Segmented optical waveguide suitable in particular for being inc

Details Segmented optical waveguide suitable in particular for being inc Segmented optical waveguide suitable in particular for being inc

1996-02-16

1997-11-11

Bovernick, Rodney B.

Optical waveguides

Planar optical waveguide

Thin film optical waveguide

385132, 385 14, 385 43, 385 49, 385 50, 385129, 372 50, G02B 610, H01S 319

Patent

active

056872720

ABSTRACT:
An optical waveguide includes, in monolithic manner, a rear segment, a transition segment, and a front segment extending and succeeding one another along the length of the waveguide. A lateral confinement factor and a width the waveguide are respectively larger and smaller in the rear segment than in the front segment. According to the invention, the width increases in the transition segment until it reaches a value that is larger than that of the front segment. The invention is particularly applicable to integrating together a laser and an optical modulator for a telecommunications system.

REFERENCES:
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patent: 5153935 (1992-10-01), Mueller
patent: 5259049 (1993-11-01), Bona et al.
patent: 5515464 (1996-05-01), Sheem
patent: 5521994 (1996-05-01), Takeuchi et al.
J. M. Cheong et al, "High Alignment Tolerance Coupling Scheme for Mutichannel Laser Diode/Singlemode Fibre Modules Using a Tapered Waveguide Array", Electronics Letters, vol. 30, No. 18, Sep. 1, 1994, pp. 1515-1516.
O. Mitomi et al, "Design of a single-mode tapered waveguide for low-loss chip-to-fiber coupling", IEEE Journal of Quantum Electronics, vol. 30, No. 8, Aug. 1994, New York, US pp. 1787-1793.
M. Suzuki et al, "Monolithic integration of InGaAsP/InP", Journal of Lightwave Technology, vol. 5, No. 9, Sep. 1987, New York, pp. 1277-1285.

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