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Method and apparatus for free-space optical communication without electro-optical conversion    
United States Patent6462847   
Link to this pagehttp://www.wikipatents.com/6462847.html
Inventor(s)Willebrand; Heinz (Longmont, CO)
AbstractErbium doped fiber amplifiers (ERDAS) optically couple optical signals between free-space and fiber optic links of a terrestrial optical communication network. The optical gain of transmitting and receiving ERDAs is controlled to achieve good optical signal communication. Control occurs in response to signals received at the transmitting and receiving ends of the links. Control, status and management information may be communicated optically between link head stations. The physical position of transceivers at opposite ends of the link optical signal paths is also controlled.



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Inventor     Willebrand; Heinz (Longmont, CO)
Owner/Assignee     LightPointe Communications, Inc. (San Diego, CA)
Patent assignment
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Publication Date     October 8, 2002
Application Number     09/823,175
PAIR File History     Application Data   Transaction History
Image File Wrapper   Patent Term   Fees
Litigation
Filing Date     March 29, 2001
US Classification     398/139
Int'l Classification     H04B 010/00
Examiner     Negash; Kinfe-Michael
Assistant Examiner    
Attorney/Law Firm     Fitch, Even, Tabin & Flannery
Address
Parent Case     CROSS-REFERENCE TO RELATED APPLICATIONS This patent application is a continuation of prior application Ser. No. 09/065,685, filed Apr. 24, 1998, now U.S. Pat. No. 6,239,888 B1, which is herby fully incorporated herein by reference in its entirety.
Priority Data    
USPTO Field of Search     359/152 359/118 359/172 359/173 359/145 359/179 359/159 359/341 356/56.2 356/56.3
Patent Tags     free-space optical communication without electro-optical conversion
   
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