The quantum well optical modulator module and the optical communication system which for optical communication use that

摘要

Abstract Topic With the quantum well which forms in only former III-V groupBecause vibrator strength of the exciton is not sufficient, expanding well widthIt is when, out light ratio degradates. Solutions In well formation 11 big material of dielectricity factor (III-V group chemical compound) of making use, in addition, in barrier layer 12 the inviting of ZeSe and the likeMaking use of the small material (II-VI group chemical compound) of electric factor the quantum wellTo form structure, well formation ratio of dielectricity factor of 11 and barrier layer 12Enlarging than 1.5, the electron with the quantum well and Kuu of the positive holeTo make remaining overnight interaction reinforce, binding energy and the vibration of the excitonChild strength is made to increase. And, binding energy of excitonQuantum well width when it maintains uniformly in comparison with former material systemEnlarging, it makes working voltage low.