Fabrication and characterization of bandpass filters based on concatenated chirped fiber gratings

K. Sugden*, L. Zhang, J.A.R. Williams, R.W. Fallon, L.A. Everall, K.E. Chisholm, I Bennion

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

Practical, low-loss (<2 dB), fiber Bragg grating single-passband transmission filters have been realized with >30 dB out-of-band rejection over ∼25 nm spectral widths. The approach adopted is based on the concatenation of two or more tailored broadband chirped gratings fabricated with low short-wavelength loss to maximize the rejection and stopband width in a filter with ∼1 nm passband. The effect of thermal aging for similar complex structures is considered in the context of three different fiber types: standard telecommunication, high germania(Ge)-doped and boron/germania(B/Ge)-codoped. It is shown that while hydrogenated B/Ge-codoped fiber exhibits excellent photosensitivity, the resulting decrease in guiding strength and thermal stability may make germania-doped fiber the more attractive choice.

Original languageEnglish
Pages (from-to)1424-1432
Number of pages9
JournalJournal of Lightwave Technology
Volume15
Issue number8
DOIs
Publication statusPublished - Aug 1997

Fingerprint

Bandpass filters
bandpass filters
Germanium
germanium
gratings
Fabrication
fabrication
fibers
Fibers
rejection
Boron
boron
Photosensitivity
Thermal aging
photosensitivity
Telecommunication
telecommunication
Thermodynamic stability
thermal stability
broadband

Keywords

  • bandpass filters
  • broadband
  • chirped gratings
  • fiber Bragg gratings
  • thermal stability

Cite this

@article{066802c191f74899a6dda98bb592bd44,
title = "Fabrication and characterization of bandpass filters based on concatenated chirped fiber gratings",
abstract = "Practical, low-loss (<2 dB), fiber Bragg grating single-passband transmission filters have been realized with >30 dB out-of-band rejection over ∼25 nm spectral widths. The approach adopted is based on the concatenation of two or more tailored broadband chirped gratings fabricated with low short-wavelength loss to maximize the rejection and stopband width in a filter with ∼1 nm passband. The effect of thermal aging for similar complex structures is considered in the context of three different fiber types: standard telecommunication, high germania(Ge)-doped and boron/germania(B/Ge)-codoped. It is shown that while hydrogenated B/Ge-codoped fiber exhibits excellent photosensitivity, the resulting decrease in guiding strength and thermal stability may make germania-doped fiber the more attractive choice.",
keywords = "bandpass filters, broadband, chirped gratings, fiber Bragg gratings, thermal stability",
author = "K. Sugden and L. Zhang and J.A.R. Williams and R.W. Fallon and L.A. Everall and K.E. Chisholm and I Bennion",
year = "1997",
month = "8",
doi = "10.1109/50.618374",
language = "English",
volume = "15",
pages = "1424--1432",
journal = "Journal of Lightwave Technology",
issn = "0733-8724",
publisher = "IEEE",
number = "8",

}

Fabrication and characterization of bandpass filters based on concatenated chirped fiber gratings. / Sugden, K.; Zhang, L.; Williams, J.A.R.; Fallon, R.W.; Everall, L.A.; Chisholm, K.E.; Bennion, I.

In: Journal of Lightwave Technology, Vol. 15, No. 8, 08.1997, p. 1424-1432.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Fabrication and characterization of bandpass filters based on concatenated chirped fiber gratings

AU - Sugden, K.

AU - Zhang, L.

AU - Williams, J.A.R.

AU - Fallon, R.W.

AU - Everall, L.A.

AU - Chisholm, K.E.

AU - Bennion, I

PY - 1997/8

Y1 - 1997/8

N2 - Practical, low-loss (<2 dB), fiber Bragg grating single-passband transmission filters have been realized with >30 dB out-of-band rejection over ∼25 nm spectral widths. The approach adopted is based on the concatenation of two or more tailored broadband chirped gratings fabricated with low short-wavelength loss to maximize the rejection and stopband width in a filter with ∼1 nm passband. The effect of thermal aging for similar complex structures is considered in the context of three different fiber types: standard telecommunication, high germania(Ge)-doped and boron/germania(B/Ge)-codoped. It is shown that while hydrogenated B/Ge-codoped fiber exhibits excellent photosensitivity, the resulting decrease in guiding strength and thermal stability may make germania-doped fiber the more attractive choice.

AB - Practical, low-loss (<2 dB), fiber Bragg grating single-passband transmission filters have been realized with >30 dB out-of-band rejection over ∼25 nm spectral widths. The approach adopted is based on the concatenation of two or more tailored broadband chirped gratings fabricated with low short-wavelength loss to maximize the rejection and stopband width in a filter with ∼1 nm passband. The effect of thermal aging for similar complex structures is considered in the context of three different fiber types: standard telecommunication, high germania(Ge)-doped and boron/germania(B/Ge)-codoped. It is shown that while hydrogenated B/Ge-codoped fiber exhibits excellent photosensitivity, the resulting decrease in guiding strength and thermal stability may make germania-doped fiber the more attractive choice.

KW - bandpass filters

KW - broadband

KW - chirped gratings

KW - fiber Bragg gratings

KW - thermal stability

UR - http://www.scopus.com/inward/record.url?scp=0031210669&partnerID=8YFLogxK

UR - http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=618374

U2 - 10.1109/50.618374

DO - 10.1109/50.618374

M3 - Article

VL - 15

SP - 1424

EP - 1432

JO - Journal of Lightwave Technology

JF - Journal of Lightwave Technology

SN - 0733-8724

IS - 8

ER -