Non-resonant wavelength modulation saturation spectroscopy in acetylene-filled hollow-core photonic bandgap fibres applied to modulation-free laser diode stabilisation

被引：3

作者：

Pineda-Vadillo, Pablo ^{[1
]}

Lynch, Michael ^{[1
]}

Charlton, Christy ^{[1
]}

Donegan, John F. ^{[1
]}

Weldon, Vincent ^{[1
]}

机构：

[1] Trinity Coll Dublin, Sch Phys, Semicond Photon Grp, Dublin, Ireland

来源：

OPTICS EXPRESS | 2009年 / 17卷 / 25期

关键词：

ELECTROMAGNETICALLY-INDUCED TRANSPARENCY; FREQUENCY ATLAS; GAS; ABSORPTION; STANDARD;

D O I：

10.1364/OE.17.023309

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this paper the application of Wavelength Modulation (WM) techniques to non-resonant saturation spectroscopy in acetylene-filled Hollow-Core Photonic Bandgap Fibres (HC-PBFs) and modulation-free Laser Diode (LD) frequency stabilisation is investigated. In the first part WM techniques are applied to non-resonant pump-probe saturation of acetylene overtone rotational transitions in a HC-PBF. A high-power DFB chip-on-carrier mounted LD is used in conjunction with a tuneable External Cavity Laser (ECL) and the main saturation parameters are characterized. In the second part a novel feedback system to stabilize the DFB emission wavelength based on the WM saturation results is implemented. Modulation-free locking of the DFB laser frequency to the narrow linewidth saturation feature is achieved for both constant and variable LD temperatures. (C) 2009 Optical Society of America

引用

页码：23309 / 23315

页数：7