DIODE-LASERS IN EXTERNAL CAVITIES WITH FREQUENCY-SHIFTED FEEDBACK

被引：32

作者：

RICHTER, PI ^{[1
]}

HANSCH, TW ^{[1
]}

机构：

[1] MAX PLANCK INST QUANTUM OPT,W-8046 GARCHING,GERMANY

来源：

OPTICS COMMUNICATIONS | 1991年 / 85卷 / 5-6期

关键词：

D O I：

10.1016/0030-4018(91)90574-W

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We have investigated the spectral broadening of diode lasers in an external linear cavity with frequency-shifted feedback. With an 850 nm infrared diode of 30 MHz free running bandwidth, we observe a feedback level dependent frequency shift and continuous line broadening up to 5 GHz. A 660 nm visible laser diode exhibits a symmetric broadening enhanced by relaxation oscillations and, at large feedback levels, multimode operation over a bandwidth up to 1 THz, tunable over 3.1 THz (44 angstrom). In each case, the acousto-optic frequency shifter prevents constructive interference of successive roundtrips inside the external cavity and thus the build-up of a discrete axial mode spectrum.

引用

页码：414 / 418

页数：5

共 14 条

[1] NONCOLLINEAR ACOUSTOOPTIC FILTER WITH LARGE ANGULAR APERTURE [J].