Integrated multichannel OADM's using polymer bragg grating MZI's

Louay Eldada, Shing Yin, Constantina Poga, Cathy Glass, Robert Blomquist, Robert A Norwood

Research output: Contribution to journalArticle

65 Citations (Scopus)

Abstract

We report the first fabrication of Bragg-grating-based multichannel optical add/drop multiplexers (OADM's) in planar polymers. The filters were designed by cascading multiple stages of single-channel multi-/demultiplexers. Each stage consists of a Mach-Zehnder interferometer (MZI) with a Bragg grating across its arms. The 3-dB couplers in each MZI are multimode interference (MMI) couplers. We fabricated the first tapered MMI couplers, which provide compactness. The gratings were printed photochemically, achieving index differences as high as 10 -3 and reflectivities as large as 33 dB. The 3-dB bandwidth is about 0.2 nm. Apodization was used to reduce sidelobes in the reflection spectrum. Four-channel OADM's were produced and exhibited the proper 400-GHz channel separation and ITU grid wavelength alignment, as well as excellent channel isolation and uniform channel response.

Original languageEnglish (US)
Pages (from-to)1416-1418
Number of pages3
JournalIEEE Photonics Technology Letters
Volume10
Issue number10
DOIs
StatePublished - Oct 1998
Externally publishedYes

Fingerprint

Bragg gratings
Mach-Zehnder interferometers
multiplexing
Polymers
couplers
polymers
Bandwidth
Fabrication
Wavelength
interference
apodization
sidelobes
void ratio
isolation
alignment
grids
gratings
bandwidth
reflectance
filters

Keywords

  • DWDM
  • Gratings
  • MMI
  • OADM
  • Polymers

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Atomic and Molecular Physics, and Optics
  • Physics and Astronomy (miscellaneous)

Cite this

Integrated multichannel OADM's using polymer bragg grating MZI's. / Eldada, Louay; Yin, Shing; Poga, Constantina; Glass, Cathy; Blomquist, Robert; Norwood, Robert A.

In: IEEE Photonics Technology Letters, Vol. 10, No. 10, 10.1998, p. 1416-1418.

Research output: Contribution to journalArticle

Eldada, Louay ; Yin, Shing ; Poga, Constantina ; Glass, Cathy ; Blomquist, Robert ; Norwood, Robert A. / Integrated multichannel OADM's using polymer bragg grating MZI's. In: IEEE Photonics Technology Letters. 1998 ; Vol. 10, No. 10. pp. 1416-1418.
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