论文信息 - A CMOS laser driver with independently adjustable DC and modulation currents for data rates up to 2.5 Gb/s

A CMOS laser driver with independently adjustable DC and modulation currents for data rates up to 2.5 Gb/s

A CMOS laser diode driver (LDD) has been designed and tested, which offers the capability of independent DC and modulation current adjustments. The DC component used to pre-bias the laser diode is adjustable at a range of 0-40 mA. The modulation current can also be adjusted within a range of 0-30 mA. According to experimental results it can efficiently accommodate data rates up to 2.5 Gb/s while maintaining the full range of DC pre-bias component. Special issues regarding performance degradation have been addressed during circuit design which led to at least 25% performance enhancement compared to a conventional solution. The circuit has been fabricated in AMS 0.8 /spl mu/m CMOS process.

Nikos Haralabidis | Georgios Halkias

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