Your browser does not support JavaScript!
http://iet.metastore.ingenta.com
1887

Coupling to nanophotonic waveguides using a dual grating-assisted directional coupler

Coupling to nanophotonic waveguides using a dual grating-assisted directional coupler

For access to this article, please select a purchase option:

Buy article PDF
£12.50
(plus tax if applicable)
Add to cart
Buy Knowledge Pack
10 articles for £75.00
(plus taxes if applicable)
Add to cart

IET members benefit from discounts to all IET publications and free access to E&T Magazine. If you are an IET member, log in to your account and the discounts will automatically be applied.

Learn more about IET membership 

Recommend Title Publication to library

You must fill out fields marked with: *

Librarian details
Name:*
Email:*
Your details
Name:*
Email:*
Department:*
Why are you recommending this title?
Select reason:
 
 
 
 
 
IEE Proceedings - Optoelectronics — Recommend this title to your library

Thank you

Your recommendation has been sent to your librarian.

IEE
Published

An analysis of a device we have called a dual grating-assisted directional coupler (DGADC) in silicon-on-insulator technology is presented. The device enables efficient coupling from optical fibres to small waveguides, typically <1 μm in cross-sectional dimensions. Coupling efficiency and device length are determined as functions of layer thicknesses and refractive indices, grating periods, depths and duty ratios, and finally wavelength. For our example calculation of coupling to a 250 nm silicon waveguide, this efficient and robust coupler can have coupling efficiency as high as 90%, while the wavelength range can have an FWHM of ∼1.6 nm at resonance. Fabrication tolerances have also been analysed and they are up to two orders of magnitude larger than those of a GADC with only one grating.

Inspec keywords: optical waveguides; micro-optics; optical directional couplers; diffraction gratings; silicon-on-insulator; integrated optics; refractive index; nanotechnology

Other keywords: duty ratio; silicon-on-insulator; refractive index; 250 nm; grating period; dual grating-assisted directional coupler; nanophotonic waveguide coupling

Subjects: Gratings, echelles; Micro-optical devices and technology; Integrated optics; Optical waveguides; Integrated optics; Micro-optical devices and technology; Optical waveguides and couplers

References

    1. 1)
    2. 2)
      • F. Bruno , M. del Giudice , R. Recca , F. Testa . Plasma-enhanced chemical vapor deposition of low-loss SiON waveguides at 1.5-μm wavelength. Appl. Opt. , 4560 - 4564
    3. 3)
      • D. Marcuse . Directional couplers made of nonidentical asymmetric slabs. Part II: Grating-assisted couplers. J. Lightwave Technol. , 268 - 273
    4. 4)
      • V.R. Almeida , R.P. Paanepucchi , M. Lipson . Nanotaper for compact mode conversion. Opt. Lett. , 1302 - 1304
    5. 5)
      • Orobtchouk, R., Schnell, N., Benyattou, T., Gregoire, J., Lardenois, S., Heitzmann, M., Fedeli, J.M.: `New ARROW optical coupler for optical interconnect', 2003 IEEE Int. Interconnect Technology Conf., San Francisco, CA, USA, June 2003.
    6. 6)
      • Day, I., Evans, I., Knights, A., Hopper, F., Roberts, S., Johnston, J., Day, S., Luff, J., Tsang, H., and Asghari, M.: ‘Tapered silicon waveguides for low insertion loss highly-efficient high-speed electronic variable optical attenuators’. OFC 2003, Atlanta, GA, USA, March 2003.
    7. 7)
    8. 8)
    9. 9)
    10. 10)
    11. 11)
      • R.R. Whiteman , A.P. Knights , D. George , I.E. Day , A. Vonsovici , A.A. House , G.F. Hopper , M. Asghari . Recent progress in the design, simulation, and fabrication of small cross-section silicon-on-insulator VOAs. Proc. SPIE , 146 - 156
    12. 12)
      • T.S. Barry , D.L. Rode , R.R. Krchnavek . Efficient coupling technique for single-mode optical D-fiber to buried polymer acrylic waveguide. Proc. SPIE , 22 - 29
    13. 13)
      • Frisch, M.B., Fijol, J.J., Fike, E.E., Jacobson, S.A., Keating, P.B., Kessler, W.J., LeBlanc, J., Bozler, C., Fritze, M., Keast, C., Knecht, J., Williamson, R., and Manalatou, C.: ‘Coupling of single mode fibers to planar Si waveguides using vertically tapered mode converters’. Confluent Photonics Corp., 2002, http://www.confluentphotonics.com/.
    14. 14)
      • J.J. Fijol , E.E. Fike , P.B. Keating , D. Gilbody , J.J. LeBlanc , S.A. Jacobson , W.J. Kessler , M.B. Frish . Fabrication of silicon-on-insulator adiabatic tapers for low-loss optical interconnection of photonic devices. Proc. SPIE , 157 - 170
    15. 15)
      • T. Conese , G. Barbarossa , M.N. Armenise . Vertical coupling between D-fibre and buried rectangular waveguide: an accurate analysis by vectorial finite element method. Proc. SPIE , 231 - 242
    16. 16)
    17. 17)
    18. 18)
    19. 19)
      • Kovacic, S.J., Macelwee, T., Ojha, J.J.: `Method of low-loss insertion of an optical signal from an optical fibre to a waveguide integrated on to a semiconductor wafer', U.S., 5 703 980, 30 Dec. 1997.
    20. 20)
    21. 21)
    22. 22)
    23. 23)
      • http://www.soitec.com.
    24. 24)
    25. 25)
    26. 26)
    27. 27)
      • D.W. Prather , J. Murakowski , S. Venkataraman , Y. Peng , A. Balcha , T. Dillon , D. Pustai . Novel fabrication methods for 2D photonic crystals in silicon slab waveguides. Proc. SPIE , 89 - 99
    28. 28)
      • S.J. McNab , N. Moll , Y.A. Vlasov . Ulatra-low loss photonic integrated circuit with membrane-type photonic crystal waveguides. Opt. Express , 2927 - 2939
    29. 29)
http://iet.metastore.ingenta.com/content/journals/10.1049/ip-opt_20055006
Loading

Related content

content/journals/10.1049/ip-opt_20055006
pub_keyword,iet_inspecKeyword,pub_concept
6
6
Loading
Print this page
This is a required field
Please enter a valid email address