公开(公告)号：EP1130726A2

公开(公告)日：2001-09-05

申请号：EP01101737.3

申请日：2001-01-25

Applicant: THE FURUKAWA ELECTRIC CO., LTD.

Inventor： Kasukawa, Akihiro, c/o The Furukawa Electric Co. ,  Iwai, Norihiro, c/o The Furukawa Electric Co., Ltd ,  Funabashi, Masaki, c/o The Furukawa Electric Co.

IPC: H01S5/40 ,  H01S5/12

CPC classification number: H01S5/12 ,  H01S5/2215 ,  H01S5/222 ,  H01S5/4031 ,  H01S5/4087

Abstract: A distributed feedback semiconductor laser device including an active layer (18), a diffraction grating disposed in a vicinity of the active layer (18) and having a substantially uniform space period and a distributed feedback function, and a functional layer (28a and 32) disposed in a vicinity of the diffraction grating and the active layer (18) and having a function of controlling a refractive index of the active layer (18), whereby the functional layer controls a lasing wavelength of the active layer (18). The functional layer of controlling the refractive index of the distributed feedback semiconductor laser device can generate a plurality of the lasing wavelengths different among one another and easily controllable.

Abstract translation: 一种分布式反馈半导体激光器件，包括有源层（18），设置在有源层（18）附近并且具有基本均匀的空间周期和分布反馈功能的衍射光栅以及功能层（28a和32） 设置在衍射光栅和有源层（18）附近，并且具有控制有源层（18）的折射率的功能，由此功能层控制有源层（18）的激光波长。 控制分布式反馈半导体激光器件的折射率的功能层可以产生彼此不同的多个激光波长并且易于控制。