title: Ultra-widely tunable long-period holey-fiber grating by the use of mechanical pressure.
abstract: We report an ultra-widely tunable long-period holey-fiber grating, which combines the wide-range single-mode behavior and transverse strain sensitivity of the holey fibers with the advantages of mechanically induced long-period fiber gratings. We obtain a versatile widely tunable long-period holey-fiber grating with attractive transmission spectral characteristics for optical communications, fiber-based amplifiers, and lasers. The mechanically induced long-period holey-fiber grating shows a continuous tuning range over 500 nm, more than 12 dB depth notches with less than 0.75 dB out-of-band losses, and bandwidth control from 10 to 40 nm.
authors.affiliation: Centro de Investigaciones en Optica, Guanajuato, México.
authors.forename: D E
authors.initials: DE
authors.lastname: Ceballos-Herrera
authors.forename: I
authors.initials: I
authors.lastname: Torres-Gómez
authors.forename: A
authors.initials: A
authors.lastname: Martínez-Ríos
authors.forename: G
authors.initials: G
authors.lastname: Anzueto-Sánchez
authors.forename: J A
authors.initials: JA
authors.lastname: Alvarez-Chávez
authors.forename: R
authors.initials: R
authors.lastname: Selvas-Aguilar
authors.forename: J J
authors.initials: JJ
authors.lastname: Sánchez-Mondragón