Share Email Print
cover

Proceedings Paper

25-GHz spacing 8-ch compact arrowhead arrayed-waveguide grating using v-bend waveguides
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

The novel compact arrowhead arrayed-waveguide grating (AWG) using v-bend waveguides in each arrayed waveguide is proposed and fabricated. The v-bend structure is useful to reduce bending area of a silica waveguide with low Δ (0.3%) to high Δ (0.8%) design. It is composed of curved single mode waveguides and a slab waveguide with an integrated elliptic metal mirror. The mirror structure in the v-bend waveguide is fabricated by the reactive ion etching of the deep trench with smooth and vertical side wall, and by the deposition of silver metal with chemical reaction. The proposed AWG with arrowhead shape has a footprint of only 1/10 of the conventional one with the same performance. The small footprint leads to low cost and to high-resolution because the small circuit is less subject to the fluctuation of the effective index of the substrate. In this paper, the 8-ch, 25 GHz spacing arrowhead AWG composed of the same v-bend structures in each arrayed waveguide in order to obtain the uniform propagation loss of the v-bend is fabricated with the effective index of 0.75 % silica and its property is reported. Its size of the slab and arrayed waveguide region is 1.3 mm × 15.5 mm and only 1/10 of the conventional type.

Paper Details

Date Published: 31 March 2005
PDF: 8 pages
Proc. SPIE 5728, Integrated Optics: Devices, Materials, and Technologies IX, (31 March 2005); doi: 10.1117/12.590194
Show Author Affiliations
Takanori Suzuki, Keio Univ. (Japan)
Kenichi Masuda, Keio Univ. (Japan)
Atsushi Tate, Keio Univ. (Japan)
Hiroyuki Tsuda, Keio Univ. (Japan)


Published in SPIE Proceedings Vol. 5728:
Integrated Optics: Devices, Materials, and Technologies IX
Yakov Sidorin; Christoph A. Waechter, Editor(s)

© SPIE. Terms of Use
Back to Top