Title :
Design of a 4-channel 10-Gb/s CMOS VCSEL driver array
Author :
Oh, W.S. ; Park, K.
Author_Institution :
Korea Electron. Technol. Inst., Seongnam
Abstract :
A 4-channel CMOS VCSEL driver array is implemented in 0.13-mum CMOS technology. The optical transmitter drives VCSEL array, operating up to 10-Gb/s with APC (5-20-mA) and AMC (5-15-mApp) loops to obtain constant and reliable optical output power. To enhance the bandwidth of the pre-amplifier, active feedback technique with negative impedance compensation (NIC) is exploited. A single channel VCSEL driver achieves 12-dB voltage gain, 10-Gb/s operations with 8.5-GHz bandwidth for 0.2-pF VCSEL capacitance and 50-mW power consumption for 1.8-V single supply.
Keywords :
CMOS integrated circuits; driver circuits; laser cavity resonators; laser feedback; optical design techniques; optical transmitters; semiconductor laser arrays; surface emitting lasers; telecommunication channels; 4-channel CMOS VCSEL driver array design; AMC; APC; active feedback technique; auto modulation control loop; auto power control loop; bandwidth 8.5 GHz; bit rate 10 Gbit/s; capacitance 0.2 pF; negative impedance compensation; optical transmitter; power 50 mW; preamplifier bandwidth; size 0.13 mum; vertical cavity surface emitting laser; voltage 1.8 V; Bandwidth; CMOS technology; Impedance; Negative feedback; Optical arrays; Optical feedback; Optical transmitters; Power generation; Vertical cavity surface emitting lasers; Voltage; Active feedback; CMOS; VCSEL driver;
Conference_Titel :
Optical Internet, 2008. COIN 2008. 7th International Conference on
Conference_Location :
Tokyo
Print_ISBN :
978-4-88552-230-7
Electronic_ISBN :
978-4-88552-229-1
