TY - CONF

T1 - Frequency-doubled diode laser for direct pumping of Ti:sapphire lasers

A1 - Müller,André

A1 - Jensen,Ole Bjarlin

A1 - Unterhuber,Angelika

A1 - Le,Tuan

A1 - Stingl,Andreas

A1 - Hasler,Karl-Heinz

A1 - Sumpf,Bernd

A1 - Erbert,Götz

A1 - Andersen,Peter E.

A1 - Petersen,Paul Michael

AU - Müller,André

AU - Jensen,Ole Bjarlin

AU - Unterhuber,Angelika

AU - Le,Tuan

AU - Stingl,Andreas

AU - Hasler,Karl-Heinz

AU - Sumpf,Bernd

AU - Erbert,Götz

AU - Andersen,Peter E.

AU - Petersen,Paul Michael

PB - S P I E - International Society for Optical Engineering

PY - 2012

Y1 - 2012

N2 - 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.

AB - 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.

KW - Diode lasers

KW - Frequency conversion

KW - Optical pumping

KW - Ti:sapphire lasers

KW - Ultrashort pulses

U2 - 10.1117/12.906403

DO - 10.1117/12.906403

JO - Proceedings of SPIE, the International Society for Optical Engineering

JF - Proceedings of SPIE, the International Society for Optical Engineering

SN - 1605-7422

VL - 8235

SP - 82351F

ER -