PURPOSE: To make an optical integrated circuit to be applied easily to a neural network device by providing a means which makes input light to incident to an optical switching element from the outside and another means which makes the output light of the optical switching element to incident to the photoreceptor element of another device to each of a plurality of specific semiconductor optical devices.
CONSTITUTION: The semiconductor optical switching element S of each semicon ductor optical device U is connected with a semiconductor photoreceptor element R in parallel or series and with a required power source 4 and input light is made incident to the element S from the outside through an input light incident means. The output light of the element S is made incident to the semiconductor photoreceptor element R of another semiconductor optical device through an output light incident means. Then, the element R is set to a state where the element R has a low end-to-end resistance only. Accordingly, the element S can be turned off when, for example, the element R is connected with the ele ment S in parallel and the optical switching element S of the another semicon ductor optical device is on and emits its output light. Therefore, this optical integrated circuit can be applied easily to a neural network device.
NAKANO YOSHINORI
IKEDA MASAHIRO
KITAYAMA KENICHI
KAWAKAMI WATARU
| JPS6079774A | 1985-05-07 | |||
| JPH0251713A | 1990-02-21 | |||
| JPS60260178A | 1985-12-23 |