Fiber-optic based remote receiver for laser interferometer systems
Patent 4784489 Issued on November 15, 1988. Estimated Expiration Date: 
April 29, 2007. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
April 29, 2007. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesMicrointerferometer transducer Patent #: 4153370 InventorsApplicationNo. 07/043906 filed on 04/29/1987US Classes:356/487PolarizationExaminersPrimary: Willis, Davis L.Assistant: Koren, Matthew W. Attorney, Agent or FirmInternational ClassesG01B 9/02 (20060101)G01J 9/02 (20060101) G01J 9/00 (20060101) AbstractA remote receiver for laser interferometer systems is split into two parts connected by a fiber optic link. The front-end of the receiver, located near the remote interferometer optics, houses only the optical components for focusing and mixing the laser beam, and transmits the beam through an optical fiber cable. The back-end of the receiver, located remotely, houses the electronic components for detecting and measuring the frequency difference to produce the signal for the measurement electronics. | |
