Light-propagation characteristics of Y-branch defect waveguides in AlGaAs-based air-bridge-type two-dimensional photonic crystal slabs

被引：50

作者：

Sugimoto, Y ^{[1
]}

Ikeda, N

Carlsson, N

Asakawa, K

Kawai, N

Inoue, K

机构：

[1] Femtosecond Technol Res Assoc, Tsukuba, Ibaraki 3002635, Japan

[2] Hokkaido Univ, Res Inst Elect Sci, Sapporo, Hokkaido 0600821, Japan

来源：

OPTICS LETTERS | 2002年 / 27卷 / 06期

关键词：

D O I：

10.1364/OL.27.000388

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Y-branch defect waveguides (DWGs) in an AlGaAs-based air-bridge-type two-dimensional (2D) photonic crystal (PC) slab were fabricated, and the resulting optical transmission spectra were measured. Optical beam propagation along the waveguide was successfully observed in vidicon IR images. The measured transmission spectra at the two output ports in the Y-branch DWG were remarkably similar in shape and magnitude. From comparison between the measured and calculated transmission spectra, the observed optical beam was identified as the guided mode based on the Y-branch DWG in the 2D PC slab. The results suggest that the Y-branch DWG used in the experiment has the potential to function as an ultrasmall 3-dB beam splitter with good performance. (C) 2002 Optical Society of America.

引用

页码：388 / 390

页数：3

共 12 条

[1] Observation of light propagation in photonic crystal optical waveguides with bends [J].

Baba, T ;

Fukaya, N ;

Yonekura, J .

ELECTRONICS LETTERS, 1999, 35 (08) :654-655

[2] Quantitative analysis of bending efficiency in photonic-crystal waveguide bends at λ=1.55 μm wavelengths [J].

Chow, E ;

Lin, SY ;

Wendt, JR ;

Johnson, SG ;

Joannopoulos, JD .

OPTICS LETTERS, 2001, 26 (05) :286-288

[3] Photonic crystal tapers for ultracompact mode conversion [J].

Happ, TD ;

Kamp, M ;

Forchel, A .

OPTICS LETTERS, 2001, 26 (14) :1102-1104

[4] Block-iterative frequency-domain methods for Maxwell's equations in a planewave basis [J].

Johnson, SG ;

Joannopoulos, JD .

OPTICS EXPRESS, 2001, 8 (03) :173-190

[5] Guided modes in photonic crystal slabs [J].

Johnson, SG ;

Fan, SH ;

Villeneuve, PR ;

Joannopoulos, JD ;

Kolodziejski, LA .

PHYSICAL REVIEW B, 1999, 60 (08) :5751-5758

[6]

Kawai N, 2001, PHYS REV LETT, V86, P2289, DOI 10.1103/PhysRevLett86.2289

[7] Demonstration of highly efficient waveguiding in a photonic crystal slab at the 1.5-μm wavelength [J].

Lin, SY ;

Chow, E ;

Johnson, SG ;

Joannopoulos, JD .

OPTICS LETTERS, 2000, 25 (17) :1297-1299

[8] Waveguiding in planar photonic crystals [J].

Loncar, M ;

Nedeljkovic, D ;

Doll, T ;

Vuckovic, J ;

Scherer, A ;

Pearsall, TP .

APPLIED PHYSICS LETTERS, 2000, 77 (13) :1937-1939

[9] Low-loss channel waveguides with two-dimensional photonic crystal boundaries [J].

Smith, CJM ;

Benisty, H ;

Olivier, S ;

Rattier, M ;

Weisbuch, C ;

Krauss, TF ;

De La Rue, RM ;

Houdré, R ;

Oesterle, U .

APPLIED PHYSICS LETTERS, 2000, 77 (18) :2813-2815

[10] Theoretical and experimental investigation of straight defect waveguides in AlGaAs-based air-bridge-type two-dimensional photonic crystal slabs [J].

Sugimoto, Y ;

Ikeda, N ;

Carlsson, N ;

Asakawa, K ;

Kawai, N ;

Inoue, K .

APPLIED PHYSICS LETTERS, 2001, 79 (26) :4286-4288

← 1 2 →