Design of long-period waveguide grating filter by control of waveguide cladding profile
Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review
Author(s)
Related Research Unit(s)
Detail(s)
| Original language | English |
|---|---|
| Pages (from-to) | 3540-3546 |
| Journal / Publication | Journal of Lightwave Technology |
| Volume | 24 |
| Issue number | 9 |
| Publication status | Published - Sep 2006 |
Link(s)
Abstract
A simple and convenient method of designing long-period waveguide grating filters to generate sophisticated transmission characteristics is described. The method is based on controlling the index or thickness profile of the waveguide cladding along a uniform grating and thus avoids the use of specially designed grating masks. The flexibility of the method with the design of phase-shifted gratings, chirped gratings, and broadband filters is demonstrated. It was found that the index and thickness changes required for a significant change in the transmission characteristics of a grating are within the ranges that can be achieved easily with ultraviolet irradiation on photosensitive films. The method described in this paper provides a powerful approach of realizing various kinds of grating filters. © 2006 IEEE.
Research Area(s)
- Long-period gratings, Optical polymer waveguides, Optical waveguide filters
Citation Format(s)
Design of long-period waveguide grating filter by control of waveguide cladding profile. / Liu, Qing; Chiang, Kin Seng.
In: Journal of Lightwave Technology, Vol. 24, No. 9, 09.2006, p. 3540-3546.Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review
