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Opt Express. 2010 Nov 8;18(23):24085-91. doi: 10.1364/OE.18.024085.

A sub-100 fs self-starting Cr:forsterite laser generating 1.4 W output power.

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Graduate Institute of Photonics and Optoelectronics and Department of Electrical Engineering, Natl. Taiwan University, Taipei 10617, Taiwan.


Without cavity dumping or external amplification, we report a femtosecond Cr:forsterite laser with a 1.4 W output power and 2 W in continuous wave (CW) operated with a crystal temperature of 267 K. In the femtosecond regime, the oscillator generates Kerr-lens-mode-locked 84 fs pulses with a repetition rate of 85 MHz, corresponding to a high 16.5 nJ pulse energy directly from a single Cr:forsterite resonator. This intense femtosecond Cr:forsterite laser is ideal to pump varieties of high power fiber light sources and could be thus ideal for many biological and spectroscopy applications.

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