MIOC-1550-PG

Multi-function Integrated Optical Chip (MIOC), Low Drive

The multi-function Integrated Optical Chip (MIOC) is the key component in many fiber optic sensing solutions, i.e., Interferometric Fiber
Optic Gyroscope (IFOG) for measuring the angular velocity of an inertial navigation system and the Optic Current Sensor (FOCS) for measuring
electric current in power systems.The MIOC consists of a polarizer, a Y-junction coupler, and dual electro optical phase modulators. It is often fabricated on an X-cut single-crystal lithium niobate (LiNbO3) wafer. We use the Annealed Proton Exchange (APE) process to fabricate the optical waveguide of an MIOC along the Y direction of the crystal structure. Featuring over 60 dB Polarization Extinction Ratio (PER) and highly reliable chip-fiber coupling, our MIOC product can minimize bias drift resulting from polarization crosstalk-induced non-reciprocity. Our MIOC products are also qualified for operation in a wide temperature range.