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2. 发明公开

EP0071589A1 Lensless spectrum analyzer 有权
标题翻译： Linsenloser Spektrumanalysator。
公开(公告)号：EP0071589A1
公开(公告)日：1983-02-09
申请号：EP82850087.6
申请日：1982-04-26
申请人： INSTITUTET FÖR OPTISK FORSKNING
发明人： Thylén, Lars , Stensland, Leif , Arvidsson, Gunnar
IPC分类号： G01R23/17 , G02F1/03 , G02B6/00
CPC分类号： G01R23/17 , G02B6/12004 , G02B6/124 , G02F1/2955
摘要： The present invention relates to a lensless spectrum analyser, preferably of integrated optical type, with a radiation source (1) connected to a waveguide (2) which is connected to an electro-optical deflector (3), exploiting Pockel's effect. The radiation from the deflector (3) is guided by the waveguide (2) on to a detection matrix (4). The electro-optical deflector (3) then consists of an electrode matrix (5) with the electrodes (6-11) arranged in or in the vicinity of an electro-optically active material (21). The electrodes (6-11) which are of different widths and are arranged at different distances from each other are arranged along a line (18) which is largely disposed at right angle to the incident radiation. By this means, the deflector acquires lens properties and can perform the desired Fourier transformation of the electric signal connected to the deflector (3). In the course of this transformation, the incident radiation is divided up into bundles of rays representing different Fourier components and focused along a focal line (20) along which the detection matrix (4) is arranged. Since the deflector possesses lens properties, it becomes possible to elaborate the entire device according to the invention in integrated form, enabling the device to be manufactured in its entirety by application of photolithographic technology.
摘要翻译：本发明涉及一种无透镜光谱分析仪，最好是集成光学类型，其中放射源（1）连接到利用普克尔效应连接到电光偏转器（3）的波导（2）上。来自偏转器（3）的辐射由波导（2）引导到检测矩阵（4）上。然后，电光偏转器（3）由布置在电光活性材料（21）中或附近的电极（6-11）的电极矩阵（5）组成。具有不同宽度并且彼此不同距离布置的电极（6-11）沿着与入射辐射成直角大部分设置的线（18）布置。通过这种方式，偏转器获得透镜特性并且可以执行与偏转器（3）连接的电信号的期望的傅里叶变换。在该变换过程中，入射辐射被分成代表不同傅立叶分量的光束，并沿着布置检测矩阵（4）的焦线（20）聚焦。由于偏转器具有透镜性质，因此可以以整体形式精细地制作本发明的整个装置，从而能够通过应用光刻技术整体地制造该装置。

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