Title :
Laser coupling to single-mode fibre using graded-index lenses and compact disc 1.3 μm laser package
Author :
Reith, L.A. ; Shumate, P.W. ; Koga, Yohei
Author_Institution :
Bell Communications Research, Murray Hill, USA
Abstract :
A 1.3 μm laser in a compact disc package is coupled to single-mode fibre using two graded-index lenses in a nearly confocal scheme. An increase in the alignment tolerance at the lens-lens interface by a factor of six suggests the design for a potentially very low-cost connectorised laser package. The coupling efficiency of approx. 6% (-12 dB) is shown to be adequate for local loop applications.
Keywords :
gradient index optics; lenses; optical communication; optical couplers; optical fibres; semiconductor junction lasers; 1.3 micron laser; alignment tolerance; compact disc package; confocal scheme; connectorised laser package; coupling efficiency; graded-index lenses; laser coupling; lens-lens interface; local loop applications; optical communications; semiconductor laser; single-mode fibre;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19860573
