Frequency-doubled diode laser for direct pumping of Ti:sapphire lasers

Publication: Research - peer-reviewConference article – Annual report year: 2012

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A single-pass frequency doubled high-power tapered diode laser emitting nearly 1.3 W of green light suitable for direct pumping of Ti:sapphire lasers generating ultrashort pulses is demonstrated. The pump efficiencies reached 75 % of the values achieved with a commercial solid-state pump laser. However, the superior electro-optical efficiency of the diode laser improves the overall efficiency of the Ti:sapphire laser by a factor > 2. The optical spectrum emitted by the Ti:sapphire laser shows a spectral width of 112 nm (FWHM). Based on autocorrelation measurements, pulse widths of less than 20 fs are measured. These results open the opportunity of establishing diode laser pumped Ti:sapphire lasers for e.g. biophotonic applications like retinal optical coherence tomography or pumping of photonic crystal fibers for CARS microscopy.
Original languageEnglish
JournalProceedings of SPIE, the International Society for Optical Engineering
Publication date2012
Volume8235
Pages82351F
ISSN0277-786X
DOIs
StatePublished

Conference

ConferenceSPIE Photonics West : Solid State Lasers XXI: Technology and Devices
CountryUnited States
CitySan Francisco, CA
Period23/01/1226/01/12
CitationsWeb of Science® Times Cited: 0

Keywords

  • Diode lasers, Frequency conversion, Optical pumping, Ti:sapphire lasers, Ultrashort pulses
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