Abstract: Disclosed is an optical transceiver. The optical transceiver includes a decoder for decoding an 8B10B line-coded signal, a data mapper for separating the decoded signal into block units and securing extra memory capacity by mapping a data code and a block information code onto each of the separated blocks, and an FEC encoding unit for creating Forward Error Correction (FEC) data and mapping the FEC data onto the extra memory capacity.

Abstract: Disclosed is an optical transceiver which includes an optical transmitter converting a first electrical signal into a first optical signal, an optical receiver converting a second optical signal into a second electrical signal, and a processing unit operatively coupled to the optical transmitter and the optical receiver. The processing unit is configured to obtain first wavelength information of the first optical signal and second wavelength information of the second optical signal and compare the first wavelength information and the second wavelength information to control a wavelength separation interval between the first optical signal and the second optical signal.

Abstract: Disclosed is an optical transceiver. The optical transceiver includes a decoder for decoding an 8B10B line-coded signal; a data mapper for separating the decoded signal into block units and securing extra memory capacity by mapping a data code and a block information code onto each of the separated blocks; and an FEC encoding unit for creating a Forward Error Correction (FEC) data and mapping the FEC data onto the extra memory capacity.

Abstract: Disclosed is an optical transceiver. The optical transceiver includes a decoder for decoding an 8B10B line-coded signal, a data mapper for separating the decoded signal into block units and securing extra memory capacity by mapping a data code and a block information code onto each of the separated blocks, and an FEC encoding unit for creating Forward Error Correction (FEC) data and mapping the FEC data onto the extra memory capacity.

Abstract: Disclosed is an optical transceiver which includes an optical transmitter converting a first electrical signal into a first optical signal, an optical receiver converting a second optical signal into a second electrical signal, and a processing unit operatively coupled to the optical transmitter and the optical receiver. The processing unit is configured to obtain first wavelength information of the first optical signal and second wavelength information of the second optical signal and compare the first wavelength information and the second wavelength information to control a wavelength separation interval between the first optical signal and the second optical signal.

Abstract: Disclosed is an optical transceiver. The optical transceiver that accesses each port of a network device includes: a recognition unit recognizing an optical transceiver that accesses another port of the network device; a message exchange unit exchanging a message with the optical transceiver that accesses another port; a time stamping unit recording time stamps for an input time and an output time of the message in the message; and a synchronization control unit performing time synchronization for a master optical transceiver by calculating an offset time and a network delay time by using the time stamps recorded in the exchanged message.

Abstract: Disclosed is an optical transceiver. The optical transceiver includes: a receiving unit receiving optical signal data from the outside; a photoelectric conversion unit performing interconversion of the optical signal data and electric signal data; a data classifying unit classifying the received data according to a predetermined condition; a control unit determining replication of data or not and a transfer direction of the data according to a classification result by the data classifying unit; and a transmitting unit transmitting the data replicated by the control unit to an external system.

Abstract: Disclosed is an optical transceiver which includes an optical transmitter converting a first electrical signal into a first optical signal, an optical receiver converting a second optical signal into a second electrical signal, and a processing unit operatively coupled to the optical transmitter and the optical receiver. The processing unit is configured to obtain first wavelength information of the first optical signal and second wavelength information of the second optical signal and compare the first wavelength information and the second wavelength information to control a wavelength separation interval between the first optical signal and the second optical signal.

Abstract: Disclosed is an optical transceiver. The optical transceiver includes a decoder for decoding an 8B10B line-coded signal; a data mapper for separating the decoded signal into block units and securing extra memory capacity by mapping a data code and a block information code onto each of the separated blocks; and an FEC encoding unit for creating a Forward Error Correction (FEC) data and mapping the FEC data onto the extra memory capacity.

Abstract: A distributed feedback laser comprising a guide layer is disclosed and includes a plurality of waveguides connected in a stepped multi-branch structure, the guide layer serving as a transmission medium for light having a predetermined wavelength, and an active layer, formed on the guide layer, for oscillating light, wherein light is branched according to a predetermined ratio while proceeding from a higher waveguide to a lower waveguide within the guide layer.

Abstract: A distributed feedback laser comprising a guide layer is disclosed and includes a plurality of waveguides connected in a stepped multi-branch structure, the guide layer serving as a transmission medium for light having a predetermined wavelength, and an active layer, formed on the guide layer, for oscillating light, wherein light is branched according to a predetermined ratio while proceeding from a higher waveguide to a lower waveguide within the guide layer.