Optical source and apparatus for remote sensing

Details Optical source and apparatus for remote sensing Optical source and apparatus for remote sensing

2011-03-15

2011-03-15

Hellner, Mark (Department: 3663)

Optical: systems and elements

Optical amplifier

C356S004100, C356S005010

Reexamination Certificate

active

07907333

ABSTRACT:
An optical amplifier is configured to amplify an injected seed optical pulse. The optical amplifier may include two or more gain sections coupled to form a continuous solid waveguide along a primary optical path. Each gain section may include: (i) an optical isolator forming an input to that gain section; (ii) a doped optical fiber having a first end coupled to the optical isolator and having a second end; (iii) a plurality of pump laser diodes; (iv) a controller providing drive signals to each of the plurality, the controller being configured to provide at least pulsed drive signals; and (v) an optical coupler having a first input port coupled to the second end, and a second input port coupled to the plurality and an output port.

REFERENCES:
patent: 5847817 (1998-12-01), Zediker et al.
patent: 6850487 (2005-02-01), Mukherjee et al.
patent: 2002/0075472 (2002-06-01), Holton
patent: 2007/0115541 (2007-05-01), Rogers et al.

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