Unidirectional complex grating assisted couplers

doi:10.1364/OPEX.12.004013

Optics Express

Editor: Michael Duncan
Vol. 12, Iss. 17 — Aug. 23, 2004
pp: 4013–4018

Unidirectional complex grating assisted couplers

Maxim Greenberg and Meir Orenstein »View Author Affiliations

Optics Express, Vol. 12, Issue 17, pp. 4013-4018 (2004)
http://dx.doi.org/10.1364/OPEX.12.004013

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Abstract
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References (8)
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Abstract

We present a novel concept which enables the realization of unidirectional and irreversible grating assisted couplers by using gain-loss modulated medium to eliminate the reversibility. Employing a matched periodic modulation of both refractive index and loss (gain) we achieve a unidirectional energy transfer between the modes of the coupler which translates to light transmission from one waveguide to another while disabling the inverse transmission. The importance of self coupling coefficients is explored as well and a feasible implementation, where the real and imaginary perturbations are implemented in different waveguides is presented.

OCIS Codes
(060.1810) Fiber optics and optical communications : Buffers, couplers, routers, switches, and multiplexers
(130.3120) Integrated optics : Integrated optics devices
(250.4480) Optoelectronics : Optical amplifiers

ToC Category:
Research Papers

History
Original Manuscript: July 27, 2004
Revised Manuscript: August 11, 2004
Published: August 23, 2004

Citation
Maxim Greenberg and Meir Orenstein, "Unidirectional complex grating assisted couplers," Opt. Express 12, 4013-4018 (2004)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-12-17-4013

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References

T.L. Koch, E.G. Burkhard, F.G. Stortz, T.J. Bridges and T. Sizer, II, Vertically grating-coupled ARROW structures for III-V integrated optics,�?? IEEE J. Quantum Electron. QE-23, 889-897, (1987). [CrossRef]
B.Little and T.Murphy, "Design rules for maximally flat wavelength-insensitive optical power dividers using Mach-Zehnder structures," IEEE Photon. Technol. Lett. 9, 1607-1609, (1997). [CrossRef]
R.C. Alferness, T.L. Koch, L.L.Buhl, F.Storz, F.Heismann and M.J.R. Martyak, "Grating-assisted InGaAs/InP verstical codirectional coupler filter," Appl. Phys. Lett. 55, 2011-2013, (1989) [CrossRef]
G.R. Hill, "Wavelength domain optical network techniques," in Proc. IEEE 77, 121-132, (1989).
L.Poladian, "Resonanse mode expansions and exact solutions for nonuniform gratings," Phys. Rev. E 54, 2963-2975, (1996). [CrossRef]
D.Marcuse, Theory of Dielectric Optical Waveguides Sec. Ed., Academic Press, Boston San Diego, New York, (1974).
M.Greenberg, M.Orenstein, "Irreversible coupling by use of dissipative optics," Opt. Lett. 29, 451-453, (2004). [CrossRef] [PubMed]
W. P. Huang, C. L. Xu "Simulation of Three-Dimensional Optical Waveguides by a Full-Vector Beam Propagation Metod," IEEE J. Quantum Electron. 29, 2639-2649 (1993). [CrossRef]

Appl. Phys. Lett.

R.C. Alferness, T.L. Koch, L.L.Buhl, F.Storz, F.Heismann and M.J.R. Martyak, "Grating-assisted InGaAs/InP verstical codirectional coupler filter," Appl. Phys. Lett. 55, 2011-2013, (1989) [CrossRef]

IEEE J. Quantum Electron.

T.L. Koch, E.G. Burkhard, F.G. Stortz, T.J. Bridges and T. Sizer, II, Vertically grating-coupled ARROW structures for III-V integrated optics,�?? IEEE J. Quantum Electron. QE-23, 889-897, (1987). [CrossRef]
W. P. Huang, C. L. Xu "Simulation of Three-Dimensional Optical Waveguides by a Full-Vector Beam Propagation Metod," IEEE J. Quantum Electron. 29, 2639-2649 (1993). [CrossRef]

IEEE Photon. Technol. Lett.

B.Little and T.Murphy, "Design rules for maximally flat wavelength-insensitive optical power dividers using Mach-Zehnder structures," IEEE Photon. Technol. Lett. 9, 1607-1609, (1997). [CrossRef]

Opt. Lett.

M.Greenberg, M.Orenstein, "Irreversible coupling by use of dissipative optics," Opt. Lett. 29, 451-453, (2004). [CrossRef] [PubMed]

Phys. Rev. E

L.Poladian, "Resonanse mode expansions and exact solutions for nonuniform gratings," Phys. Rev. E 54, 2963-2975, (1996). [CrossRef]

Proc. IEEE

G.R. Hill, "Wavelength domain optical network techniques," in Proc. IEEE 77, 121-132, (1989).

Other

D.Marcuse, Theory of Dielectric Optical Waveguides Sec. Ed., Academic Press, Boston San Diego, New York, (1974).

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