Microscopic Image (IMAGE) Optica Caption Optical microscope image of the second order frequency translating add/drop filter designed by the researchers in Boston University and implemented using IMEC’s ISIPP50G active silicon photonics process Credit Hayk Gevorgyan Usage Restrictions N/A License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.