Transceiver module and integrated circuit with dual eye openers
AssigneeFinisar Corporation
InventorsLewis B. Aronson, Rudy Hofmeister, Christopher Madden, Mark Farley, Dan Case, Tom Lenosky
Life of this patent
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Abstract
A transceiver module having integrated eye diagram opening functionality for reducing jitter is described. The transceiver module may include a transmitter eye opener and a receiver eye opener integrated in a single circuit. The transceiver module may also include serial control and various other integrated components. Other functionalities that may be integrated on the transceiver module include loopback modes, bypass features, bit error rate testing, and power down modes.
Claims20
An optical transceiver module comprising:
- a serial electrical interface with an electrical output port and an electrical input port;
- a receiver path comprising:
- an optical input port adapted to receive a first optical signal from external to the transceiver module;
- a receiver eye opener including a first port coupled to receive a first serial electrical data stream based on the first optical signals, the receiver eye opener being adapted to detect a data rate of the first serial electrical data stream and to resume and reshape the first serial electrical data stream based on the detected data rate;
- and
- the electrical output port of the serial electrical interface adapted to transmit the retimed and reshaped first serial electrical data stream to external to the transceiver module;
- and
- a transmit path comprising;
- a second serial electrical data stream received via the electrical input port from external to the transceiver module;
- a transmitter eye opener including a first port coupled to receive the second serial electrical data stream, the transmitter eye opener being adapted to retime and reshape the second serial electrical data stream;
- and
- a second optical signal transmitted external to the transceiver module via an optical output, the second optical signal based on the retimed and reshaped second serial electrical data stream.
An optical transceiver module, comprising:
- a serial electrical interface with an electrical output port and an electrical input port;
- a receive path comprising:
- an optical input port adapted to receive a first optical signal from external to the transceiver module;
- a receiver eye opener including a first port coupled to receive a first serial electrical data stream based on the first optical signal, being adapted to retime and reshape the first serial electrical data stream;
- and
- the electrical output port of the serial electrical interface adapted to transmit the retimed and reshaped first serial electrical data stream to external to the transceiver module;
- and
- a transmit path comprising:
- a second serial electrical data stream received via the electrical input port form external to the transceiver module;
- a transmitter eye opener including a first port coupled to receive the second serial electrical data stream, the transmitter eye opener being adapted to detect a data rate of the second serial electrical data stream and to retime and reshape the second serial electrical data stream based on the detected data rate;
- and
- a second optical signal transmitted external to the transceiver module via an optical output port, the second optical signal based on the retimed and reshaped second serial electrical data stream.
A method of ensuring signal integrity of a first optical signal, the method comprising:
- receiving the first optical signal from external to the optical transceiver module;
- detecting a data rate of a first serial electrical data stream representative of the first optical signal;
- retiming and reshaping a first serial electrical data stream based on the detected data rate;
- and
- transmitting the retimed and reshaped first serial electrical data stream to external to be transceiver module.
Dependencies are inferred from the claim text.