Generation of coherent cw-terahertz radiation using a tunable dual-wavelength external cavity laser diode

被引：41

作者：

Gu, P

Chang, F

Tani, M

Sakai, K

Pan, CL

机构：

[1] MPT, Kansai Adv Res Ctr, Commun Res Lab, Nishi Ku, Kobe, Hyogo 6512401, Japan

[2] Natl Chiao Tung Univ, Inst Electroopt Engn, Hsinchu 30010, Taiwan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS | 1999年 / 38卷 / 11A期

关键词：

tunable dual-wavelength external cavity laser diode; tunable cw-THz radiation; LTG-GaAs; photomixing;

D O I：

10.1143/JJAP.38.L1246

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A tunable dual-wavelength external cavity laser diode (2-lambda-ECL) was used to generate tunable coherent cw-terahertz (THz) radiation by photomixing in a biased photoconductive antenna fabricated on a low-temperature-grown (LTG)-GaAs film. The 2-lambda-ECL oscillated at the two output modes simultaneously with a frequency separation from 250 GHz to 2.1 THz in the same cavity. We demonstrated that the frequency of the emitted THz radiation corresponded to the difference frequency between the two modes of the diode laser. The tunable 2-lambda-ECL, due to its compact design and ease of optical alignment, is a promising laser source for the generation of tunable cw-THz radiation by photomixing.

引用

收藏

页码：L1246 / L1248

页数：3

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