Novel LED´s driver circuit for broadband short-range optical fiber communication systems

Author

Binh, P.-H. ; Trong, V.D. ; Anh, C.T. ; Renucci, P. ; Marie, X. ; Truong, C.T. ; Pham, A.T.

Author_Institution

Inst. of Mater. Sci., Hanoi, Vietnam

fYear

2012

fDate

1-3 Aug. 2012

Firstpage

35

Lastpage

39

Abstract

Compared to laser diode, LED offers advantages such as lower cost, better temperature stability and longer service life. LED is therefore the preferred choice for optical communication systems when environmental conditions are uncontrolled. However, modulation rate of LED and RC-LED at 100 Mb/s and 200 Mb/s, respectively, is much lower than that of tens of Gb/s in LD and VCSEL. Our newly proposed driver circuit uses carrier sweep-out effect in the active region when electrical pulse is turned off and peaking effect when electrical pulse is turned on in order to reduce influence of the LED´s diffusion capacitance. As the result, it is possible to transmit on-off keying (OOK) signal with speed up to 500 Mb/s.

Keywords

amplitude shift keying; broadband networks; light emitting diodes; optical fibre communication; LED diffusion capacitance; LED driver circuit; OOK signal; RC-LED; VCSEL; broadband short-range optical fiber communication systems; carrier sweep-out effect; electrical pulse; modulation rate; on-off keying signal; temperature stability; Cathodes; Light emitting diodes; Low earth orbit satellites; Optical fibers; Optical receivers; Light-emitting diode; Schottky diode; carrier sweep-out effect; optical fiber communication; peaking effect;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications and Electronics (ICCE), 2012 Fourth International Conference on

Conference_Location

Hue

Print_ISBN

978-1-4673-2492-2

Type

conf

DOI

10.1109/CCE.2012.6315866

Filename

6315866