Quasicontinuous wavelength tuning in super-structure-grating (SSG) DBR lasers

被引:187
作者
Ishii, H
Tanobe, H
Kano, F
Tohmori, Y
Kondo, Y
Yoshikuni, Y
机构
[1] NTT Opto-electronics Laboratories, Atsuei-shi, Kanagawa, 243-01, 3-1, Morinosato Wakamiya
关键词
D O I
10.1109/3.485394
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The paper describes the design of a super-structure-grating distributed Bragg reflector (SSG-DBR) laser for broad quasicontinuous wavelength tuning with stable single-mode operation. The phase distributions and the effective coupling coefficients of SSG's are optimized to obtain both broad tuning range and high mode selectivity. A computer-aided simulation of wavelength tuning, where the effects of the waveguide loss increase and inhomogenious gain spectrum are included, provides an optimum cavity structure and indicates the possibility of more than 70 nm quasicontinuous tuning in a 1.55 mu m InGaAsP-InP SSG-DBR laser. Experimental results for 34 nm quasicontinuous tuning with a properly designed device are also presented.
引用
收藏
页码:433 / 441
页数:9
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