Modeling and design of GaAs traveling-wave electrooptic modulators based on capacitively loaded coplanar strips

被引：6

作者：

Cui, YS ^{[1
]}

Berini, P ^{[1
]}

机构：

[1] Univ Ottawa, Sch Informat Technol & Engn, Ottawa, ON K1N 6N5, Canada

来源：

JOURNAL OF LIGHTWAVE TECHNOLOGY | 2006年 / 24卷 / 01期

基金：

加拿大创新基金会;

关键词：

capacitively loaded coplanar strips; GaAs traveling-wave electrooptic modulator; slow-wave structure; velocity matched;

D O I：

10.1109/JLT.2005.859851

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：

GaAs traveling-wave electrooptic (EO) modulators based on capacitively loaded coplanar strips (CPSs) have been extensively modeled, and near-optimal designs are presented. The modulator operates in a push-pull mode, and the electrodes are coupled capacitively in series via the doped under layer. The best design reported herein has asymmetric CPSs 2 cm long and generated a figure of merit of about 9.36 GHz/V This figure of merit is an improvement by a factor of about 2.5 over the best design reported to date for this modulator architecture. Modulator bandwidths in the range of 40-70 GHz (3 dB electrical) are predicted for various designs; the corresponding optical bandwidths are in the range of 75-110 GHz (3 dB optical).

引用

页码：544 / 554

页数：11

共 18 条

[1] Broad-band reflection traveling-wave LiNbO3 modulator [J].

Burns, WK ;

Howerton, MM ;

Moeller, RP ;

Greenblatt, AS ;

McElhanon, RW .

IEEE PHOTONICS TECHNOLOGY LETTERS, 1998, 10 (06) :805-806

[2] Improved electrooptic modulator with ridge structure in X-cut LiNbO3 [J].

Chang, SJ ;

Tsai, CL ;

Lin, YB ;

Liu, JF ;

Wang, WS .

JOURNAL OF LIGHTWAVE TECHNOLOGY, 1999, 17 (05) :843-847

[3]

Collin R.E., 2001, Foundations for Microwave Engineering, V2nd ed.

[4]

CUI Y, 2004, THESIS U OTTAWA OTTA

[5] 40 GHZ, LOW HALF-WAVE VOLTAGE TILINBO3 INTENSITY MODULATOR [J].

GOPALAKRISHNAN, GK ;

BULMER, CH ;

BURNS, WK ;

MCELHANON, RW ;

GREENBLATT, AS .

ELECTRONICS LETTERS, 1992, 28 (09) :826-827

[6] InP-InGaAsP high-speed traveling-wave electroabsorption modulators with integrated termination resistors [J].

Irmscher, S ;

Lewén, R ;

Eriksson, U .

IEEE PHOTONICS TECHNOLOGY LETTERS, 2002, 14 (07) :923-925

[7] Ultrabroad-bandwidth electro-optic modulator based on a cascaded Bragg grating [J].

Khurgin, JB ;

Kang, JU ;

Ding, YJ .

OPTICS LETTERS, 2000, 25 (01) :70-72

[8]

Madabhushi R., 1996, OFC'96. Optical Fiber Communication. Vol.2. 1996 Technical Digest Series. Conference Edition (IEEE Cat. No.96CH35901), P206, DOI 10.1109/OFC.1996.908230

[9] Investigation of resonantly enhanced modulators on LiNbO3 using FEM and numerical optimization technique [J].

Nguyen, TG ;

Mitchell, A ;

Visagathilagar, YS .

JOURNAL OF LIGHTWAVE TECHNOLOGY, 2004, 22 (02) :526-533

[10] Millimeter-wave Ti:LiNbO3 optical modulators [J].

Noguchi, K ;

Mitomi, O ;

Miyazawa, H .

JOURNAL OF LIGHTWAVE TECHNOLOGY, 1998, 16 (04) :615-619

← 1 2 →