Linear InGaAsP edge-emitting LED´s for single-mode fiber communications

Author

Kashima, Yasumasa ; Matoba, Akio ; Takano, Hiroshi

Author_Institution

OKI Electric Ind. Co. Ltd., Tokyo, Japan

Volume

10

Issue

11

fYear

1992

fDate

11/1/1992 12:00:00 AM

Firstpage

1650

Lastpage

1655

Abstract

A 1.3-μm edge-emitting diode with a linear radiance and high coupled power into a fiber is described. The LED yields 60 μW of coupled power into a single-mode fiber at a driving current of 100 mA and an ambient temperature of 25°C. A V-groove structure with an optical absorption region separated from an active region is used. At active layer thicknesses below 0.14 μm, linear current-light output characteristics are obtained. The spectral modulation depth is 0% over the entire emission spectral width of 75 nm, and coherence length is 22.5 μm. LED characteristics are achieved in the range from -30 to 85°C at a driving current of 100 mA. The LEDs exhibit a cutoff frequency of 250 MHz. LED reliability is discussed using results of accelerated aging carried out at the ambient temperatures of 50, 125, and 200°C. The activation energy of degradation is determined to be 0.63 eV, and LED half-lives are estimated to be in excess of 10⁶ h

Keywords

III-V semiconductors; gallium arsenide; gallium compounds; indium compounds; life testing; light emitting diodes; optical communication equipment; reliability; semiconductor device testing; spectral line breadth; -30 to 85 degC; 0.14 micron; 0.63 eV; 1×10⁶ hrs; 1.3 micron; 100 mA; 125 degC; 200 degC; 25 degC; 250 MHz; 50 degC; 60 muW; IR; InGaAsP; LED; LED half-lives; LED reliability; V-groove structure; accelerated aging; activation energy; active layer thicknesses; active region; ambient temperature; coherence length; coupled power; cutoff frequency; degradation; driving current; edge-emitting diode; emission spectral width; fibre coupling; high coupled power; linear current-light output characteristics; linear radiance; optical absorption region; semiconductors; single-mode fiber; single-mode fiber communications; spectral modulation depth; Absorption; Cutoff frequency; Light emitting diodes; Optical fiber communication; Optical modulation; Optical sensors; Stimulated emission; Superluminescent diodes; Temperature distribution; Temperature sensors;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.184904

Filename

184904