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MICRO-CONTROLE / Spectra-Physics
Ultrafast Laser Chirped Mirrors

Ultrafast Laser Chirped Mirrors

Product catalog summary

Introduction
Ultrafast Chirped Mirrors are designed to compensate for pulse broadening effects when transmitting an ultrafast laser beam through optical components. These mirrors provide negative group velocity dispersion (GVD) with each bounce, allowing for effective compensation of pulse dispersion effects.

Specifications

Material: Fused Silica
Surface Flatness: S1 ≤ λ/4 at 632.8 nm over the clear aperture
Clear Aperture: ≥ central 78% of diameter
Surface Quality: 20-10 scratch-dig
Diameter Tolerance: +0/-0.13 mm
Thickness Tolerance: ±0.38 mm
Wedge: < 10 arc min
Chamfers: 0.25-0.76 mm face width x 45° ±15°
Angle of Incidence: 0° - 10°
S1 Coating: UF.40, Rs >99.8 %, 700–900 nm, Rp >99.8 %, 700–900 nm
S2 Coating: None
Durability: MIL-C-675C, moderate abrasion
Cleaning: Non-abrasive method, acetone or isopropyl alcohol on lens tissue recommended

Performance and Design
The mirrors are designed to reflect over 99.8% of light from 700 to 900 nm, making them ideal for use with Spectra-Physics Tsunami®, Spitfire® Pro, or Mai Tai® lasers. They are optimized for use with 20 fsec pulses and longer. The high reflectivity preserves laser beam intensity, and the mirrors can be mounted into Newport's patented clear quadrant mounts for optimal performance.

Graphical Data

Reflectance: Over 99.8% reflectance across the specified wavelength range.
GVD: Negative GVD is calculated and measured, showing effective compensation across the wavelength range.
Cubic Term: Calculated cubic term data is provided, indicating the phase expansion characteristics.

Catalog excerpts

614 O p t i c s Phone: 1-800-222-6440 • Fax: 1-949-253-1680 WINDOWS BEAMSPLITTERS OPTICAL FILTERS POLARIZATION OPTICS DIFFRACTION GRATINGS HIGH-ENERGY OPTICS ULTRAFAST LASER OPTICS ACCESSORIES When transmitting an ultrafast laser beam through a number of optical components, the pulse will spread and become chirped. The Ultrafast Chirped Mirrors are the solution to compensate for pulse broadening effects. These mirrors provide a negative group velocity dispersion to the incoming laser beam with every bounce off the surface. By setting up a two or three mirror configuration, the laser beam can bounce back and forth between the mirrors many times to compensate for pulse dispersion effects. Specifications Material Fused Silica Surface Flatness S1 ë/4 at 632.8 nm over the clear aperture Clear Aperture central 78% of diameter Surface Quality 20-10 scratch-dig Diameter Tolerance +0/-0.13 mm Thickness Tolerance ±0.38 mm Wedge < 10 arc min Chamfers 0.25-0.76 mm face width x 45° ±15° Angle of Incidence 0° - 10° S1 Coating UF.40, Rs >99.8 %, 700–900 nm, Rp >99.8 %, 700–900 nm S2 Coating None Durability MIL-C-675C, moderate abrasion Cleaning Non-abrasive method, acetone or isopropyl alcohol on lens tissue recommended (see page 622) C 10 arc min Wedge S1 S2 ø B ø A Dimension (mm) Model øA øB C 10Q20UF.40 25.4 20.0 6.00 Ordering Information Model Diameter (mm) Thickness (mm) 10Q20UF.40 25.4 6.00 Ultrafast Laser Chirped Mirrors NEW

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O p t i c s 615 Email: [email protected] • Web: newport.com WINDOWS BEAMSPLITTERS OPTICAL FILTERS POLARIZATION OPTICS DIFFRACTION GRATINGS HIGH-ENERGY OPTICS ULTRAFAST LASER OPTICS ACCESSORIES Clear Quadrant Design Small ‘d’ – Small Ø Conventional Design Large ‘d’ – Large Ø d d GVD and the Cubic Term Group velocity dispersion (GVD) and the cubic term of the phase expansion are shown for reference. True mirror performance can be affected by manufacturing tolerances and repeatability. Newport minimizes these effects with the use of state-of-the-art thin film production equipment and computer controlled...

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Ultrafast Laser Chirped Mirrors

Ultrafast Laser Chirped Mirrors

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