Fiber type optical module
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United States of America Patent
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Dec 27, 2005
Grant Date -
Feb 12, 2004
app pub date -
May 23, 2003
filing date -
May 23, 2002
priority date (Note) -
Expired
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Abstract
The present invention relates a fiber optical module. A first filter 5 transmits a light with a first predetermined wavelength (λA ), and reflects lights with a second predetermined wavelength (λB) and a third predetermined wavelength (λC). A second filter 6 transmits the light with wavelength λB and reflects the light with wavelength λC. A first light-receiving device 2 receives the light with wavelength λA, and a second light-receiving device 3 receives the light with wavelength λB, A light-emitting device 4 emits the light with wavelength λC. A first optical fiber 1a leads the lights with wavelengths λA and λB to the first filter 5. A second optical fiber 1b leads the light with wavelength λB reflected by the first filter 1a. A third optical fiber 1c leads the light with wavelength λC emitted by the light-emitting device 4 to the second filter 6.
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