phenomenologytext