All-optical switch and modulator using photochromic dye doped polymer waveguides

Jae Wook Kang, Eunkyoung Kim, Jang Joo Kim

Research output: Contribution to journalArticle

53 Citations (Scopus)

Abstract

We have fabricated all-optical 1×2 Y-branch switch and Mach-Zehnder modulator using photochromic dye doped polymer waveguides. The photochromic dye undergoes reversible structural change from the open form (low refractive index) to the closed form (high refractive index) by irradiation with ultraviolet (365 nm) light and in the reverse direction by irradiation with visible (514 nm) light. The 1×2 Y-branch switch exhibited a cross talk of about -14 dB and the Mach-Zehnder modulator exhibited an extinction ratio of about -12 dB at the wavelength of 1.55 μm using the ultraviolet (365 nm) and visible (514 nm) lights. A simple kinetic model has been used to calculate the refractive index change by the induced photochromic effect. The evolution of the refractive index change is successfully applied to predict the evolution of modulation characteristics.

Original languageEnglish
Pages (from-to)543-548
Number of pages6
JournalOptical Materials
Volume21
Issue number1-3
DOIs
Publication statusPublished - 2003 Jan

Fingerprint

Optical switches
Light modulators
modulators
Refractive index
Polymers
Waveguides
Coloring Agents
switches
Dyes
dyes
refractivity
waveguides
polymers
Modulators
Mach number
Switches
Irradiation
irradiation
luminaires
extinction

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Computer Science(all)
  • Atomic and Molecular Physics, and Optics
  • Spectroscopy
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry
  • Electrical and Electronic Engineering

Cite this

Kang, Jae Wook ; Kim, Eunkyoung ; Kim, Jang Joo. / All-optical switch and modulator using photochromic dye doped polymer waveguides. In: Optical Materials. 2003 ; Vol. 21, No. 1-3. pp. 543-548.
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All-optical switch and modulator using photochromic dye doped polymer waveguides. / Kang, Jae Wook; Kim, Eunkyoung; Kim, Jang Joo.

In: Optical Materials, Vol. 21, No. 1-3, 01.2003, p. 543-548.

Research output: Contribution to journalArticle

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