Lowering backward Raman and Brillouin scattering in waveguide Raman wavelength converters
Phan Huy et al. propose a simple and efficient solution to minimize Brillouin back-scattering in Raman wavelength converters by optimizing the fiber length.
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Lowering backward Raman and Brillouin scattering in waveguide Raman wavelength converters
Complementarity in single photon interference – the role of the mode function and vacuum fields
Menzel et al. investigate the transversal coherence of single signal photons generated via spontaneous parametric down conversion, to the analyze the role of the mode function in quantum optics regarding the complementarity principle.
Focusing characteristics of a 4π parabolic mirror light-matter interface
Alber et al. examine the focusing properties of a 4π parabolic mirror that was produced by single-point diamond turning. The results show that the mirror is suitable for an efficient light-matter interface.
Research on edge-control methods in CNC polishing
G. Yu et al. present a polishing method that is suitable for fast fabrication of large mirror segments (already applied in E-ELT prototypes), and other applications sensitive to edge mis-figure.
Solderjet bumping packaging technique optimization for the miniaturization of laser devices
P. Ribes-Pleguezuelo and colleagues present a solderjet bumping method that optimizes laser devices through the miniaturization of components and could robustly join components down to the laser emission beam size without strongly affecting the optical properties.
Design of fiber-integrated tunable thermo-optic C-band filter based on coated silicon slab
H. Pinhas and team present a tunable thermo-optic filtering device based on a coated silicon slab resonator that is suitable for wavelength switching systems and other optics communication devices.
Mechanical behavior study of laminate composite by three-color digital holography
M. Karray and colleagues present a method of real-time 3D deformation measurements based on three-color digital holography and simultaneous recording with a stack of photodiodes image sensor.
Gloss measurement in detection of surface quality of pharmaceutical tablets
On the SpringerOpen blog, Prince Bawuah and team present a handheld glossmeter based on a diffractive optical element to analyze the surface of pharmaceutical tablets. Using antimalarial drugs as a test, these simple and affordable devices can help detect counterfeit tablets and serve as a quality assurance tool for pharmaceutical production sites. Read the full study here.