耦合的光发射二极管使用球面透镜光纤fanyi.doc

The coupling of light‐emitting diodes to optical fibers using sphere lenses R. A. Abram, R. W. Allen, and R. C. Goodfellow Citation: Journal of Applied Physics 46, 3468 (1975); doi: 10.1063/1.322072 View online: /10.1063/1.322072 View Table of Contents: /content/aip/journal/jap/46/8?ver=pdfcov Published by the AIP Publishing Articles you may be interested in Novel exposure system using light-emitting diodes and an optical fiber array for printing serial numbers and code marks Rev. Sci. Instrum. 83, 045115 (2012); 10.1063/1.3702796 Optical switching in midinfrared light-emitting diodes Appl. Phys. Lett. 80, 2821 (2002); 10.1063/1.1470690 Optical remote monitoring of CH4 gas using low‐loss optical fiber link and InGaAsP light‐emitting diode in 1.33‐ μm region Appl. Phys. Lett. 43, 634 (1983); 10.1063/1.94469 Use of light‐emitting diodes as temperature sensors Rev. Sci. Instrum. 48, 1225 (1977); 10.1063/1.1135231 Inexpensive photometer using light‐emitting diodes Am. J. Phys. 44, 188 (1976); 10.1119/1.10503 [This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: /termsconditions. Downloaded to ] IP: 2 On: Sat, 11 Apr 2015 02:05:41 The coupling of light-emitting diodes to optical fibers using sphere lenses R. A. Abram, R. W. Allen, and R. C. Goodfellow Allen Clark Research Center. The Plessey Company Limited. Caswell, Towcester, Northants, England (Received 5 December 1974) The use of a truncated sphere of high-refractive-index material is proposed as a lens designed to improve the coupling efficiency between a light-emitting-diode source and an optical fiber. A method of calculating the coupling efficiency for such lens systems is described. Numerical results for the variation of efficiency with lens parameters are presented and discussed for coupling to a fiber bundle with a numerical aperture of 0.14. Improvements of two orders