Thin Film Polarizers For Ultrashort Pulses

These thin film polarizers have been designed to provide superior performance in ultrafast Ti:Sapphire regenerative amplifiers. While pulse lengths are relatively long in these amplifiers, pulse dispersion is still a concern if pulse width is to be maintained in the recompressed pulse. Multiple round trips in the amplifier have a multiplying effect on the dispersive characteristics of any optic in the cavity. For this reason, substantial effort has been made in designing and testing these polarizers for minimum pulse dispersion.

Minimum pulse dispersion
Ultra broadband or high extinction versions
Low wavefront distortion

See All Features

	Compare	Description	Compatibility	Drawings, CAD & Specs	Avail.	Price
		11B00UP.25 Thin Film Polarizers for Ultrashort PulsesThin Film Polarizer, Ultrafast, 14.3 x 28.6 mm, Rs>80%, 700-900 nm	UNIVERSAL			$763
		11B00UP.26 Thin Film Polarizers for Ultrashort PulsesThin Film Polarizer, Ultrafast, 14.3 x28.6 mm, Rs>99%, 785-815 nm	UNIVERSAL			$874

Specifications

Features

Angular Tuning

Thin film polarizers are designed to transmit p-polarized light and reflect s-polarized light. This transmission and reflection is greatest at the angle of incidence – in this case, 70°±2°. Because of the angle tolerance, fine adjustments of the polarizer's position (angular tuning) around the angle of incidence when setting up your experiment may be required to realize optimal polarization performance.

Mounting Options

These rectangular polarizers can be mounted to a verity of our mounts such as UGP-1, M1-RQ, or CYM-2R. For applications that require angular tuning for maximized transmission, we recommend our UGP-1 Three-Axis Optic Tilt Mount, which delivers high precision yaw adjustment over a range of ±5º.

Ideal for Ultrafast

These coatings, which are carefully placed on Grade A N-BK7 substrates that produce minimal wavefront distortion, have been specially designed to minimize pulse dispersion in ultrafast Ti:Sapphire regenerative amplifiers. Additionally, these polarizers offer damage thresholds up to 3 J/cm² pulsed.

Spectra-Physics Spitfire® Ace™: the most technically advanced Ti:Sapphire regenerative amplifier commercially available.

UP.25 Coating

Our UP.25 coating provides maximum bandwidth and laser damage resistance. The UP.25 coating has a bandwidth of 700–900 nm and a polarization extinction of 5:1. This design also tends to support higher laser energy density.

UP.26 Coating

Our UP.26 coating provides maximum polarization extinction. The UP.26 coating features a polarization extinction of 95:1 over a bandwidth of 785 to 815 nm.