Origin of group delay ripple in chirped fiber Bragg gratings and its effective reduction method

Tetsuro Komukai, Tetsuro Inui, Masataka Nakazawa

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

In this paper, the characteristics of a fiber Bragg grating fabricated with a chirped phase mask are compared with those of a fiber Bragg grating that is made chirped by addition of distortion to a uniform fiber Bragg grating without phase error. It is found that the dominant cause of generation of group delay ripples lies in the phase error of the chirped phase mask. It is demonstrated that a chirped fiber Bragg grating with smaller group delay ripples than the conventional ones can easily be obtained by adding linear distortions made of insertion of a rod containing a fiber Bragg grating without phase error into an S-shaped groove.

Original languageEnglish
Pages (from-to)76-84
Number of pages9
JournalElectronics and Communications in Japan, Part II: Electronics (English translation of Denshi Tsushin Gakkai Ronbunshi)
Volume86
Issue number8
DOIs
Publication statusPublished - 2003 Aug 1
Externally publishedYes

Keywords

  • Chirped fiber Bragg grating
  • Electron beam writing
  • Fiber Bragg grating
  • Group delay ripple
  • Phase mask

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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