Abstract
Tunable polymer wavelength filters are demonstrated using a silicon-nitride grating which gives high refractive index contrast with polymers. The polymer waveguides are defined using direct patterning of a liquid-state UV-curable polymer by proximate-contact lithography technique. The wavelength filter exhibits a narrow bandwidth of less than 1.0 nm and a transmission dip of more than -15 dB. The peak wavelength is shifted over 10 nm in the temperature range of 25-70 °C and the thermal tuning efficiency is -0.212 nm/°C.
| Original language | English |
|---|---|
| Pages (from-to) | 332-335 |
| Number of pages | 4 |
| Journal | Optics Communications |
| Volume | 266 |
| Issue number | 1 |
| DOIs | |
| State | Published - 2006.10.1 |
Keywords
- Gratings
- Polymeric wavelength filters
- Proximate-contact lithography
- Thermo-optical materials
- Tunable
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