Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
Verification of computer-executable code generated from a model
Controlling transmission resources in mobile radio systems with dualtransfer mode
Permeable pressure sensitive adhesive
Systems and methods for cryopreservation of cells
System and method for selecting a video encoding format based on feedback data
Image playback device and method and electronic camera with image playback function
Semiconductor element-embedded wiring substrate
  Randomly Featured Patents
UV-curable epoxysilicone-polyether block copolymers
Shoe upper
Method and system of loop transmission
Baling machine with improved platen drive and guide assembly
Z-fold pressure seal with side opening envelope
Polarization controlled map matcher missile guidance system
Optical device for use with a slit lamp biomicroscope
Method and device for processing documents and recording medium
Image reading apparatus
Combination laminating tool