Journal of the Optical Society of Korea

Optical Society of Korea (한국광학회)
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Design of PLC Triplexer Using Three Waveguide Interferometer

  • Choi, Jun-Seok (Integrated optics laboratory, Department of Physics, Chonnam National University) ;
  • Oh, Jin-Kyong (Integrated optics laboratory, Department of Physics, Chonnam National University) ;
  • Lee, Dong-Hwan (Integrated optics laboratory, Department of Physics, Chonnam National University) ;
  • Lee, Hyung-Jong (Integrated optics laboratory, Department of Physics, Chonnam National University) ;
  • Kim, Sang-Duk (Department of Information Communication, Dong-A College)
  • Received : 2008.06.16
  • Accepted : 2008.08.26
  • Published : 2008.09.25
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Abstract

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%.

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References

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