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Practical use of transmission type semiconductor spatial light modulator panel

透射型半导体空间光调制器面板的实用化

基本信息

批准号：
18560033
负责人：
KUWAMURA Yuji
金额：
$ 2.42万
依托单位：
Kanazawa University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2006
资助国家：
日本
起止时间：
2006 至 2007
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-18560033/
关键词：
Optical modulator Smart pixel Panel-type optical modulator Parallel optical information processing Element for optical computer Franz-Keldvsh effect Light control Optic device フランツ・ケルディッシュ効果光変調パネル

项目摘要

Establishment of optical computing systems is expected for further development of optoelectronics. Spatial light modulation panels are going to be key devices in these systems. We have proposed the semiconductor-based spatial light modulation-panel of the optical transmission type with the feature such as the high-speed operation, the high extinction ratio and the large-scale integration. In this research between 2006 and 2007 years, the targets such as 1) the speed-up of the modulation pixel, 2) the decrease of power consumption, 3) the decrease of the insertion loss, 4) achievement of optical operation with light input signal and 5) Achievement of light modulator panel and making to the large-scale integration of pixels (1000 x 1000) were researched and the following results were achieved.1. Speed-up: The capacity of the pixel was decreased by miniaturizing the size of the pixel to 60 u m^2 corner level, and operation speed was able to be speed up to 120MHz.2. Economizing electric power: The densities of impurities in semiconductor pixel structure were optimized. As a result, the power consumption of the pixel has decreased to past 1/10 and become 0.1mW.3. the decrease of the insertion loss: The value of the insertion loss was able to be reduced up to 4dB by decreasing the absorption loss in this device with the AlGaAs material. (Insertion loss 10dB of element in the past)4. Achievement of optical operation with light signal: The hetero bipolar phototransistor and the above-mentioned modulation pixel were integrated, and an optical reversing operation to control optical output intensity by the optical input signal achieved.5. Achievement of light modulator panel: 6×7 light modulator panel was made, and the optical output-power of the character image was confirmed. Though the integration of 1000 X 1000 was not able to be achieved.

光计算系统的建立是光电子学进一步发展的必然要求。空间光调制面板将成为这些系统中的关键器件。提出了一种具有高速工作、高消光比和大规模集成等特点的光传输型空间光调制面板。在2006年和2007年之间的这项研究中，诸如1）调制像素的速度提高，2）功耗降低，3）插入损耗降低，4）利用光输入信号实现光学操作，以及5）实现光调制器面板并实现像素的大规模集成（1000 × 1000）进行了研究，并得出以下结果.加速：通过将像素尺寸减小到60 μ m^2的角点水平，降低了像素的容量，运算速度可以提高到120 MHz.节省电力：优化半导体像素结构中的杂质浓度。结果，像素的功耗已经降低到过去的1/10，变为0.1mW。插入损耗的降低：通过降低具有AlGaAs材料的该器件中的吸收损耗，插入损耗的值能够降低高达4dB。（过去元件的插入损耗为10 dB）4.利用光信号实现光操作：将异质双极型光电晶体管与上述调制像素集成，并利用光输入信号实现光反转操作，以控制光输出强度.光调制器面板的实现：制作了6×7光调制器面板，并确定了字符图像的光输出功率。虽然1000 X 1000的集成度无法实现。