Optical communication system
First Claim
1. A full duplex optical communication system, comprising a first and a second optical transceiver units connected with each other by means of a single-core optical fiber,said first optical transceiver unit including:
- a first light emitting element for emitting transmission light;
a first light receiving element for receiving signal light; and
first guiding means for guiding said transmission light from said first light emitting element to said single-core optical fiber and for guiding received signal light from said single-core optical fiber to said first light receiving element, andsaid second optical transceiver unit including;
a second light emitting element for emitting transmission light;
a second light receiving element for receiving signal light; and
second guiding means for guiding said transmission light from said second light emitting element to said single-core optical fiber and for guiding received signal light from said single-core optical fiber to said second light receiving element,said optical communication system further comprising;
means for reducing optical crosstalk component relatively, wherein said optical crosstalk component being at least one of the optical crosstalk component originating from said first light emitting element and contained in said signal light received by said first light receiving element and the optical crosstalk component originating from said second light emitting element and contained in said signal light received by said second light receiving element, by adjusting at least one of the amounts of transmission light emitted from said first and second light emitting elements to said single-core optical fiber, andwherein said first and second light emitting elements emit the transmission light having different spectral width in wavelength.
1 Assignment
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Accused Products
Abstract
An optical communication system suitable for full duplex optical communication between a first and a second optical transceiver units. connected with each other by a single-core optical fiber. The first and second transceiver units may have different types of light emitting elements emitting light having different loss rates in the single-core optical fiber. The system enables stable full duplex communication without setting up large scale or costly transmission units by relatively reducing the optical crosstalk involved. The first optical transceiver unit provides transmission light to be coupled with the single-core optical fiber with the intensity in the range of TAmin–TAmax. The amount of light emitted from the light emitting element of the optical transceiver unit to be coupled with the single-core optical fiber is in the range TBmin–TBmax, which amount may be adjusted by a light emission adjusting unit provided in the optical transceiver unit.
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Citations
10 Claims
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1. A full duplex optical communication system, comprising a first and a second optical transceiver units connected with each other by means of a single-core optical fiber,
said first optical transceiver unit including: -
a first light emitting element for emitting transmission light; a first light receiving element for receiving signal light; and first guiding means for guiding said transmission light from said first light emitting element to said single-core optical fiber and for guiding received signal light from said single-core optical fiber to said first light receiving element, and said second optical transceiver unit including; a second light emitting element for emitting transmission light; a second light receiving element for receiving signal light; and second guiding means for guiding said transmission light from said second light emitting element to said single-core optical fiber and for guiding received signal light from said single-core optical fiber to said second light receiving element, said optical communication system further comprising; means for reducing optical crosstalk component relatively, wherein said optical crosstalk component being at least one of the optical crosstalk component originating from said first light emitting element and contained in said signal light received by said first light receiving element and the optical crosstalk component originating from said second light emitting element and contained in said signal light received by said second light receiving element, by adjusting at least one of the amounts of transmission light emitted from said first and second light emitting elements to said single-core optical fiber, and wherein said first and second light emitting elements emit the transmission light having different spectral width in wavelength. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification