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CEO/CEP stabilisation of Ti:sapphire femtosecond lasers without AOM

The carrier-envelope offset frequency and phase of a Ti:sapphire femtosecond laser can be stabilized by directly feeding back to the output power of a 532 nm finesse pure 10 Watt pump laser with CEP feature.

The performance with this approach matches that of traditional setups employing acousto-optic modulators in the pump beam (~100 mrad integrated phase noise) but has potential for massive improvement due to the enhanced available modulation bandwidth compared to AOMs (approximately 700 kHz versus tens of kHz).

What’s new

  • Laser Quantum Ltd

    Laser Quantum Celebrates its 20th Anniversary

    News | 1 Oct 2014

    Laser Quantum is delighted to be celebrating its 20th anniversary.  Since its formation in 1994 by PhD Physicists from the University of Manchester, Laser Quantum has developed into a successful company with over 100 staff in 3 offices in different countries, plus supported distributors in 36 others.

  • Laser Quantum Ltd

    Laser Quantum strengthens its position in the femtosecond laser market with the purchase of Venteon Laser Technologies GmbH

    News | 11 Sep 2014

    Laser Quantum is pleased to announce the recent acquisition of Venteon Laser Technologies GmbH, a world leading manufacturer of few-cycle, ultra-short pulse lasers.

  • Figure 2 Basic THz generation principle of the Tera-SED emitters

    TERA-Sed Emitters

    White papers | 5 Nov 2013

    The Laser Quantum Tera-SED is a device emitting intense terahertz (THz) radiation after excitation with a femtosecond (fs) laser pulse. It converts the light from the optical regime into the THz regime with a conversion efficiency of up to 2 x 10-3.

  • Figure 1 Energy level scheme of the NV centre

    Superresolution microscopy reaches 14 nm

    White papers | 5 Nov 2013

    The past decade has seen a growing interest in nitrogen vacancy colour centres (NV-centres) in diamond as prominent candidates for solid state quantum bits, single photon sources and even ultra-sensitive magnetic sensors.

  • Figure 1 A comparison of two femtosecond pulses with the corresponding electric field oscillations

    Shortest CEP stabilised Ti:Sapphire pulse

    White papers | 5 Nov 2013

    Abstract: A dual-output, self-synchronised, CEP-stabilised Ti:sapphire oscillator is presented, with a pulse duration of 4.4fs and a CEP phase noise of < 100 mrad using a Finesse 6 Pure pump laser.

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