发明授权
US5787215A Linear PD/LD module, linear PD/LED module, linear LD/PD module, linear
LED/PD module and linear PD module
失效
线性PD / LD模块,线性PD / LED模块,线性LD / PD模块,线性LED / PD模块和线性PD模块
- 专利标题: Linear PD/LD module, linear PD/LED module, linear LD/PD module, linear LED/PD module and linear PD module
- 专利标题(中): 线性PD / LD模块,线性PD / LED模块,线性LD / PD模块,线性LED / PD模块和线性PD模块
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申请号: US748623申请日: 1996-11-13
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公开(公告)号: US5787215A公开(公告)日: 1998-07-28
- 发明人: Yoshiki Kuhara , Naoyuki Yamabayashi , Yasuhiro Iguchi , Yasushi Fujimura , Hiromi Nakanishi
- 申请人: Yoshiki Kuhara , Naoyuki Yamabayashi , Yasuhiro Iguchi , Yasushi Fujimura , Hiromi Nakanishi
- 申请人地址: JPX Osaka-Fu
- 专利权人: Sumitomo Electric Industries, Ltd.
- 当前专利权人: Sumitomo Electric Industries, Ltd.
- 当前专利权人地址: JPX Osaka-Fu
- 优先权: JPX7-319705 19951113; JPX8-019350 19960109
- 主分类号: H01L31/12
- IPC分类号: H01L31/12 ; H01L31/167 ; G02B6/36 ; H01S3/18 ; H04J14/02
摘要:
WDMs have been used to separate a plurality of signals spatially by the difference of wavelengths in prior bidirectional multiwavelength optical communication network. For excluding WDMs, linear PD/LD modules adopt eigen-wavelength photodiodes sensing only the light of an eigen wavelength but allowing all the wavelengths longer than the eigen wavelength. An n-member PD/LD module aligns (n-1) eigen wavelength photodiodes, PD1, PD2, PD3, . . . , PDn-1 of .lambda.1, .lambda.2, .lambda.3, . . . ,.lambda.n-1 and an LD of .lambda. n which satisfy inequalities .lambda.1
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