Title :
InGaAsP/InP MQW directional coupler switch with small and low-loss bends for fiber-array coupling
Author :
Aizawa, T. ; Ravikumar, K.G. ; Nagasawa, Y. ; Sekiguchi, T. ; Watanabe, T.
Author_Institution :
Adv. Tech. R&D Center, Fujikura Ltd., Chiba, Japan
fDate :
6/1/1994 12:00:00 AM
Abstract :
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.
Keywords :
III-V semiconductors; directional couplers; gallium arsenide; indium compounds; integrated optics; optical couplers; optical fibres; optical losses; optical switches; semiconductor quantum wells; 125 mum; 2 mm; 420 mum; InGaAsP-InP; InGaAsP/InP MQW directional coupler switch; coupling region; fiber-array coupling; input facets; lateral direction; low-loss bends; optical confinements; output facets; small low-loss bends; spacing; total device length; voltage-length product; Directional couplers; Indium phosphide; Optical coupling; Optical devices; Optical fiber couplers; Optical fiber devices; Optical switches; Optical waveguides; Quantum well devices; Voltage;
Journal_Title :
Photonics Technology Letters, IEEE
