ETRI Journal

Electronics and Telecommunications Research Institute (한국전자통신연구원)
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Low-Loss Compact Arrayed Waveguide Grating with Spot-Size Converter Fabricated by a Shadow-Mask Etching Technique

  • Jeong, Geon (Department of Photonics Engineering, Chonnam National University) ;
  • Kim, Dong-Hoon (Department of Applied Chemical Engineering, Chonnam National University) ;
  • Choi, Jun-Seok (Department of Physics, Chonnam National University) ;
  • Lee, Dong-Hwan (Department of Mechanical Engineering, Chonnam National University) ;
  • Park, Mahn-Yong (Broadband Convergence Network Research Division, ETRI) ;
  • Kim, Jin-Bong (Department of Applied Chemical Engineering, Chonnam National University) ;
  • Lee, Hyung-Jong (Department of Physics, Chonnam National University) ;
  • Lee, Hyun-Yong (Department of Applied Chemical Engineering, Chonnam National University)
  • Received : 2004.03.19
  • Published : 2005.02.28
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Abstract

This paper describes a low-loss, compact, 40-channel arrayed waveguide grating (AWG) which utilizes a monolithically integrated spot-size converter (SSC) for lowering the coupling loss between silica waveguides and standard single-mode fibers. The SSC is a simple waveguide structure that is tapered in both the vertical and horizontal directions. The vertically tapered structure was realized using a shadow-mask etching technique. By employing this technique, the fabricated, 40-channel, 100 GHz-spaced AWG with silica waveguides of 1.5% relative index-contrast showed an insertion-loss figure of 2.8 dB without degrading other optical performance.

Keywords

References

  1. IEEE J. Select. Topics Quantum Electron v.8 no.6 Recent Advances in High-Density and Large-Scale AWG Multi/Demultiplexers with Higher Index-Contrast Silica-Based PLCs Hibino, Y.
  2. J. Lightwave Technol. v.10 Index-and-Dimensional Taper and its Application to Photonic Devices Yanagawa, H.;Shimizu, T.;Nakamura, S.;Ohyama, I.
  3. Electron. Lett. v.37 Vertically Tapered Core Polymeric Optical Spot-Size Transformer Bakke, T.;Sullivan, C.T.;Mukherjee, S.D.
  4. J. Lightwave Technol. v.17 no.3 Tapered Polymer Single-Mode Waveguides for Mode Transformation Fan, R.S.;Hooker, R.B.
  5. Proc. ECOC. 2001, Paper Mo.F.2.4 Low-Loss 1.5% ${\Delta}$ Arrayed Waveguide Grating with Spot-Size Converters Itoh, M.;Saida, T.;Hida, Y.;Ishii, M.;Inoue, Y.;Hibino, Y.;Sugita, A.
  6. IEEE Photon. Technol. Lett. v.5 A Simple Laterally Tapered Waveguide for Low-Loss Coupling to Single-Mode Fibers Kasaya, K.;Mitomi, O.;Naganuma, M.;Kondo, Y.;Noguchi, Y.
  7. Electron Lett. v.37 Low-Loss $1.5%-{\Delta}$ Arrayed Waveguide Grating with Narrow Laterally Tapered Spot-Size Converter Mizuno, T.;Kitoh, T.;Saida, T.;Inoue, Y.;Itoh, M.;Shibata, T.;Hibino, Y.;Hida, Y.
  8. IEEE Photonic. Technol. Lett. v.15 no.2 Compact and Low-Loss Arrayed Waveguide Grating Module Withy Tolerance-Relaxed Spot-Size Converter Mizuno, T.;Kitoh, T.;Ishii, M.;Inoue, Y.;Saida, T.;Itoh, M.;Shibata, T.;Hibino, Y.
  9. Electron. Lett. v.38 no.2 Large Reduction of Single Mode-Fiber Coupling Loss in 1.5% ${\Delta}$ Planar Lightwave Circuits Using Spot-Size Converters Itoh, M.;Saida, T.;Hida, Y.;Ishii, M.;Inoue, Y.;Hibino, Y.;Sugita, A.
  10. J. Lightwave Technol. v.16 no.9 A Very Short Planar Silica Spot-Size Converter Using a Nonperiodic Segmented Waveguide Spuhler, M.M.;Offrein, B.J.;Bona, G.L.;Germann, R.;Massarek, I.;Emi, D.
  11. Electron. Lett. v.31 no.10 Vertically Tapered Spot Size Transformers by a Simple Masking Technique Jacobs, B.;Zengerle, R.;Faltin, K.;Weiershausen, W.
  12. IEEE Photon. Technol. Letters v.10 no.8 Numerical Study of Spot-Size Expanders for an Efficient OEIC to SMF Coupling Rajarajan, M.;Rahman, B.M.A.;Gratan, K.T.V.
  13. Fundamentals of Optical Waveguides Okamoto, K.