External cavity diode lasers with 5kHz linewidth and 200nm tuning range at 1.55μm and methods for linewidth measurement

被引：61

作者：

Bennetts, Shayne ^{[1
]}

McDonald, Gordon D. ^{[1
]}

Hardman, Kyle S. ^{[1
]}

Debs, John E. ^{[1
]}

Kuhn, Carlos C. N. ^{[1
]}

Close, John D. ^{[1
]}

Robins, Nicholas P. ^{[1
]}

机构：

[1] Australian Natl Univ, Dept Quantum Sci, Quantum Sensors & Atom Laser Grp, Canberra, ACT 0200, Australia

来源：

OPTICS EXPRESS | 2014年 / 22卷 / 09期

关键词：

NARROW-LINEWIDTH; FREQUENCY-NOISE; ATOMIC PHYSICS; FIBER LASERS; SEMICONDUCTOR-LASERS; PERFORMANCE; FEEDBACK; MANIPULATION; SYSTEM;

D O I：

10.1364/OE.22.010642

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Two simple external cavity diode laser designs using fibre pigtailed gain chips are tested and their properties compared with a high end DBR fibre laser. These ECDLs demonstrate a FWHM linewidth as low as 5.2kHz with a fitted Lorentzian FWHM linewidth as low as 1.6kHz. Tuning ranges of 200nm covering 1420nm to 1620nm were demonstrated. To the best of our knowledge these are the narrowest linewidth and most broadly tunable external cavity diode lasers reported to date. The improvement in linewidth is attributed to greatly enhanced acoustic isolation allowed by using fiber coupled gain chips and by replacing kinematic mounts with a pair of rotatable wedges for cavity alignment which eliminates acoustic resonances. A detailed description and discussion of techniques used to characterize the frequency noise and linewidths of these lasers is provided. (C) 2014 Optical Society of America

引用

页码：10642 / 10654

页数：13

共 37 条

[1] Interference-filter-stabilized external-cavity diode lasers [J].