Monolithically integrated asymmetric graded and step-index couplers for microphotonic waveguides

被引：24

作者：

Delâge, A ^{[1
]}

Janz, S ^{[1
]}

Lamontagne, B ^{[1
]}

Bogdanov, A ^{[1
]}

Dalacu, D ^{[1
]}

Xu, DX ^{[1
]}

Yap, KP ^{[1
]}

机构：

[1] Natl Res Council Canada, Inst Microstruct Sci, Ottawa, ON K1A 0R6, Canada

来源：

OPTICS EXPRESS | 2006年 / 14卷 / 01期

关键词：

D O I：

10.1364/OPEX.14.000148

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A monolithically integrated asymmetric graded index (GRIN) or step-index (GRIN) mode converters for microphotonic waveguides are proposed and described. The design parameters and tolerances are calculated for amorphous silicon (a-Si) couplers integrated with silicon-on-insulator waveguides. The GRIN and step-index couplers operate over a wide wavelength range with low polarization dependence, and the lithographic resolution needed is only +/- 1 mu m. Finally, experimental results are presented for a single layer 3 mu m thick step-index a-Si coupler integrated on a 0.8 mu m thick SOI waveguide. The measured variation of coupling efficiency with coupler length is in agreement with theory, with an optimal coupling length of 15 mu m for this device. (c) 2005 Optical Society of America.

引用

页码：148 / 161

页数：14

共 14 条

[1] Ultracompact corner-mirrors and T-branches in silicon-on-insulator
Ahmad, RU
Pizzuto, F
Camarda, GS
Espinola, RL
Rao, H
Osgood, RM
[J]. IEEE PHOTONICS TECHNOLOGY LETTERS, 2002, 14 (01) : 65 - 67
[2] Nanotaper for compact mode conversion
Almeida, VR
Panepucci, RR
Lipson, M
[J]. OPTICS LETTERS, 2003, 28 (15) : 1302 - 1304
[3] Graded-index coupler for microphotonic SOI waveguides
Delâge, A
Janz, S
Xu, DX
Dalacu, D
Lamontagne, B
Bogdanov, A
[J]. APPLICATIONS OF PHOTONIC TECHNOLOGY, CLOSING THE GAP BETWEEN THEORY, DEVELOPMENT, AND APPLICATION, PT 1 AND 2, 2004, 5577 : 204 - 212
[4] Harmonic oscillation in a spatially finite array waveguide
Gordon, R
[J]. OPTICS LETTERS, 2004, 29 (23) : 2752 - 2754
[5] IIZUKA K, 1987, ENG OPTICS, pCH5
[6] KOGELNIK H, 1990, GUIDED WAVE OPTOELEC, P7
[7] Mode transformer for miniaturized optical circuits
Lee, KK
Lim, DR
Pan, D
Hoepfner, C
Oh, WY
Wada, K
Kimerling, LC
Yap, KP
Doan, MT
[J]. OPTICS LETTERS, 2005, 30 (05) : 498 - 500
[8] MANOLATOU C, 2002, PASSIVE COMPONENTS D, pCH6
[9] Dual grating-assisted directional coupling between fibers and thin semiconductor waveguides
Masanovic, GZ
Passaro, VMN
Reed, GT
[J]. IEEE PHOTONICS TECHNOLOGY LETTERS, 2003, 15 (10) : 1395 - 1397
[10] NGUYEN V, 2005, P 2 INT C GROUP 4 PH, P195

← 1 2 →