Valeria DasilvaNewark, NJ
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Us Patents
Fiber Amplifier Cascade For Multiwavelength Lightwave Communications System
US Patent:
5345332, Sep 6, 1994
Filed:
May 3, 1993
Appl. No.:
8/056098
Inventors:
Valeria L. daSilva - Tinton Falls NJ
Lars E. Eskildsen - Atlantic Highlands NJ
Evan L. Goldstein - Princeton NJ
Yaron Silberberg - West Windsor Township, Mercer County NJ
Lars E. Eskildsen - Atlantic Highlands NJ
Evan L. Goldstein - Princeton NJ
Yaron Silberberg - West Windsor Township, Mercer County NJ
Assignee:
Bell Communications Research, Inc. - Livingston NJ
International Classification:
H01S 330
US Classification:
359341
Abstract:
In a multiwavelength lightwave communications system channel-by-channel power regulation is achieved with a cascade of inhomogeneously broadened saturated fiber amplifiers spaced along the optical fiber transmission path. In the described embodiment, inhomogeneous broadening is achieved by immersing each of the erbiumdoped fiber amplifiers in the cascade in a bath of liquid nitrogen, thereby cooling each amplifier to approximately 77 K.
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