Methods and apparatus for swept-source optical coherence tomography
US8325419B2 · kind B2 · utility
80Cited by
27References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 18, 2011 |
| Grant date | Dec 4, 2012 |
| Priority date | — |
| Expiry date | May 4, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/5036
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In one embodiment of the invention, a semiconductor optical amplifier (SOA) in a laser ring is chosen to provide low polarization-dependent gain (PDG) and a booster semiconductor optical amplifier, outside of the ring, is chosen to provide high polarization-dependent gain. The use of a semiconductor optical amplifier with low polarization-dependent gain nearly eliminates variations in the polarization state of the light at the output of the laser, but does not eliminate the intra-sweep variations in the polarization state at the output of the laser, which can degrade the performance of the SS-OCT system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.