Design of programmable near infrared cold light source

Author

Wang, Rui ; Qingbo Fu ; Suo, Hui ; Zhao, Chun ; Wang, Biao

Author_Institution

State Key Lab. on Integrated Optoelectron., Jilin Univ., Changchun, China

Volume

2

fYear

2011

fDate

29-31 July 2011

Abstract

In the near infrared spectroscopy, detector of Charge-coupled Device requires very high stability for light source. We design the cold light source in the measurement of near infrared spectroscopy. Cold light source consists of high-power op amp OPA549 high current constant current source and proportion integral differential (PID) control algorithm. As is shown in the experimental results, the method is better, the overshoot is very small, the stability is excellent in the process of soft-start. While light intensity was able to meet the requirements of near-infrared instruments to measure.

Keywords

charge-coupled devices; constant current sources; infrared detectors; infrared spectroscopy; light sources; operational amplifiers; optical control; optical design techniques; three-term control; PID control; charge-coupled device; high current constant current source; high-power operational amplifier; infrared detector; near infrared spectroscopy; programmable near infrared cold light source; proportion integral differential control algorithm; while light intensity; Laser theory; Laser transitions; Measurement by laser beam; Regulators; Silicon; Voltage control; Cold light source; Constant current source; Halogen; Near infrared; Soft-start;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics and Optoelectronics (ICEOE), 2011 International Conference on

Conference_Location

Dalian

Print_ISBN

978-1-61284-275-2

Type

conf

DOI

10.1109/ICEOE.2011.6013196

Filename

6013196