| 摘要 |
<p>The present invention provides a fiber-optic rotation sensor comprising a coil of polarization-holding, single-mode optical fiber having a core with a non-circular cross-section defining two transverse orthogonal axes, the outer surface of said fiber having a non-circular cross-section with a predetermined geometric relationship to said orthogonal transverse axes, a laser source coupled to one end of said fiber for supplying said fiber with an optical signal having a fixed polarization plane, said non-circular outer surface of said fiber forming a reference surface for precisely aligning one of said transverse orthogonal axes of said-fiber core with said fixed polarization plane of the optical signal from said laser source.</p> |
