Enhancement of free spectral range of the resonance peaks in a long-period fiber grating by controlling material dispersion of cladding modes

H. Jeong, Kyunghwan Oh

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

The transmission spectrum of a long-period fiber grating was analyzed theoretically for an optical fiber whose material dispersion in the cladding region was modified by doping a transition metal, Cr3+. By doping Cr3+ ions into the cladding, we were able to change the effective indices of cladding modes and subsequently the phase matching conditions for coupling with the core mode in a long-period fiber grating. Enhancement of the free spectral range in the long-period fiber grating over 400 nm were rigorously predicted in the proposed fiber structures, which could be applicable in novel filters for a wide band optical communication systems.

Original languageEnglish
Pages (from-to)103-110
Number of pages8
JournalOptics Communications
Volume199
Issue number1-4
DOIs
Publication statusPublished - 2001 Nov 15

Fingerprint

gratings
fibers
Fibers
augmentation
Doping (additives)
Phase matching
Optical communication
phase matching
Transition metals
optical communication
telecommunication
Optical fibers
Communication systems
optical fibers
transition metals
Ions
broadband
filters
ions

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

Cite this

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AB - The transmission spectrum of a long-period fiber grating was analyzed theoretically for an optical fiber whose material dispersion in the cladding region was modified by doping a transition metal, Cr3+. By doping Cr3+ ions into the cladding, we were able to change the effective indices of cladding modes and subsequently the phase matching conditions for coupling with the core mode in a long-period fiber grating. Enhancement of the free spectral range in the long-period fiber grating over 400 nm were rigorously predicted in the proposed fiber structures, which could be applicable in novel filters for a wide band optical communication systems.

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