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Journal of the Optical Society of Korea

Journal of the Optical Society of Korea


  • Vol. 12, Iss. 3 — Sep. 25, 2008
  • pp: 162–165

Design of PLC Triplexer Using Three Waveguide Interferometer

Jun-Seok Choi, Jin-Kyong Oh, Dong-Hwan Lee, Hyung-Jong Lee, and Sang-Duk Kim  »View Author Affiliations

Journal of the Optical Society of Korea, Vol. 12, Issue 3, pp. 162-165 (2008)

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A novel planar lightwave circuit(PLC) triplexer using a three-waveguide interferometer(TWI) is proposed and examined using the transfer matrix and the beam propagation methods. The proposed triplexer consists of two three-waveguide couplers and three waveguides connecting the couplers. Simulation for the TWI triplexer shows the excess losses of 0.03 dB and 0.94 dB with the crosstalks of -22.3 dB and -14.5 dB in reception, respectively, for the wavelength of 1490- and 1550-nm, while showing the excess loss of 1.75 dB in transmission for the wavelength of 1310 nm. The proposed design shows compact feature as short as 11.5 mm for the refractive-index contrast of 0.45%.

© 2008 Optical Society of Korea

OCIS Codes
(230.3120) Optical devices : Integrated optics devices
(230.7380) Optical devices : Waveguides, channeled
(230.7390) Optical devices : Waveguides, planar

Original Manuscript: June 16, 2008
Revised Manuscript: August 11, 2008
Manuscript Accepted: August 26, 2008
Published: September 25, 2008

Jun-Seok Choi, Jin-Kyong Oh, Dong-Hwan Lee, Hyung-Jong Lee, and Sang-Duk Kim, "Design of PLC Triplexer Using Three Waveguide Interferometer," J. Opt. Soc. Korea 12, 162-165 (2008)

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  1. J. H. Song, K. S. Lee, and Y. Oh, "Triple wavelength demultiplexers for low-cost optical triplexer transceivers," IEEE J. Lightwave Technol., vol. 25, pp. 350–358, 2007 [CrossRef]
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