| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an optical variable attenuator which is used in an optical communication field, and is compact and operated at higher speed than a conventional one, inexpensive and highly reliable. <P>SOLUTION: The optical variable attenuator which is arranged in an optical transmission line and changes the intensity of an input light and outputs the light, is characterized in that an optical deflector 15 which makes the optical axis of the output light different from that of the optical axis of the optical transmission line is used as a means which varies the intensity of the input light. <P>COPYRIGHT: (C)2003,JPO</p> |
