UV photosensitivity in a Ta2O5 rib waveguide Mach-Zehnder interferometer

Chao Yi Tai; Christos Grivas; James S. Wilkinson

doi:10.1109/LPT.2004.826757

UV photosensitivity in a Ta₂O₅ rib waveguide Mach-Zehnder interferometer

Chao Yi Tai, Christos Grivas, James S. Wilkinson

Department of Optics and Photonics

Research output: Contribution to journal › Article › peer-review

14 Scopus citations

Abstract

The ultraviolet (UV) photosensitivity of Ta₂O₅ measured in a rib waveguide Mach-Zehnder interferometer (MZI) is reported. With a cumulative fluence of 72 J/cm² at a wavelength of 248 nm incident upon one arm through a 3-mm-long window, the MZI exhibits a phase shift of 8π radians at wavelength λ = 1.55 μm, corresponding to a saturated refractive index change of 2.1 × 10^-3. Real time measurements of the MZI output during exposure are given and the UV-induced refractive index change is found to be negative.

Original language	English
Pages (from-to)	1522-1524
Number of pages	3
Journal	IEEE Photonics Technology Letters
Volume	16
Issue number	6
DOIs	https://doi.org/10.1109/LPT.2004.826757
State	Published - Jun 2004

Keywords

Integrated optics
Mach-Zehnder interferometer (MZI)
Photosensitivity
Planar lightwave circuits

Access to Document

10.1109/LPT.2004.826757

Cite this

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title = "UV photosensitivity in a Ta2O5 rib waveguide Mach-Zehnder interferometer",

abstract = "The ultraviolet (UV) photosensitivity of Ta2O5 measured in a rib waveguide Mach-Zehnder interferometer (MZI) is reported. With a cumulative fluence of 72 J/cm2 at a wavelength of 248 nm incident upon one arm through a 3-mm-long window, the MZI exhibits a phase shift of 8π radians at wavelength λ = 1.55 μm, corresponding to a saturated refractive index change of 2.1 × 10-3. Real time measurements of the MZI output during exposure are given and the UV-induced refractive index change is found to be negative.",

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T1 - UV photosensitivity in a Ta2O5 rib waveguide Mach-Zehnder interferometer

AU - Tai, Chao Yi

AU - Grivas, Christos

AU - Wilkinson, James S.

PY - 2004/6

Y1 - 2004/6

N2 - The ultraviolet (UV) photosensitivity of Ta2O5 measured in a rib waveguide Mach-Zehnder interferometer (MZI) is reported. With a cumulative fluence of 72 J/cm2 at a wavelength of 248 nm incident upon one arm through a 3-mm-long window, the MZI exhibits a phase shift of 8π radians at wavelength λ = 1.55 μm, corresponding to a saturated refractive index change of 2.1 × 10-3. Real time measurements of the MZI output during exposure are given and the UV-induced refractive index change is found to be negative.

AB - The ultraviolet (UV) photosensitivity of Ta2O5 measured in a rib waveguide Mach-Zehnder interferometer (MZI) is reported. With a cumulative fluence of 72 J/cm2 at a wavelength of 248 nm incident upon one arm through a 3-mm-long window, the MZI exhibits a phase shift of 8π radians at wavelength λ = 1.55 μm, corresponding to a saturated refractive index change of 2.1 × 10-3. Real time measurements of the MZI output during exposure are given and the UV-induced refractive index change is found to be negative.

KW - Integrated optics

KW - Mach-Zehnder interferometer (MZI)

KW - Photosensitivity

KW - Planar lightwave circuits

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DO - 10.1109/LPT.2004.826757

M3 - 期刊論文

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SN - 1041-1135

VL - 16

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EP - 1524

JO - IEEE Photonics Technology Letters

JF - IEEE Photonics Technology Letters

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