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Optics Letters

Optics Letters


  • Vol. 24, Iss. 23 — Dec. 1, 1999
  • pp: 1708–1710

Volume grating preferential-order focusing waveguide coupler

Stephen M. Schultz, Elias N. Glytsis, and Thomas K. Gaylord  »View Author Affiliations

Optics Letters, Vol. 24, Issue 23, pp. 1708-1710 (1999)

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A volume grating focusing waveguide coupler has been designed, fabricated, and tested. The volume grating is designed to couple a 633-nm wave guided in a single-mode polyimide waveguide preferentially into the air cover. The beam is outcoupled normally to the surface of the waveguide and focused to a line 25 mm above the waveguide. The slanted-fringe volume grating is holographically recorded by the interference of two coherent 364-nm ultraviolet waves focused with a cylindrical lens to produce the chirped grating. The 1-mm-long volume grating coupler exhibits a preferential-coupling ratio of 0.98, a coupling efficiency of 95%, and an almost diffraction-limited focal line with a full width at half-maximum of 10.49μm.

© 1999 Optical Society of America

OCIS Codes
(050.0050) Diffraction and gratings : Diffraction and gratings
(050.1950) Diffraction and gratings : Diffraction gratings
(050.1970) Diffraction and gratings : Diffractive optics
(090.7330) Holography : Volume gratings
(130.0130) Integrated optics : Integrated optics

Stephen M. Schultz, Elias N. Glytsis, and Thomas K. Gaylord, "Volume grating preferential-order focusing waveguide coupler," Opt. Lett. 24, 1708-1710 (1999)

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  1. T. Liao, S. Sheard, M. Li, J. Zhu, and P. Prewett, J. Lightwave Technol. 15, 1142 (1997).
  2. S. M. Schultz, E. N. Glytsis, and T. K. Gaylord, Appl. Opt. 37, 2278 (1998).
  3. W. Gambogi, W. Gerstadt, S. Mackara, and A. Weber, Proc. SPIE 1555, 256 (1991).
  4. C. Zhao, J. Liu, Z. Fu, and R. T. Chen, Appl. Phys. Lett. 71, 1464 (1997).
  5. W. Driemeier, Opt. Lett. 15, 725 (1990).

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