Multi-Functional Integrated Optics Chip (MIOC) is the key fiber optical device used in close loop Interference Fiber Optic Gyroscope (IFOG). It includes a linear polarizer, acts aspolarizer and depolarizer; a Y-branch waveguide, acts as optical power splitter and combiner; and two pairs of push-pull electrode function as electro-optic phase modulator. It can be used in close loop IFOG to realize the high performance of high sensitivity, wide dynamic range, and high output linearity.
The design and process of MIOC is optimized for IFOG, with high reliability, low insertion loss, high polarization extinction ratio. Micro-electronic and micro-optical processes, and fiber pigtail precision alignment are taken in the MIOC. Recommend operating wavelength range is 1550nm. Other wavelength band or package type can also be customized.

The typical length of MIOC (Multi-functional Integrated Optics Chip) is 40mm/45mm. It is original designed for 1D and 3D IFOG, with very low scalar factor asymmetry, typically, few ppm. The IFOG performance, such as Bias instability and repeatability, Angular Random Walk, and Scale Factor Linearity can be improved, especially cooperating with PANWOO PMFS, SLD, and PINFET.

Applications

• Fiber Optic Gyroscope (FOG)
• Fiber Optic Current Transformer (FOCT)
• Other Fiber Optic Sensing

Features

• Low Insertion Loss
• High Polarization Extinction Ratio
• Small Temperature Dependent Loss
• High Electro-optic Phase Modulation Linearity
• High Reliability