Electroabsorption modulator and method of manufacturing the...

Optical waveguides – Integrated optical circuit

Reexamination Certificate

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C385S001000, C385S002000, C385S003000, C385S043000, C385S049000, C385S130000, C385S131000, C385S027000, C385S028000, C438S029000, C438S031000

Reexamination Certificate

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07359588

ABSTRACT:
Provided is a double waveguide electroabsorption modulator, in which two spot size converters are integrated between first and second optical waveguides, thereby reducing an insertion loss between an optical fiber and an optical modulator while favorably operating even in high input optical power. Therefore, the electroabsorption modulator can stably operate in higher input optical power while reducing an optical coupling loss and an optical confinement factor (OCF).

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patent: 2007/0171515 (2007-07-01), Kang et al.
patent: 2005-043556 (2005-02-01), None
Notice of Allowance for Korean App. 10-2004-0105699.
Yuling Zhuang et al; “Peripheral-Coupled-Waveguide MQW Electroabsorption Modulator for Near Transparency and High Spurious Free Dynamic Range RF Fiber-Optic Link”; IEEE Photonics Technology Letters, vol. 16, No. 9; Sep. 2004; pp. 2033-2035.
J.E. Johnson et al; “Monolithically Integrated Semiconductor Optical Amplifier and Electroabsorption Modulator with Dual-Waveguide Spot-Size Converter Input”; IEEE Journal of Selected Topics in Quantum Electronics, vol. 6, No. 1; Jan. 2000; pp. 19-25.
Hiromi Oohashi et al.; “Reliability of 1300-nm Spot-Size Converter Integrated Laser Diodes for Low-Cost Optical Modules in Access Networks”; Journal of Lightwave Technology, vol. 16, No. 7; Jul. 1998; pp. 1302-1307.

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