The FemtoOptics Dispersion Wedge family offers two size choices to fine tune dispersion in an ultrafast optical system. Designed for a very broad wavelength range at near normal angle of incidence, two identical wedges can be used to compensate for dispersion and angular deviation. Pairs of ultrathin wedges allow fine, continuous tuning of GDD. These thin glass wedges can also be used for rough tuning of the Carrier Envelope Phase (CEP).
Dispersion fine tuning over a wide dynamic range
Broadband antireflection coating applied to front and back surfaces
The -M models include a mounted adapter that fits into any standard 1- or 0.5-in. mirror or lens holder
Features
Fine Tune Dispersion Over a Wide Dynamic Range
Because of the relatively small angle and large length of these optical wedges, dispersion can be finely tuned over a wide dynamic range. By using a pair of wedges, angular dispersion can be avoided. Popular applications include high harmonic generation, attosecond pulse generation, CEP (Carrier Envelope Phase) or applications using wedges in conjunction with high dispersion mirrors.
Pairs of ultra thin wedges allow fine, continuous tuning of the GDD. The extremely accurate GDD control enabled by thin glass wedges in conjunction with broadband dispersive mirrors
is indispensable for the generation and manipulation of sub-10 femtosecond pulses.
Special care and attention should be taken when handling these ultrathin optics. Any small mishap may bring irreparable harm to the wedge. Handle at your own risk.
Typical GDD for 23RQ12-02
Typical GDD vs material insertion for the 20 x 30 mm ultra thin wedges with 2° 48' wedge angle.
Typical GDD for 25RB12-01UF.AR2
Typical GDD vs material insertion for the 20 x 50 mm ultra thin wedges with 8° wedge angle.
Easy Mounting for Mounted Version
The mounted versions of the wedges fit easily into Newport's 1- or 0.5-in. diameter mirror mounts or lens holders. The wedges are offered with or without coating. A broadband antireflection coating minimizes insertion losses at near normal incidences. Additional insertion losses can be minimized using the wedges at Brewster's angle. The mounting example seen includes the 25RB12-01UF.AR2-M optical wedge in the U100-A2K
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