PHOTONIC CRYSTAL LASER, METHOD OF MANUFACTURING PHOTONIC CRYSTAL LASER, SURFACE EMITTING LASER ARRAY, LIGHT TRANSMISSION SYSTEM, AND WRITING SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a photonic crystal laser which has a photonic crystal period structure where refractive indexes are two-dimensionally, periodically located near an active layer emitting by injection of carriers and resonates with the photonic crystal to surface-emit; a method of manufacturing the photonic crystal; a surface-emitting laser array; a light transmission system; and a writing system.;SOLUTION: Because almost all the carriers pass through positions apart from holes of a low refractive index due to an effect of a current passage limiting layer which is composed of a high resistance area and conductive area located near the two-dimensional photonic crystal structure provided with a low-refractive index in a semiconductor layer, the proportion of the carriers reached a side wall to the carrier passing through the two-dimensional photonic crystal structure becomes small, thereby, the non-emitting recombination on the side wall of the hole of low refractive index is reduced. By preventing the non-emitting recombination, the leakage of current is inhibited, and the laser light can be resonated with a low threshold current.;COPYRIGHT: (C)2006,JPO&NCIPI