Transition device for optical waveguides

Details Transition device for optical waveguides Transition device for optical waveguides

2008-06-04

2011-10-18

Kim, Ellen (Department: 2874)

Optical waveguides

With optical coupler

Particular coupling structure

C385S012000, C029S600000

Reexamination Certificate

active

08041164

ABSTRACT:
A transition part (1) between two optical waveguides (2,3) with different index contrast is characterised in that the transition part (1) includes a non-adiabatically up-tapered longitudinal section (8), and in that the transition (7) between the two waveguides (2,3) is arranged after the up-tapered longitudinal section (8) as seen along the main direction (L) of propagation of the light. A method of manufacturing the transition part is also described.

REFERENCES:
patent: 5659646 (1997-08-01), Vinchant et al.
patent: 7079727 (2006-07-01), Little
patent: 7184207 (2007-02-01), Walker et al.
patent: 2006/0115200 (2006-06-01), Van Der Vliet
patent: 2008/0080808 (2008-04-01), Tolshikhin et al.
International Search Report, dated Nov. 6, 2008, from corresponding PCT application.
Bert Luyssaert et al., “Efficient Nonadiabatic Planar Waveguide Tapers”, Journal of Lightwave Technology, Aug. 2005, pp. 2462-2468, vol. 23, No. 8, IEEE.
Victor Nguyen et al., “Silicon-based highly-efficient fiber-to-waveguide coupler for high index contrast systems”, Applied Physics Letters, 2006, pp. 081112-1-081112-3, vol. 88, American Institute of Physics.

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