Optical waveguides – Planar optical waveguide – Thin film optical waveguide
Patent
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.
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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.
Gentner Jean-Louis
Goldstein Leon
Leclerc Denis
Vinchant Jean-Fran.cedilla.ois
ALCATEL N.V.
Bovernick Rodney B.
Sanghavi Hemang
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