Ray-tracing model for the stretching calculation of the new type of aberration-free stretcher

Shenghong Huang; Jintao Bai; Xun Hou

doi:10.1117/12.481815

5 September 2002 Ray-tracing model for the stretching calculation of the new type of aberration-free stretcher

Shenghong Huang, Jintao Bai, Xun Hou

Proceedings Volume 4914, High-Power Lasers and Applications II; (2002) https://doi.org/10.1117/12.481815
Event: Photonics Asia, 2002, Shanghai, China

Abstract

Chirped pulse amplification(CPA) has become a common technique for the generation of ultrashort and high peak power femtosecond(fs) optical pulses. One key point of this technique is the reasonable design for the pulse stretcher. We improved the aberration—free stretcher replacing the two spherical mirrors with two concentric rectangular focused cylindrical ones. The first mirror is convex, and the second one concave. Their radius of curvature ratio is two and of opposite sign. This combination cancels spherical aberration and astigmatism, and has no on-axis coma and exhibits no chromatic aberration. We calculated the group velocity dispersion(GVD) of the stretcher by ray-tracing model. Supposing that the distance between the grating and the center of curvature is a variable 1, we obtained the variety of the group delay and the GVD of the stretcher with the parameter 1 and the incidence wavelength A .For the input pulse, let pulsewidth to 9.8fs , the initial chirp C=O.75, the distance l=O.lm, we gained GVD was 2.5fs2/jm for the center wavelength 790nm, the stretching factor was 90197.4, that is, the seed pulse(9.8fs in duration) can be stretched to 884 PS

Citation Download Citation

Shenghong Huang, Jintao Bai, and Xun Hou "Ray-tracing model for the stretching calculation of the new type of aberration-free stretcher", Proc. SPIE 4914, High-Power Lasers and Applications II, (5 September 2002); https://doi.org/10.1117/12.481815

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available