Title :
1-μm and 1.3-μm femtosecond lasers mode-locked using quantum-dot-based saturable absorbers
Author :
Lagatsky, A.A. ; Bain, F. ; Livshits, D.A. ; Zhukov, A.E. ; Ustinov, V.M. ; Brown, C.T.A. ; Rafailov, E.U. ; Sibbett, W.
Author_Institution :
Univ. of St. Andrews, St. Andrews
Abstract :
We report on the generation of femtosecond pulses in the 1-μm and 1.3-μm spectral regions from Yb:KYW and Cr:forsterite lasers, respectively, where InAs/InGaAs quantum dot based saturable absorber mirrors (QD-SAMs) have been utilised. For the experimental observations reported here, cw Yb:KYW and Cr:forsterite lasers pumped by a tapered 980nm laser diode and a Nd:YVO4 laser at 1064nm, respectively, were constructed and evaluated. Highly asymmetric Z-fold laser cavities were configured for both laser systems. During continuous wave operation the Yb:KYW laser produced an output power of 2W (3.5W incident power) at 1047nm and 250mW of average power (6W incident power) was generated by Cr:forsterite laser at 1270nm.
Keywords :
chromium; gallium arsenide; high-speed optical techniques; indium compounds; laser beams; laser cavity resonators; laser mode locking; magnesium compounds; optical saturable absorption; potassium compounds; semiconductor quantum dots; ytterbium; Cr:forsterite lasers; InAs-InGaAs; KYbWO4:Yb; Mg2SiO4:Cr; Yb:KYW lasers; continuous wave operation; femtosecond lasers; highly asymmetric Z-fold laser cavities; laser mode-locking; power 2 W; power 250 mW; power 3.5 W; power 6 W; quantum-dot-based saturable absorbers; wavelength 1 μm; wavelength 1.3 μm; wavelength 1047 nm; wavelength 1064 nm; wavelength 1270 nm; wavelength 980 nm; Diode lasers; Indium gallium arsenide; Laser excitation; Laser mode locking; Mirrors; Optical pulse generation; Power generation; Power lasers; Pump lasers; Quantum dot lasers;
Conference_Titel :
Lasers and Electro-Optics, 2007 and the International Quantum Electronics Conference. CLEOE-IQEC 2007. European Conference on
Conference_Location :
Munich
Print_ISBN :
978-1-4244-0930-3
Electronic_ISBN :
978-1-4244-0931-0
DOI :
10.1109/CLEOE-IQEC.2007.4385872
