Optical: systems and elements – Deflection using a moving element – Using a periodically moving element
Patent
1996-08-15
1998-08-11
Bovernick, Rodney B.
Optical: systems and elements
Deflection using a moving element
Using a periodically moving element
H04B 1016
Patent
active
057935130
ABSTRACT:
The invented method and devices address signal regeneration and all-optical switching in optical fiber transmission lines. In modern optical networks, after several stages of optical amplification, the noise accumulation requires regeneration e.g. translation to electronic domain. A new type of optical repeater and optical switch are suggested to perform regeneration and switching on the optical level. The main component of the devices is an optical cavity implanted into a section of the optical fiber and bounded by fiber gratings. In the optical repeater, the fiber cavity is nonlinear; at resonant frequency, the cavity almost totally rejects the noise and transmits the signal. In the optical switch, the fiber cavity is linear; depending on the cavity tuning, the signal may be transmitted through the cavity or reflected and redirected to an appropriate switch port.
REFERENCES:
patent: 4772854 (1988-09-01), Silberberg
patent: 4947134 (1990-08-01), Olsson
patent: 4971417 (1990-11-01), Krinsky et al.
patent: 5111153 (1992-05-01), O'Mahony et al.
Bovernick Rodney B.
Fishman Bella
The Board of Trustees of Leland Stanford Junior University
Wise Robert E.
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