Abstract
Long-period waveguide grating (LPWG) was demonstrated in polymeric waveguide fabricated on SiO2-Si substrate using standard cleanroom fabrication processes: ultraviolet photolithography and reactive ion etching processes. Experimental results confirm that the relationship between the transmission peak wavelength and the grating period is linear. The LPWG exhibits a maximum attenuation of -18 dB, a minimum 3-dB bandwidth of 6 nm, and the grating length can be as short as 1 cm. The temperature characteristic dλ/dT of the LPWG was also investigated, and is found to be similar to that of long-period fiber grating.
| Original language | English |
|---|---|
| Pages (from-to) | 721-723 |
| Number of pages | 3 |
| Journal | IEEE Photonics Technology Letters |
| Volume | 15 |
| Issue number | 5 |
| DOIs | |
| State | Published - May 2003 |
| Externally published | Yes |
Keywords
- Long-period gratings (LPGs)
- Optical waveguides
- Polymeric waveguides
- Waveguide gratings
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