InGaAsP/InP MQW directional coupler switch with small and low-loss bends for fiber-array coupling

We report on a compact InGaAsP/InP MQW directional coupler switch with spacing between the waveguides at the input and the output facets larger than 125 μm, required for the fiber-array coupling, by employing small low-loss bends. The total device length, including both the coupling and the bending...

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Veröffentlicht in:	IEEE photonics technology letters 1994-06, Vol.6 (6), p.709-711
Hauptverfasser:	Aizawa, T., Ravikumar, K.G., Nagasawa, Y., Sekiguchi, T., Watanabe, T.
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Circuit properties Directional couplers Electric, optical and optoelectronic circuits Electronics Exact sciences and technology Indium phosphide Integrated optics. Optical fibers and wave guides Optical and optoelectronic circuits Optical coupling Optical devices Optical fiber couplers Optical fiber devices Optical switches Optical waveguides Quantum well devices Voltage
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Beschreibung
Zusammenfassung:	We report on a compact InGaAsP/InP MQW directional coupler switch with spacing between the waveguides at the input and the output facets larger than 125 μm, required for the fiber-array coupling, by employing small low-loss bends. The total device length, including both the coupling and the bending regions, with the different optical confinements in the lateral direction is 2 mm. The coupling region of the switch is 420 μm, and the voltage-length product at switching is around 6 Vmm.
ISSN:	1041-1135 1941-0174
DOI:	10.1109/68.300170