Optical waveguides – With disengagable mechanical connector – Optical fiber to a nonfiber optical device connector
Reexamination Certificate
2005-02-22
2005-02-22
Sanghavi, Hemang (Department: 2874)
Optical waveguides
With disengagable mechanical connector
Optical fiber to a nonfiber optical device connector
C385S093000, C385S094000
Reexamination Certificate
active
06857792
ABSTRACT:
A duplex light transceiver module comprises a body having a light receiving module, a light transmitting module, and an optical fiber adaptor. The light emitting module has a laser diode chip and a metal header bearing the laser diode chip. A metal cap of the duplex transceiver module is combined with a round cylindrical focusing element which is installed ahead a light emitting end of the laser diode chip. One end of the cylindrical focusing element is formed with a ramp. A wavelength-division medium is evaporation-coated upon the ramp of the wavelength-division medium. The wavelength-division medium has different permeability so that light at one side facing the optical fiber adaptor will reflect light totally and light at one side facing the optical transmitting module will pass through the wavelength-division medium to be received by the light receiving module.
REFERENCES:
patent: 5621573 (1997-04-01), Lewis et al.
patent: 5796899 (1998-08-01), Butrie et al.
Sanghavi Hemang
Wong Eric
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