An alternative fiber-based method of supercontinuum generation for transient absorption spectroscopy

Author

Kho, Julie ; Rohde, Charles A. ; Vanholsbeeck, Frédérique ; Boyd, Peter W. ; Simpson, M. Cather

fYear

2011

fDate

Aug. 28 2011-Sept. 1 2011

Firstpage

429

Lastpage

431

Abstract

A novel high power, broad bandwidth (450-1750nm) probe laser has been successfully constructed and characterized for transient absorption spectroscopy. Supercontinuum pulses are generated using a nanosecond pulsed Q-switched Nd:YAG laser (1064nm, 7 ns, 20 Hz) in 15m photonic crystal fibers. High spectral quality and stable output power have been reported using this technique. The supercontinuum saturates at pulse powers of 100μW (5 μJ/pulse; 700 W pulse power).

Keywords

Q-switching; fibre lasers; holey fibres; laser stability; optical pulse generation; photonic crystals; supercontinuum generation; fiber-based method; frequency 20 Hz; high power broad bandwidth probe laser; nanosecond pulsed Q-switched Nd:YAG laser; photonic crystal fibers; power 100 muW; power 700 W; pulse powers; size 15 m; spectral quality; stable output power; supercontinuum generation; supercontinuum saturation; transient absorption spectroscopy; wavelength 450 nm to 1750 nm; Absorption; Fiber lasers; Laser excitation; Pump lasers; Spectroscopy; Supercontinuum generation; Transient analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Quantum Electronics Conference & Lasers and Electro-Optics (CLEO/IQEC/PACIFIC RIM), 2011

Conference_Location

Sydney, NSW

Print_ISBN

978-1-4577-1939-4

Type

conf

DOI

10.1109/IQEC-CLEO.2011.6193931

Filename

6193931