论文信息 - High performance Ti:Sa amplifier for 10PW front-end system

High performance Ti:Sa amplifier for 10PW front-end system

Introduction A new front-end system has been developed in phase I of the Vulcan 10 PW OPCPA project . This new front-end system has been tested and characterized. It is demonstrated that an amplified spectral band width of >100 nm FWHM was obtained at the output energy of ~0.4 J. This amplified pulse was compressed down to <30 fs. However, the preliminary measurement using a commercial third-order auto-correlator (SEQUOIA) shows that the pulse contrast is only 107 . This value is much lower than the required specification. This is the critical and key issue to be addressed in phase I of the Vulcan 10 PW OPCPA project.

[1] P. Matousek,et al. 10 PW front-end characterisation , 2009 .

[2] Pavel Matousek,et al. Development of the Joule level amplification stage for the Phase 1 of the Vulcan 10 PW OPCPA project , 2008 .

[3] P. Matousek,et al. Optical parametric chirped-pulse amplification source suitable for seeding high-energy systems. , 2008, Optics letters.

[4] John L. Collier. The Vulcan 10 PW OPCPA Project , 2011, CLEO 2011.

[5] Klaus Ertel,et al. ASE suppression in a high energy Titanium sapphire amplifier. , 2008, Optics express.

[6] P. Matousek,et al. Novel ultra-fast broadband laser source at 910nm for Vulcan 10 PW OPCPA laser system , 2008, 2008 Conference on Lasers and Electro-Optics and 2008 Conference on Quantum Electronics and Laser Science.