发明申请
- 专利标题： Optical module capable of transmitting optical signal in bi-directional with single fiber
- 专利标题（中）： 能够用单根光纤双向传输光信号的光模块
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申请号： US10933495申请日： 2004-09-03
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公开(公告)号： US20050084217A1公开(公告)日： 2005-04-21
- 发明人: Manabu Yoshimura , Yoshiki Kuhara , Hiromi Nakanishi
- 申请人： Manabu Yoshimura , Yoshiki Kuhara , Hiromi Nakanishi
- 优先权： JP2003-313858 20030905
- 主分类号： G02B6/293
- IPC分类号： G02B6/293 ; G02B6/34 ; G02B6/42 ; G02B7/00 ; G02B6/38 ; G02B6/36
摘要：
The present invention provides an optical module for light-transmitting a first optical signal with a first wavelength and light-receiving a second optical signal with a second wavelength in bidirectional. The optical module of the invention includes an optical fiber, a laser diode, a photodiode, an optical filter and a holder for securing the optical filter. The laser diode emits the first optical signal, while the photodiode receives the second optical signal. The filter reflects one of the first and second optical signals and transmits the other of first and second optical signals. The holder of the present invention includes first and second lens both built in the surface of the holder. The first lens faces the laser diode and optically couples the laser diode with the optical fiber, while the second lens faces the optical fiber. Since the first and second lenses are built in the surface of the holder, the optical alignment of the laser diode and the photodiode can be automatically carried out by mounting the laser diode and the photodiode on the surface of the holder.
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