Abstract
We report on non-lithographic laser direct writing fabrication of optical waveguides by using a 4′-hydroxy-4-nitroazobene dye-functionalized polymer film. The polymer film reveals permanent change of refractive index at high laser illumination intensity. A focused continuous wave low power green laser beam at 532 nm wavelength is used to directly write waveguide structures on the polymer film. The magnitude of refractive index increase at film surface is about 0.006. One-step laser writing results in graded index waveguides in film depth direction under ambient conditions without pre- and post-processing. As a by-product, the laser writing also results in a very small air valley at the boundary between the laser written and non-written regions which may contribute in part although minimal to the waveguide lateral confinement and can be used for visual observation of waveguide patterns. The fabricated waveguide is found to be stable and easily reproducible.
| Original language | English |
|---|---|
| Pages (from-to) | 94-98 |
| Number of pages | 5 |
| Journal | Optics Communications |
| Volume | 273 |
| Issue number | 1 |
| DOIs | |
| State | Published - May 1 2007 |
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Keywords
- Azobenzene
- Non-lithographic fabrication
- Polymer
- Waveguide
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
Cite this
An azobenzene functionalized polymer for laser direct writing waveguide fabrication. / Liu, Zhiqiang; Srisanit, Namkhun; Ke, Xianjun; Wu, Pengfei; Song, Sangyup; Yang, Jame J.; Wang, Michael Renxun.
In: Optics Communications, Vol. 273, No. 1, 01.05.2007, p. 94-98.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - An azobenzene functionalized polymer for laser direct writing waveguide fabrication
AU - Liu, Zhiqiang
AU - Srisanit, Namkhun
AU - Ke, Xianjun
AU - Wu, Pengfei
AU - Song, Sangyup
AU - Yang, Jame J.
AU - Wang, Michael Renxun
PY - 2007/5/1
Y1 - 2007/5/1
N2 - We report on non-lithographic laser direct writing fabrication of optical waveguides by using a 4′-hydroxy-4-nitroazobene dye-functionalized polymer film. The polymer film reveals permanent change of refractive index at high laser illumination intensity. A focused continuous wave low power green laser beam at 532 nm wavelength is used to directly write waveguide structures on the polymer film. The magnitude of refractive index increase at film surface is about 0.006. One-step laser writing results in graded index waveguides in film depth direction under ambient conditions without pre- and post-processing. As a by-product, the laser writing also results in a very small air valley at the boundary between the laser written and non-written regions which may contribute in part although minimal to the waveguide lateral confinement and can be used for visual observation of waveguide patterns. The fabricated waveguide is found to be stable and easily reproducible.
AB - We report on non-lithographic laser direct writing fabrication of optical waveguides by using a 4′-hydroxy-4-nitroazobene dye-functionalized polymer film. The polymer film reveals permanent change of refractive index at high laser illumination intensity. A focused continuous wave low power green laser beam at 532 nm wavelength is used to directly write waveguide structures on the polymer film. The magnitude of refractive index increase at film surface is about 0.006. One-step laser writing results in graded index waveguides in film depth direction under ambient conditions without pre- and post-processing. As a by-product, the laser writing also results in a very small air valley at the boundary between the laser written and non-written regions which may contribute in part although minimal to the waveguide lateral confinement and can be used for visual observation of waveguide patterns. The fabricated waveguide is found to be stable and easily reproducible.
KW - Azobenzene
KW - Non-lithographic fabrication
KW - Polymer
KW - Waveguide
UR - http://www.scopus.com/inward/record.url?scp=33847657423&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33847657423&partnerID=8YFLogxK
U2 - 10.1016/j.optcom.2006.12.019
DO - 10.1016/j.optcom.2006.12.019
M3 - Article
AN - SCOPUS:33847657423
VL - 273
SP - 94
EP - 98
JO - Optics Communications
JF - Optics Communications
SN - 0030-4018
IS - 1
ER -