title: Multimode optical fibers: steady state mode exciter.
abstract: The steady state mode power distribution of the multimode graded index fiber was measured. A simple and effective steady state mode exciter was fabricated by an etching technique. Its insertion loss was 0.5 dB for an injection laser. Deviation in transmission characteristics of multimode graded index fibers can be avoided by using the steady state mode exciter.
authors.forename: M
authors.initials: M
authors.lastname: Ikeda
authors.forename: A
authors.initials: A
authors.lastname: Sugimura
authors.forename: T
authors.initials: T
authors.lastname: Ikegami