| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To suppress output variation and also to prevent a connection part for another optical member from becoming unstable in strength even when a light guide member having an optical fiber fixed to a holding member with an adhesive is connected to another optical member such as an optical fiber to perform optical transmission. <P>SOLUTION: Four optical fibers 30 of an integrating function fiber bundle part 3 are arrayed in a desired pattern in a ferrule 30a and fixed with an adhesive 33. A recess formed by removing the adhesive 33 by a predetermined distance (d) from a light projection end 32 to the inner side is filled with an adhesive 35. Consequently, return light from an optical fiber 40 is scattered to exit to the outside, so the adhesive 33 is prevented from deteriorating. Consequently, scattering due to deterioration of the adhesive can be prevented to prevent large output variation of laser light. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
