Ultralow loss ring resonators using 3.5% index-contrast Ge-doped silica waveguides

被引：16

作者：

Bourdon, G ^{[1
]}

Alibert, G ^{[1
]}

Béguin, A ^{[1
]}

Bellman, B ^{[1
]}

Guiot, E ^{[1
]}

机构：

[1] Corning SA, F-77210 Avon, France

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2003年 / 15卷 / 05期

关键词：

germanium; optical losses; optical strip waveguides; resonator filters; waveguide nebds; wavelength-division multiplexing;

D O I：

10.1109/LPT.2003.809925

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Ring resonators (RRs) with a round-trip loss below 0.1 dB and a maximum free-spectral range (FSR) of 62.7 GHz were successfully fabricated. Single-mode waveguides of essentially square cross sections (similar to2.6 x 2.8 mum(2)) were patterned through reactive ion etching on a core layer of high Ge content doped silica deposited using plasma-enhanced chemical vapor deposition; they received a silica overclad. A propagation loss of 0.085 dB/cm was recorded for these waveguides. We strongly believe that our technology makes it possible to fabricate equally ultralow-loss RRs of even smaller bending radius, reaching an FSR of 100 GHz, thus opening, the way to the design of filters for wavelength-division-multiplexing systems.

引用

页码：709 / 711

页数：3