{
  "$type": "site.standard.document",
  "description": "Many optical gyroscopes are based on an optical Sagnac interferometer configuration including various interferometric fiber-optic gyroscopes (IFOG) to measure magnitude and direction of rotation. IFOGs require active phase modulation in their fiber coil to decipher direction of rotation. This…",
  "path": "/patents/1371195",
  "publishedAt": "2024-11-21T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G01C19/722",
    "Farhad Hakimi"
  ],
  "textContent": "Many optical gyroscopes are based on an optical Sagnac interferometer configuration including various interferometric fiber-optic gyroscopes (IFOG) to measure magnitude and direction of rotation. IFOGs require active phase modulation in their fiber coil to decipher direction of rotation. This patent document discloses a new type of IFOGs that utilizes a passive topological (also known as geometric) phase shift to sense magnitude and direction of rotation without requiring active phase modulation.",
  "title": "PASSIVE TOPOLOGICALLY BIASED SAGNAC INTERFEROMETER AS A ROTATIONAL SENSOR CAPABLE OF SENSING MAGNITUDE AND DIRECTION OF ROTATION"
}