This study conducted extensive reliability and stability tests on a fully packaged 1x12 silicon photonic MEMS switch. The switch underwent optical and electrical packaging, including electrostatic discharge (ESD) protection. Durability tests, such as endurance and hysteresis tests, were performed to assess the switch's stability with billions of cycles. Optomechanical stability was evaluated through long-term measurements of optical output powers in single-cast and multi-cast scenarios. High-speed data transmission tests and eye diagram analysis were conducted to evaluate signal integrity. This research provides valuable insights into the reliability of fully packaged silicon photonic MEMS devices and contributes to the advancement and wider adoption of this technology for commercial applications.

In our study, we used micro-glass tube resonance to measure changes in viscoelasticity during the phase transitions of liquid crystals, an intermediate state between solid and liquid. By heating and stretching glass tubes into a hollow state and inducing resonance, we detected inherent frequencies influenced by tube dimensions and sample properties. Using sucrose water and room-temperature liquid crystal (MBBA) as samples, we tracked changes in viscoelasticity with different temperatures. We observed a linear decrease in inherent frequency with increasing sucrose water concentration. Additionally, we detected viscoelastic changes in MBBA around its phase transition temperature.

We present the results of an adaptive optics system used to observe an object through the water surface. To be compact the system was composed of two refractive wavefront modulators mounted in stack configuration. One of the devices is a novel concept of tip/tilt refractive wavefront corrector. The second one is a deformable lens for correcting aberrations up to the 4th order. The two devices were driven using a Shack Hartmann wavefront sensor and a far field camera. The system was designed to be compact (about 15cm x 30cm) and was mounted in a sealed container placed below the surface in a water tank at NRL lab. The results show that the system was able to correct the wavefront with moderate waves amplitude. The simultaneous correction of tilt and high order aberrations demonstrated to be more efficient for the higher waves level.

poLight ASA will present the technical device structure of the commercial piezo MEMS tunable optics technology, and the high-level processes used to manufacture the optical components. Its hybrid processes combine MEMS process as well as advanced optomechanical packaging techniques, fully automated assembly manufacturing and testing that is well adapted for high volume production. The unique optical, focusing and optoelectronic performances of the tunable lens technology will be reviewed as well as the integration capabilities and associated design guidelines for multitude of camera modules/lens reference designs for mobile/consumer, industrial and medical imaging applications.

Publisher's Note: This conference presentation, originally published on 13 March 2024, was withdrawn on 25 March 2024 per author request.

Publisher's Note: This conference presentation, originally published on 13 March 2024, was withdrawn on 19 March 2024 per author request.

Publisher's Note: This conference presentation, originally published on 13 March 2024, was withdrawn on 25 March 2024 per author request.

We present an implantable probe utilizing single-pixel confocal microscopy based on a scanning micro- mirror for one-photon brain imaging. Addressing the specific needs of expansive fields of view (FOV) and extended working distances, this multi-wavelength, multi-modal probe achieves a subcellular resolution of 1.5 µm within a FOV of roughly 500 μm and a working distance of 250 μm. Our design integrates off- the-shelf optics with the cost-efficiency of inexpensive 3D printing, offering an affordable and effective imaging tool. A customized oval-shaped electrostatic mirror enhances the imaging capability. Validation, using wavelengths of 445, 515, and 561 nm on both microbeads and Brainbow mice specimens, emphasizes the probe's potential for advancing one-photon brain imaging techniques in freely moving animals. The economic and accessible nature of this tool holds promise for broader applications in neuroscience research.