| 摘要 |
PROBLEM TO BE SOLVED: To provide an SOA array optical module using an lens array as a semiconductor optical amplification type gate switch that generates no coupling loss. SOLUTION: A beam is emitted its central axis 47 slanted by 22.3 degrees with respect to the perpendicular line 46 of the end face of an SOA array 37 from the waveguides 36 in the respective SOA on the output side of the SOA array 37 provided with 8-channel SOA waveguide 36 (the same as the input side). First and second lens arrays 39 and 43 are arranged in the SOA array 37 so that the central axis 47 of the beam emitted obliquely with an angle of 22.3 degrees from the SOA array 37 may be coincided with the optical axis of the lens convex 38 of the respective channels of the first lens array 39 and that of the lens convex 42 of the respective channels of the second lens array 43. A step is provided on the opposite sides of the convexes 38 and 42 of the first and second lens arrays 39 and 43 so that it may be nearly vertical to the central axis 47 of the incident beam of the SOA waveguide 36. COPYRIGHT: (C)2009,JPO&INPIT
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