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Ultra Broadband fs laser optics

Ultra Broadband Femtosecond Laser Optics (Bandwidth ∼ one octave)

The coatings shown here are calculated for the wavelength of one octave (either 440 – 880 nm or 550 – 1100 nm). Similar coatings are possible for intermediate wavelength ranges.
Centre wavelength, bandwidth, GDD and reflectance of output couplers and beam splitters according to customer specification
Spectral tolerance 1% of centre wavelength
LIDT ∼ 0.1 J/cm²
In-house design calculation and GDD measurement capabilities

Figure 1: Reflectance (a) and GDD (b) spectra of an ultra broadband negative dispersion laser mirror pair

Mirror pairs designed by LAYERTEC show a very smooth average GDD spectrum, although the single broadband mirrors exhibit strong GDD oscillations.

Figure 2: Reflectance (a) and GDD (b) spectra of an ultra broadband negative dispersion pump mirror pair

Figure 3: Reflectance (a) and GDD (b) spectra of an ultra broadband turning mirror pair for p-polarized light

Figure 4: Reflectance (a) and GDD (b) spectra of an ultra broadband output coupler with R = 85 ±3 %

Figure 5: Reflectance (a) and GDD (b) spectra of an ultra broadband beamsplitter for p - polarized light with Rp = 50 ± 4 %