The ADN2843 laser diode driver from Analog Devices Inc. provides dual-loop control of average power and extinction ratio, compensating for temperature variations and aging effects in the laser diode. This 10.7-Gb/s device operates on 3.3 V and is compatible with OC-192/SDH-64 and 10 Gigabit Ethernet modules. The ADN2843 is optimized for use with packages that integrate both a laser diode and a laser driver. It couples directly to the laser diode and reduces pattern-dependent jitter that occurs in standard AC-coupled designs. The device offers modulation and bias currents of up to 80 mA.