| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an optical transmitter-receiver for suppressing crosstalking by reducing the ghost light incident onto a light receiving element out of the light from a light source. <P>SOLUTION: The optical transmitter-receiver includes: the light source 1 for emitting light whose polarization directions are roughly arranged in a prescribed direction; the light receiving element 4 for converting the incident light into electric signals; a transmission/reception optical system 7 for emitting light to an opposite apparatus and onto which the light from the opposite apparatus is made incident; a polarization separation means 3 for directing the light from the light source with the prescribed polarization direction to the transmission/reception optical system and directing the light with the polarization direction orthogonal to the prescribed direction from the opposite apparatus to the light receiving element, and a polarization element 9 placed between the light source and the polarization separation means. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
