发明申请
US20050276304A1 Optical semiconductor device module and bidirectional module 有权
光半导体器件模块和双向模块

Optical semiconductor device module and bidirectional module
摘要:
A semiconductor laser diode optically coupled to an optical fiber, is mounted on a stem. A cap having a light transmissive hole between the optical fiber and the semiconductor laser diode is fixed to the stem. A ball lens is fixed in the light transmissive hole. The ball lens has a refractive index of 1.9 or more and a diameter between 1.5 mm and 2.5 mm.
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