Abstract

A finite impulse response filter for processing gigahertz bandwidth electrical signals was built using optical components. The response function was significantly better than previous high bandwidth filters.

© 1990 Optical Society of America

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References

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  1. Crystal Technology, Inc., 1060 E. Meadow Circle, Palo Alto, CA 94303.
  2. C. A. Liechti, “High Speed Transistors: Directions for the 1990s,” Microwave J. 1989 State of the Art Reference 165–177 (1989).
  3. B. Moslehi, J. W. Goodman, M. Tur, H. J. Shaw, “Fiber-Optic Lattice Signal Processing,” Proc. IEEE 72, 909–930 (1984).
    [CrossRef]
  4. C.-E. Lee, R. A. Atkins, H. F. Taylor, “Reflectively Tapped Optical Fibre Transversal Filters,” Electron. Lett. 23, 596–598 (1987).
    [CrossRef]
  5. S. A. Pappert, “Ultra-Wideband Direction Finding Using Fiber Optic Transversal Filters,” Naval Ocean Systems Center Technical Report TR-1161 (1987).

1989 (1)

C. A. Liechti, “High Speed Transistors: Directions for the 1990s,” Microwave J. 1989 State of the Art Reference 165–177 (1989).

1987 (1)

C.-E. Lee, R. A. Atkins, H. F. Taylor, “Reflectively Tapped Optical Fibre Transversal Filters,” Electron. Lett. 23, 596–598 (1987).
[CrossRef]

1984 (1)

B. Moslehi, J. W. Goodman, M. Tur, H. J. Shaw, “Fiber-Optic Lattice Signal Processing,” Proc. IEEE 72, 909–930 (1984).
[CrossRef]

Atkins, R. A.

C.-E. Lee, R. A. Atkins, H. F. Taylor, “Reflectively Tapped Optical Fibre Transversal Filters,” Electron. Lett. 23, 596–598 (1987).
[CrossRef]

Goodman, J. W.

B. Moslehi, J. W. Goodman, M. Tur, H. J. Shaw, “Fiber-Optic Lattice Signal Processing,” Proc. IEEE 72, 909–930 (1984).
[CrossRef]

Lee, C.-E.

C.-E. Lee, R. A. Atkins, H. F. Taylor, “Reflectively Tapped Optical Fibre Transversal Filters,” Electron. Lett. 23, 596–598 (1987).
[CrossRef]

Liechti, C. A.

C. A. Liechti, “High Speed Transistors: Directions for the 1990s,” Microwave J. 1989 State of the Art Reference 165–177 (1989).

Moslehi, B.

B. Moslehi, J. W. Goodman, M. Tur, H. J. Shaw, “Fiber-Optic Lattice Signal Processing,” Proc. IEEE 72, 909–930 (1984).
[CrossRef]

Pappert, S. A.

S. A. Pappert, “Ultra-Wideband Direction Finding Using Fiber Optic Transversal Filters,” Naval Ocean Systems Center Technical Report TR-1161 (1987).

Shaw, H. J.

B. Moslehi, J. W. Goodman, M. Tur, H. J. Shaw, “Fiber-Optic Lattice Signal Processing,” Proc. IEEE 72, 909–930 (1984).
[CrossRef]

Taylor, H. F.

C.-E. Lee, R. A. Atkins, H. F. Taylor, “Reflectively Tapped Optical Fibre Transversal Filters,” Electron. Lett. 23, 596–598 (1987).
[CrossRef]

Tur, M.

B. Moslehi, J. W. Goodman, M. Tur, H. J. Shaw, “Fiber-Optic Lattice Signal Processing,” Proc. IEEE 72, 909–930 (1984).
[CrossRef]

Electron. Lett. (1)

C.-E. Lee, R. A. Atkins, H. F. Taylor, “Reflectively Tapped Optical Fibre Transversal Filters,” Electron. Lett. 23, 596–598 (1987).
[CrossRef]

Microwave J. (1)

C. A. Liechti, “High Speed Transistors: Directions for the 1990s,” Microwave J. 1989 State of the Art Reference 165–177 (1989).

Proc. IEEE (1)

B. Moslehi, J. W. Goodman, M. Tur, H. J. Shaw, “Fiber-Optic Lattice Signal Processing,” Proc. IEEE 72, 909–930 (1984).
[CrossRef]

Other (2)

S. A. Pappert, “Ultra-Wideband Direction Finding Using Fiber Optic Transversal Filters,” Naval Ocean Systems Center Technical Report TR-1161 (1987).

Crystal Technology, Inc., 1060 E. Meadow Circle, Palo Alto, CA 94303.

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Figures (3)

Fig. 1
Fig. 1

FIR filter design.

Fig. 2
Fig. 2

Frequency response of the three-tap filter (solid curve) and computer simulation (dotted curve).

Fig. 3
Fig. 3

Demonstration of null frequency shifting by varying the value of the center tap weight.

Equations (2)

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f s = c / ( n g · Δ l ) .
Y ( t ) = k = 0 N - 1 W k × X ( t - τ s k ) .

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