Linear optical amplifier

Details Linear optical amplifier Linear optical amplifier

1994-07-08

1995-12-05

Hellner, Mark

Optical: systems and elements

Optical amplifier

359244, H01S 3102, G02F 1015

Patent

active

054734673

ABSTRACT:
An optical amplifier includes a photodetector such as a photodiode for receiving an optical input signal to be amplified. An electro-absorption modulator is responsive to a photocurrent generated by the photodetector such that the modulator absorbs a portion of an optical beam transmitted therethrough in an amount proportional to an amplified replica of the photocurrent. The remaining portion of the beam transmitted through the modulator forms a signal that is an inverted, amplified replica of the input signal.

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patent: 5134358 (1992-07-01), Agiman
patent: 5166553 (1992-11-01), Kotera et al.
Physics of Semiconductor Devices, S. M. Sze, Wiley, N.Y., 2nd ed. 1981, p. 322.
"The Quantum Well Self-Electrooptic Effect Device: Optoelectronic Bistability and Oscillation, and Self-Linearized Modulation", IEEE Journal of Quantum Electronics, D. A. B. Miller, vol. QE-21, No. 9 Sep. 1985, pp. 1462-1476.
IEEE Journal of Quantum Electronics, L. A. D'Asaro et al., vol. 29 No. 2, Feb. 1993, pp. 678-698.
"Novel Analog Self-Electrooptic-Effect Devices", IEEE Journal of Quantum Electronics, D. A. B. Miller, vol. 29, No. 2, Feb. 1993, pp. 678-698.
Co-pending U.S. patent application Ser. No. 08/272,161 filed Jul. 7, 1994, "Current Mirror In Depletion-Mode Field Effect Transmission With Level Shifting," (D A. B. Miller Case 49).
Co-pending U.S. patent application Ser. No. 08/272,083, filed Jul. 8, 1994, "Apparatus for Converting Optical Bipolar Signals To Optical Unipolar Signals", (D. A. B. Miller Case 50).

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