Simple, low power microsystem for saturation spectroscopy
US8837540B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 14, 2011 |
| Grant date | Sep 16, 2014 |
| Priority date | — |
| Expiry date | Jan 31, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/1305
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A spectroscopic assembly is provided. The spectroscopic assembly includes a thermal isolation platform, a gas reference cell encasing a gas and attached to the thermal isolation platform, the gas reference cell having at least one optically-transparent window, and at least one heater configured to raise a temperature of the encased gas. When a beamsplitter is configured to reflect a portion of an input optical beam emitted by a laser to be incident on the at least one optically-transparent window of the gas reference cell, the reflected portion of the input optical beam is twice transmitted through the gas. When a detector is configured to receive the optical beam twice transmitted through the gas, a feedback signal is provided to the laser to stabilize the laser.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.