Volume 6 Issue 2
Apr.  2013
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CHEN Xue-kun, ZHANG Lu, WU Zhi-yong. Coupling efficiency of free-space laser coupling into single mode fiber and photonic crystal fiber[J]. Chinese Optics, 2013, 6(2): 208-215. doi: 10.3788/CO.20130602.0208
Citation: CHEN Xue-kun, ZHANG Lu, WU Zhi-yong. Coupling efficiency of free-space laser coupling into single mode fiber and photonic crystal fiber[J]. Chinese Optics, 2013, 6(2): 208-215. doi: 10.3788/CO.20130602.0208

Coupling efficiency of free-space laser coupling into single mode fiber and photonic crystal fiber

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  • Corresponding author: WU Zhi-yong
  • Received Date: 17 Dec 2012
  • Rev Recd Date: 23 Jan 2013
  • Publish Date: 10 Apr 2013
  • It is necessary to confirm the system parameters by theoretical analysis and experiments for designing a optimum fiber-coupling system. By approximating the mode fields of a Single Mode Fiber(SMF) with a step index and a Photonic Crystal Fiber(PCF) with a Large Mode Area(LMA) using the Gaussian mode field, two analytical expressions for fiber-coupling efficiency in an ideal case and in the presences of lateral offset and fiber-end tilt are derived. Based on the two theoretical expressions, the efficiency for free-space laser coupling into the fibers is computed. Moreover, the validity of the two expressions are verified by experiments. As a result, the theoretical computation and experiments demonstrate that the SMF with the step index is more sensitive to the lateral offset compared to the PCF. When the offset is equal to the radius of the fiber core, the efficiency is only 20.25%, which is a quarter of the theoretical maximum efficiency. Besides, the PCF with the LMA is more sensitive to the fiber-end tilt. When the tilt angle is 2, the efficiency is only 40.5%, which is a half of the theoretical maximum efficiency. In conclusion, the proposed theoretical expressions and experiments can provide accurate parameters for designing fiber-coupling systems.

     

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  • [1] POLISHUK A,ARNON S. Optimization of a laser satellite communication system with an optical preamplifier[J]. J. Opt. Soc. Am. A,2004,21:1307-1315. [2] TOYOSHIMA M,JONO T,NAKAGAWA K,et al.. Optimum divergence angle of a Gaussian beam wave in the presence of random jitter in free-space laser communication systems[J]. J. Opt. Soc. Am. A,2002,19:567-571. [3] CHEN C C,GARDNER C S. Impact of random pointing and tracking errors on the design of coherent and incoherent optical intersatellite communication links[J]. IEEE Trans. Commun.,1989,37:252-260. [4] ARNON S,ROTMAN S R,KOPEIKA N S. Performance limitations of a free-space optical communication satellite network owing to vibrations:heterodyne detection[J]. Appl. Opt.,1998,37:6366-6374. [5] MA J,ZHAO F,TAN L Y,et al.. Plane wave coupling into single-mode fiber in the presence of random angular jitter[J]. Appl. Opt.,2009,48(27):5184-5189. [6] TOYOSHIMA M. Maximum fiber coupling efficiency and optimum beam size in the presence of random angular jitter for free-space laser systems and their applications[J]. J. Opt. Soc. Am. A,2006,23(9):2246-2250. [7] KNIGHT J C,BIRKS T A,RUSSELL P St J,et al.. All-silica single-mode optical fiber with photonic crystal cladding[J]. Opt. Lett.,1996,21(19):1547-1549. [8] LU S,LI W,GUO H,et al.. Analysis of birefringent and dispersive properties of photonic crystal fibers[J]. Appl. Opt.,2011,50(30):5798-5802. [9] XI X M. Mode-field expansion in photonic crystal fibers[J]. Appl. Opt.,2011,50(25):E50-E54. [10] RUILIER C,CASSAING F. Coupling of large telescope and single-mode waveguides:application to stellar interferometry[J]. J. Opt. Soc. Am. A,2001,18(1):143-149. [11] CORBETT J C W,ALLINGTON-SMITH J R. Coupling starlight into single-mode photonic crystal fiber using a field lens[J]. Opt. Express,2005,13(17):6527-6540. [12] CORBETT J,DABIRIAN A,BUTTERLEY T,et al.. The coupling performance of photonic crystal fibres in fibre stellar interferometry[J]. Mon. Not. R. Astron. Soc.,2006,368:203-210. [13] CORBETT J C W,MORRIS T J,ALLINGTON-SMITH J R. Tip-tilt requirements for coupling starlight into single-mode photonic crystal fibres using a lenslet:a first analysis[J]. New Astron. Rev.,2006,49(12):675-680. [14] POPPETT C,ALLINGTON-SMITH J. Coupling efficiency and termination of photonic crystal fibres for astronomy[J]. SPIE,2008,7018:7018Y1. [15] VERGNOLE S,DELAGE L,REYNAUD F,et al. Using photonic crystal fibre in the frame of stellar interferometer[J]. SPIE,2004,5491:1416-1424. [16] NAHAR N K,ROJAS R G. Coupling loss from free space to large mode area photonic crystal fibers[J]. J. Lightwave Technol.,2008,26(22):3669-3676. [17] HIROOKA T,HORI Y,NAKAZAWA M. Gaussian and Sech approximations of mode field profiles in photonic crystal fibers[J]. IEEE Photonics Techonol. Lett.,2004,16(4):1071-1073. [18] GOODMAN J W. Introduction to Fourier Optics[M]. New York:McGraw-Hill,1996.
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