Title :
Efficient coupling of optical fiber to silicon photodiode
Author :
Baltuch, O. ; Lee, V. ; Wong, S.
Author_Institution :
Nat. Semicond. Corp., Santa Clara, CA, USA
fDate :
6/1/1989 12:00:00 AM
Abstract :
A technique to couple an optical fiber to a silicon p-n junction diode photodetector is described. Spin on glass is used to create an alignment sheath to receive the tapered end of an optical fiber, to stabilize the structure, and to eliminate the air gap between the fiber and the photodetector. By using an antireflective film, differential responsivity of 0.58 A/W at a wavelength of 810 nm has been measured. Dark leakage current is less than 10 nA/cm/sup 2/.<>
Keywords :
elemental semiconductors; optical couplers; optical fibres; photodiodes; silicon; 810 nm; SOG alignment sheath; Si photodiodes; air gap elimination; antireflective film; coupling of optical fiber; differential responsivity; fibre tapered end; fibre to photodiode coupling; leakage current; p-n junction diode photodetector; spin-on-glass; wavelength; Diodes; Glass; Optical coupling; Optical fibers; Optical films; P-n junctions; Photodetectors; Photodiodes; Silicon; Wavelength measurement;
Journal_Title :
Electron Device Letters, IEEE
