Study of an ultrafast analog-to-digital conversion scheme based on diffractive optics

被引：27
|
作者：
Johansson, M [1 ]
Löfving, B
Hård, S
Thylén, L
Mokhtari, M
Westergren, U
Pala, C
机构：
[1] Chalmers, Dept Microelect ED, Photon Lab, S-41296 Gothenburg, Sweden
[2] Royal Inst Technol, Dept Elect, S-16440 Kista, Sweden
来源：
APPLIED OPTICS | 2000年 / 39卷 / 17期
关键词：
D O I：
10.1364/AO.39.002881
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A potentially ultrafast optical analog-to-digital (A/D) converter scheme is proposed and was partly studied experimentally. In the A/D converter scheme the input signal controls the wavelength of a diode laser, whose output beam is incident on a grating. The beam from the grating hits a diffractive optical element in an array. The wavelength determines which element is illuminated. Each element fans out a unique spot-pattern bit code to be read out in parallel by individual detectors. In the experiment all patterns but one from 64 array elements were read out correctly. (C) 2000 Optical Society of America. OCIS codes: 050.1970, 200.2610.
引用
收藏
页码：2881 / 2887
页数：7
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