Optical transceiver EMI detuning device
First Claim
Patent Images
1. An optical transceiver comprising:
- a transmitter having an electrical to optical converter with an electrical input and an optical output, said optical output coupling transmit optical energy to a first cylindrical housing, said cylindrical housing having an aperture for receiving a mating optical ferrule which receives said transmit optical energy;
a receiver having an optical to electrical converter with an optical input and an electrical output, said optical input coupling receive optical energy from a second cylindrical housing having an aperture for receiving a mating optical ferrule containing said receive optical energy;
an enclosure containing said transmitter and said receiver;
a conductive collar shield surrounding said first cylindrical housing and said second cylindrical housing and said optical to electrical converter and said electrical to optical converter;
a first shield extension disposed between said first cylindrical housing and said collar shield, and a second shield extension disposed between said second cylindrical housing and said collar shield.
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Abstract
A transceiver for the transmission and reception of high speed optical signals contains a detuning structure which reduces the gain for quarter wave radiation of Electro Magnetic Radiation (EMI). A conductive housing couples light energy from a source or a detector to an external fiber having a metallic ferrule. The conductive housing also is referenced to the chassis enclosure of the transceiver thereby attenuating the quarter wave radiator.
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Citations
18 Claims
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1. An optical transceiver comprising:
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a transmitter having an electrical to optical converter with an electrical input and an optical output, said optical output coupling transmit optical energy to a first cylindrical housing, said cylindrical housing having an aperture for receiving a mating optical ferrule which receives said transmit optical energy;
a receiver having an optical to electrical converter with an optical input and an electrical output, said optical input coupling receive optical energy from a second cylindrical housing having an aperture for receiving a mating optical ferrule containing said receive optical energy;
an enclosure containing said transmitter and said receiver;
a conductive collar shield surrounding said first cylindrical housing and said second cylindrical housing and said optical to electrical converter and said electrical to optical converter;
a first shield extension disposed between said first cylindrical housing and said collar shield, and a second shield extension disposed between said second cylindrical housing and said collar shield. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An optical transmitter comprising:
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a transmitter having an electrical to optical converter with an electrical input and an optical output, said optical output coupling transmit optical energy to a cylindrical housing, said cylindrical housing having an aperture for receiving a mating optical ferrule;
an enclosure containing said transmitter;
a conductive collar shield surrounding said cylindrical housing and said electrical to optical converter;
a shield extension disposed between said cylindrical housing and said collar shield. - View Dependent Claims (8, 9, 10, 11, 12)
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13. An optical receiver comprising:
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a receiver having an optical to electrical converter with an optical input and an electrical output, said optical input coupling optical energy from a cylindrical housing having an aperture for receiving a mating optical ferrule to said optical to electrical converter;
an enclosure containing said receiver;
a conductive collar shield surrounding said receiver cylindrical housing and said optical to electrical converter;
a shield extension disposed between said cylindrical housing and said collar shield. - View Dependent Claims (14, 15, 16, 17, 18)
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Specification