Sketch of an interferometric setup to generate pulses with adjustable temporal polarization. The linearly polarized output of a pulsed laser is split into two orthogonally-polarized beams, E_x(t) and E_y(t), by a Wollaston prism (WP). The y-polarized beam travels a distance L through a dispersive medium (DM), and is then recombined with the pulse in the upper arm by a 50:50 beam splitter (BS) to produce the output pulse E(t). M₁ and M₂ are mirrors. The upper arm contains a variable free-space time delay.