An optical signal module including a driver, the module comprising: a driver including: a differential pair which includes a first transistor configured to receive a first input signal and a second transistor configured to receive a second input signal, the first signal and the second signal being a differential input signal, the differential pair configured to supply a first drive signal and a second drive signal in response to the first input signal and the second input signal; a modulation current source (120; 228) providing a modulation current to the differential pair; one or more electrical termination elements (R1; R2) connected to the differential pair; a first switch, responsive to a first control signal, having a first terminal and a second terminal, the first terminal connected to at least the one or more termination elements; a charge storage device (140; 240) connected to the second terminal of the first switch and a supply voltage node; an optical signal module (108; 256) including an optical signal generator arranged between the supply voltage node and a bias current node, the optical signal generator receiving the first drive signal and a second drive signal to generate an optical signal representing the first input signal and the second input signal; and a second switch configured between the supply voltage node and the bias current node, the second switch, responsive to a second control signal, configured to establish a short between the supply voltage node and the bias current node, wherein the first control signal and second control signal are generated by a controller responsive to a burst on signal or a burst off signal, and wherein responsive to a burst on signal, the second control signal opens the second switch and thereafter the first control signal closes the first switch and wherein responsive to a burst off signal, the first control signal opens the first switch to thereby maintain charge on the charge storage device, and thereafter the second control signal closes the second switch. a differential pair which includes a first transistor configured to receive a first input signal and a second transistor configured to receive a second input signal, the first signal and the second signal being a differential input signal, the differential pair configured to supply a first drive signal and a second drive signal in response to the first input signal and the second input signal; a modulation current source (120; 228) providing a modulation current to the differential pair; one or more electrical termination elements (R1; R2) connected to the differential pair; a first switch, responsive to a first control signal, having a first terminal and a second terminal, the first terminal connected to at least the one or more termination elements; a charge storage device (140; 240) connected to the second terminal of the first switch and a supply voltage node; an optical signal module (108; 256) including an optical signal generator arranged between the supply voltage node and a bias current node, the optical signal generator receiving the first drive signal and a second drive signal to generate an optical signal representing the first input signal and the second input signal; and a second switch configured between the supply voltage node and the bias current node, the second switch, responsive to a second control signal, configured to establish a short between the supply voltage node and the bias current node, wherein the first control signal and second control signal are generated by a controller responsive to a burst on signal or a burst off signal, and wherein responsive to a burst on signal, the second control signal opens the second switch and thereafter the first control signal closes the first switch and wherein responsive to a burst off signal, the first control signal opens the first switch to thereby maintain charge on the charge storage device, and thereafter the second control signal closes the second switch.