Title :
A laser diode current driver with photodiode sense amplifier for optical disk drive
Author_Institution :
VTC Inc., Bloomington, MN, USA
Abstract :
A monolithic laser power amplifier is described. This IC drives a laser diode in a read/write optical disk system, accurately delivering up to 200 mA. The write pulses have less than 4-ns rise and fall times. Also included on the chip is a transimpedance amplifier which accepts the current from a laser power monitoring PIN photodiode and converts it to a voltage so that a servo system can maintain the correct read and write current levels. The IC is fabricated on a complementary bipolar process with a 6-GHz n-p-n f and a 1-GHz vertical p-n-p f
Keywords :
bipolar integrated circuits; driver circuits; laser accessories; linear integrated circuits; optical disc storage; p-i-n diodes; photodiodes; power amplifiers; semiconductor junction lasers; 1 GHz; 200 mA; 4 ns; 6 GHz; IC; complementary bipolar process; laser diode current driver; monolithic laser power amplifier; optical disk drive; photodiode sense amplifier; power monitoring PIN photodiode; read/write optical disk system; semiconductor lasers; servo system; transimpedance amplifier; Diode lasers; Driver circuits; Drives; Optical amplifiers; Photodiodes; Photonic integrated circuits; Power amplifiers; Power lasers; Pulse amplifiers; Stimulated emission;
Conference_Titel :
Bipolar Circuits and Technology Meeting, 1991., Proceedings of the 1991
Conference_Location :
Minneapolis, MN
Print_ISBN :
0-7803-0103-X
DOI :
10.1109/BIPOL.1991.160995
