Explicit analytic design rules are derived for both 3dB and full adiabatic couplers. The design rules are in excellent agreement with numerical calculations using the beam propagation method (BPM). It is shown that the length scaling for 3 dB couplers compared to full couplers makes the former more difficult to design. The design for each case is optimized to obtain the upper limit of performance and a comparison is carried out between two different design geometries for both 3 dB and full adiabatic couplers.


PDF Article


  • View by:
  • |

  1. D. R. Rowland, Y. Chen, and A. W. Snyder, "Tapered mismatched couplers," J. Lightwave Technol., vol. 9, pp. 567-570, 1991.
  2. A. W. Snyder, Y. Chen, D. Rowland, and D. J. Mitchell, "Mismatched directional coulpers," Opt. Lett., vol. 15, pp. 357-359, 1990.
  3. W. K. Burns, A. F. Milton, A. B. Lee, and E. J. West, "Optical modal evolution 3-dB coupler," Appl. Opt., vol. 15, pp. 1053-1065, 1976.
  4. C. P. Hussell, R. V. Ramaswamy, R. Srivastava, and J. L. Jackel, "Adiabatic invariance in GRIN channel waveguides and its use in 3-dB cross couplers," Appl. Opt., vol. 29, pp. 4105-4110, 1990.
  5. A. F. Milton and W. K. Burns, "Tapered velocity couplers for integrated optics: Design," Appl. Opt., vol. 14, pp. 1207-1212, 1975.

Cited By

OSA participates in CrossRef's Cited-By Linking service. Citing articles from OSA journals and other participating publishers are listed here.

Alert me when this article is cited.