A laser diode current driver with photodiode sense amplifier for optical disk drive

Author

Price, John J.

Author_Institution

VTC Inc., Bloomington, MN, USA

fYear

1991

fDate

9-10 Sep 1991

Firstpage

241

Lastpage

244

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Bipolar Circuits and Technology Meeting, 1991., Proceedings of the 1991

Conference_Location

Minneapolis, MN

Print_ISBN

0-7803-0103-X

Type

conf

DOI

10.1109/BIPOL.1991.160995

Filename

160995