INTEGRABLE SURFACE-EMITTING LASER-BASED OPTICAL SWITCHES AND LOGIC GATES FOR PARALLEL DIGITAL OPTICAL COMPUTING

被引:8
作者
CHENG, J
ZHOU, P
机构
[1] Center for High Technology Materials, University of New Mexico, Albuquerque, 87131, EECE Building
来源
APPLIED OPTICS | 1992年 / 31卷 / 26期
关键词
DIGITAL OPTICAL COMPUTING; OPTICAL LOGIC GATES; OPTICAL SWITCHING;
D O I
10.1364/AO.31.005592
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We describe the recent advances in a monolithic optoelectronic technology based on the integration of two-dimensional arrays of cascadable optical switches and optical logic gates consisting of vertical-cavity surface-emitting lasers (VCSEL's) and heterojunction phototransistors or photothyristors. Different combinations of these components can perform optical switching, logic, memory, and regeneration. Latching, nonlatching, and bistable switches with high optical gain and contrast are demonstrated by using a single GaAs-AlGaAs epilayer design along with single-stage Boolean optical logic functions: AND, OR, IDENTITY, INVERT, NAND, NOR, and XOR. As an application to parallel, digital arithmetic logic, we describe a simple, compact, two-chip binary adder, which uses optical symbolic substitution and two-dimensional VCSEL-PNPN logic gate arrays.
引用
收藏
页码:5592 / 5603
页数:12
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