VBGs for Quantum Optics
Spectral Filters
BragGrate™ SPC Filter is a reflecting Bragg grating (RBG) recorded in a bulk of photosensitive silicate glass. Its narrow spectral bandwidth allows for applications in Quantum Optics with bandwidths of 10, 25 and 50 GHz, in a spectral range between 600 and 2500 nm, while reaching efficiencies above 90%.
Specifications
- Standard Wavelengths: 780, 795, 852, 894 nm.
- Diffraction Efficiency (DE): >90%
- Spectral Bandwidth: 50 GHz, 25GHz or 10GHz
- Grating Thickness: 8 mm, 17.5 mm, 27.5 mm
- Operating Range λ: 600-2500 nm.
- Apertures: 7 x 5 mm to 9 x 6.5 mm
- Deflection Angles: 8 to 10 deg
Spectral shape of Filters with Bandwidth 25 GHz
Chirped Bragg Gratings for Qubits Control
Extremely Large Dispersion 800 ps2 enables effective and fast amplitude modulation. Spectral Range: 530-2500 nm; High Efficiency> 95%; Wavelength Tunable. PTR glass based highly dispersive CBGs enabled passively stable, efficient, method of fast amplitude modulation compatible for high power laser sources.
Specifications
Typical Specifications at 795 nm:
- Diffraction Efficiency (DE): >90%
- Spectral Bandwidth: 0.1 ± 0.03 nm
- Grating Thickness: 25 mm
- Aperture: 11.25 x 6.25 mm
- Input/ Output angles: 2.75 deg/ -2.75 deg
- Stretching time: 130 ps
Schematic Diagram of CBG deployment for Qubit Filtering and Control