Carrier-envelope-phase stabilization via dual wavelength pumping.

Area of Science:

• Laser Physics
• Quantum Optics
• Materials Science

Background:

• Carrier-envelope-phase (CEP) stabilization is crucial for precision laser applications.
• Previous methods for CEP stabilization often face limitations in power scalability.
• Yb:YAG lasers offer potential for high-power operation but require effective stabilization techniques.

Purpose of the Study:

• To present a novel, power-scalable concept for carrier-envelope-phase stabilization.
• To demonstrate the implementation of this concept in a high-power laser system.
• To evaluate the performance of the new stabilization method compared to existing techniques.

Main Methods:

• Simultaneous pumping of the zero- and first-phonon absorption lines of Ytterbium-doped Yttrium Aluminum Garnet (Yb:YAG) at 969 nm and 940 nm.
• Implementation of the concept in a 45 W average power Kerr-lens mode-locked thin-disk oscillator.
• Comparison of lock performance with previous cavity loss modulation methods.

Main Results:

• Successful implementation of a power-scalable carrier-envelope-phase stabilization concept.
• Demonstration of stable carrier-envelope-offset frequency locking in a high-power (45 W) laser.
• Quantifiable comparison of the new method's performance against cavity loss modulation.

Conclusions:

• The presented simultaneous pumping scheme offers a power-scalable solution for CEP stabilization.
• This technique enables robust phase locking in high-power ultrafast laser systems.
• The new method shows promise for advancing applications requiring precise control of laser phase.