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An electrical and optical concurrent design methodology for enlarging the jitter margin of 25.8-Gb/s optical interconnects is proposed and evaluated. As the key for establishing this design methodology, a simple method for modeling characteristics of a laser diode (LD) (hereafter, "LD modeling method") is adopted. The LD modeling method calculates an optical eye diagram on the basis of measured...
This paper describes the design and experiment results of 25 Gbps, 4 channels optical transmitter which consist of a vertical-cavity surface emitting laser (VCSEL) driver with an asymmetric pre-emphasis circuit and an electrical receiver. To make data transfers faster in directly modulated a VCSEL-based optical communications, the driver circuit requires an asymmetric pre-emphasis signal to compensate...
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