Optical multiplexer-demultiplexer and method of manufacturing same
Low-noise active fiber optical amplifier with pumping power reflector
Low noise high power optical fiber amplifier
Fiber optic amplifier
Optical amplifier with bent, single-mode active fiber Patent #: 5161050
ApplicationNo. 884343 filed on 05/18/1992
US Classes:372/23, Producing plural wavelength output372/22Frequency multiplying (e.g., harmonic generator)
ExaminersPrimary: Lee, John D.
Assistant: Wise, Robert E.
Attorney, Agent or Firm
Foreign Patent References
International ClassH01S 003/10
Foreign Application Priority Data1991-05-18 DE
AbstractAn optical system includes an optical amplifier having a laser active substance and a first laser that generates pump light at a first wavelength for the laser active substance, a second laser which generates light a second wavelength selected so that the light of the second wavelength can be amplified in the optical amplifiers, a first coupler for coupling the light of the second wavelength into the optical amplifier, a third laser which generates light at a third wavelength, and a second coupler for coupling light of the third wavelength into the optical amplifier. The wavelength of the light generated by the third laser is selected so that amplification of the light of the second wavelength on the basis of the pump light can be controlled as a function of the intensity of the light generated by the third laser.