Photonic crystal membrane waveguides with low insertion losses

Quynh Vy Tran; Combrié, Sylvain; Colman, Pierre; De Rossi, Alfredo
August 2009
Applied Physics Letters;8/10/2009, Vol. 95 Issue 6, p061105
Academic Journal
We demonstrate experimentally that the fiber to fiber total insertion loss into a single-mode waveguide in a suspended photonic crystal membrane can be reduced to less than 10 dB (input, output, and propagation) without introducing any supplementary processing step (e.g., polymer deposition and etching). This is achieved through a suitable design of the waveguide end-facets minimizing the impedance mismatch and thereby the residual reflectance at the waveguide ends.


Related Articles

  • Lightwave propagation through a 120° sharply bent single-line-defect photonic crystal waveguide. Tokushima, Masatoshi; Kosaka, Hideo; Tomita, Akihisa; Yamada, Hirohito // Applied Physics Letters;2/21/2000, Vol. 76 Issue 8 

    We have demonstrated 1.55 μm wavelength lightwave propagation through a 120° sharply bent waveguide formed in a triangular-lattice two-dimensional photonic crystal (2D PC). Such propagation has not previously been experimentally confirmed. The photonic crystal was fabricated in a...

  • Waveguiding in planar photonic crystals. Loncar, Marko; Nedeljkovic, Dusan; Doll, Theodor; Vuckovic, Jelena; Scherer, Axel; Pearsall, Thomas P. // Applied Physics Letters;9/25/2000, Vol. 77 Issue 13 

    Photonic crystal planar circuits designed and fabricated in silicon on silicon dioxide are demonstrated. Our structures are based on two-dimensional confinement by photonic crystals in the plane of propagation, and total internal reflection to achieve confinement in the third dimension. These...

  • Theoretical investigation of a two-dimensional photonic crystal slab with truncated cone air holes. Tanaka, Yoshinori; Asano, Takashi; Akahane, Yoshihiro; Song, Bong-Shik; Noda, Susumu // Applied Physics Letters;3/17/2003, Vol. 82 Issue 11, p1661 

    The effects of truncated cone air holes on propagation losses from line defect waveguides in two-dimensional (2D) photonic crystal (PC) slabs are investigated. It is shown that coupling between TE-like waveguide modes and TM-like slab modes due to out-of-plane structural asymmetries can result...

  • Thermo-optically tuned cascaded polymer waveguides taps. Taboada, John M.; Maki, Jeffrey J. // Applied Physics Letters;7/12/1999, Vol. 75 Issue 2, p163 

    Discusses the potential application of polymer thermo-optic-waveguide taps as light routers for guided-wave optical interconnects involving cascaded fanouts. Taps' ability to guide light from an optical bus bar and direct it into other devices in a switching/modulation network.

  • Visible photonic band gap engineering in silicon nitride waveguides. Netti, M. C.; Netti, M.C.; Charlton, M. D. B.; Charlton, M.D.B.; Parker, G. J.; Parker, G.J.; Baumberg, J. J. // Applied Physics Letters;2/21/2000, Vol. 76 Issue 8 

    We demonstrate experimentally the tuning of complete photonic band gaps in patterned silicon nitride waveguides. Transmission measurements were performed using an ultrabroadband high-brightness white light laser continuum, extracting extinction ratios as low as 10[sup -4] in the gap regions....

  • Conditions of single guided mode in two-dimensional triangular photonic crystal slab waveguides. Ryu, Han-Youl; Hwang, Jeong-Ki; Lee, Yong-Hee // Journal of Applied Physics;11/1/2000, Vol. 88 Issue 9, p4941 

    Discusses the application of the photonic band structure analyses to study the effect of slab thickness in two-dimensional photonic crystal slab waveguides. Description of the problem; Variation of a band gap with slab thickness; Single mode cutoff thickness.

  • Photonic crystal structure with square symmetry within each layer and a three-dimensional band gap. Roundy, David; Joannopoulos, John // Applied Physics Letters;6/2/2003, Vol. 82 Issue 22, p3835 

    We present a layered photonic crystal structure having a connectivity that is different from diamond which possesses square symmetry within each layer. This structure has a complete photonic band gap of 18% of the midgap frequency with a dielectric contrast of 12:1, and is a structure with...

  • Resonant Photonic States in Coupled Heterostructure Photonic Crystal Waveguides. Cox, J. D.; Sabarinathan, J.; Singh, M. R. // Nanoscale Research Letters;Apr2010, Vol. 5 Issue 4, p741 

    In this paper, we study the photonic resonance states and transmission spectra of coupled waveguides made from heterostructure photonic crystals. We consider photonic crystal waveguides made from three photonic crystals A, B and C, where the waveguide heterostructure is denoted as B/A/C/A/B. Due...

  • Group velocity and propagation losses measurement in a single-line photonic-crystal waveguide on InP membranes. Letartre, X.; Seassal, C.; Grillet, C.; Rojo-Romeo, P.; Viktorovitch, P.; Le Vassor d’Yerville, M.; Cassagne, D.; Jouanin, C. // Applied Physics Letters;10/8/2001, Vol. 79 Issue 15, p2312 

    Single-line photonic-crystal waveguides are investigated. Photoluminescence experiments and three-dimensional calculation are performed and allow a clear identification of the guided modes. The propagation properties of the latter (group velocity, losses) are extracted from photoluminescence...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics