GAAS/GAALAS MULTIQUANTUM WELL WAVE-GUIDES FOR ALL-OPTICAL SWITCHING AT 1.55-MU-M

被引：10
|
作者：
TSANG, HK
GRANT, RS
PENTY, RV
WHITE, IH
SOOLE, JBD
COLAS, E
LEBLANC, HP
ANDREADAKIS, NC
KIM, MS
SIBBETT, W
机构：
[1] UNIV ST ANDREWS,DEPT PHYS,ST ANDREWS KY16 9SS,SCOTLAND
[2] BELLCORE,RED BANK,NJ 07701
[3] KOREA ADV INST SCI & TECHNOL,SEOUL,SOUTH KOREA
来源：
ELECTRONICS LETTERS | 1991年 / 27卷 / 22期
关键词：
SEMICONDUCTOR DEVICES AND MATERIALS; WAVE-GUIDES; OPTICAL SWITCHING;
D O I：
10.1049/el:19911235
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：
The first measurements of selfphase modulation and nonlinear absorption in a GaAs/GaAlAs multiquantum well (MQW) waveguide near the half-bandgap resonance are reported. An intensity-dependent refractive index coefficient n2 of 9 x 10(-14) cm2/W and a two-photon absorption coefficient of 0.15 cm/GW at 1.55-mu-m wavelength for TM light were obtained. This corresponds to an intensity-independent figure of merit of 24rad phase change in one nonlinear absorption length, high enough to allow the implementation of subpicosecond all-optical switches at 1.55-mu-m wavelength.
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页码：1993 / 1995
页数：3
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