Resources Contact Us Home
Large signal three-level superfluorescent fiber sources

Image Number 4 for United States Patent #5185749.

There is disclosed a new superfluorescent source comprising a long fiber doped with a lasing material presenting three-level transitions, such as Erbium. Due to the ground state signal absorption present in three-level systems, the source of the present invention can achieve backward signal quantum efficiencies well in excess of the limit of 0.5 exhibited by four-level systems. The source can be used in a Sagnac interferometer which may comprise an optical isolator because of possible high feedback.

  Recently Added Patents
Enhanced telephony services
Compact ion accelerator source
Position-measuring device
Removable storage device and method for identifying drive letter of the removable storage device
One-dimensional metal nanostructures
Pharmaceutical treatment process using chitosan or derivative thereof
Method and apparatus for providing auto-completion of information
  Randomly Featured Patents
Apparatus and method for cleaning particulate matter and chemical contaminants from a hand
Back-up retention member drainage catheter
Flexible drive member attachment
Portable basketball rim testing device
Railroad coupler mount
Pyrido[2,3-d]pyrimidine and pyrimido[4,5-d]pyrimidine nucleosides
Power supply with low loss making current limitation
System and method for co-planar and nearly co-planar printed circuit board extension docking system
Maintaining state information on a client
Method of making a pressurized ball