Abstract
We describe a simple approach to dispersion-free optical delay line design that provides very low aberration over an extended delay range. In this approach, we minimize aberrations by directing non-axial beam displacements along a line of symmetry built into the apparatus. We show improved performance and significant reduction of wavefront aberrations by comparing simulation and experimental results with a similar delay line that lacks this line of symmetry. The new design facilitates transform-limited recovery of spectral resolution in Fourier transform coherent anti-Stokes Raman scattering, and accordingly, we demonstrate $3.5\;{{\rm cm}^{- 1}}$ spectral resolution with a 10 ps delay scan range.
© 2020 Optical Society of America
Full Article | PDF ArticleMore Like This
Sunil Dahiya, Mehra S. Sidhu, Akansha Tyagi, Ankur Mandal, Biplob Nandy, Jan M. Rost, Thomas Pfeifer, and Kamal P. Singh
Opt. Lett. 45(18) 5266-5269 (2020)
Mohammed S. Alshaykh, Chien-Sheng Liao, Oscar E. Sandoval, Gregory Gitzinger, Nicolas Forget, Daniel E. Leaird, Ji-Xin Cheng, and Andrew M. Weiner
Opt. Lett. 42(8) 1548-1551 (2017)
Haoyuan Li, Yanwen Sun, Mark Sutton, Paul Fuoss, and Diling Zhu
Opt. Lett. 45(7) 2086-2089 (2020)