Notice of Violation of IEEE Publication Principles0.155-2.5Gbps SiGe BiCMOS Burst-Mode Laser Driver Using a Digital Implementation of the Automatic Power Control Loop

Abstract

A multi-standard laser driver for G-PON/E-PON applications supporting data rates up to 2.5 Gbps was realized in a 0.2 mum SiGe BiCMOS technology. A fast switching bias current generator that handles minimum burst on/off times of 576/96 ns was achieved by building a scaled-down replica signal path. A low supply voltage operation was ensured using differential switches with resistor tail and a common-mode loop that sets the modulation dependent driving voltage swing and tail current values. A digital automatic power control loop was implemented to maintain a constant average optical power over temperature corners and transmitter lifetime, while allowing long burst-off times. The driver specifications include: 10 to 80 mA modulation current range, 1 to 80 mA bias current range, 155 Mbps to 2.5 Gbps data rate, <40 ps rise and fall times, <17 psnp deterministic jitter, 30 mA current from a 3 to 3.6 V supply and 2.5 times 2.7 mm2 die area.