Apparatus and method for reception of optical burst

Details Apparatus and method for reception of optical burst Apparatus and method for reception of optical burst

1998-03-20

2000-09-05

Chan, Jason

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359125, H04B 106, H04B 1006

Patent

active

061151637

ABSTRACT:
An office-side optical burst receiving apparatus in for example an optical PON transmission system which solves the problem of reception failure due to a low frequency response, constituted by being provided with a pre-amplifier circuit for amplifying an output from a light receiving element, a main amplifier circuit for receiving the output signal thereof and a threshold value as differential inputs and discriminating logics "1" and "0", a threshold control circuit having a "1" level detection circuit and a "0" level detection circuit of the output signal, and a memory/calculation circuit for updating and storing the value regarding the level of the detected logic whenever a cell signal is received. It further contains an adder circuit which defines substantially a half value of a difference of levels of the logics "1" and "0" as a level value, adds the level of the logic "0" detected for the output signal now being received and the stored level, and applies the added value to the main amplifier circuit.

REFERENCES:
Su, C. et al "Theory of Burst-Mode Receiver and Its Applications in Optical Multiaccess Networks", Journal of Lightwave Technology, vol. 15, No. 4, Apr. 1997.
Eldering, C. A. "Theoretical Determination of Sensitivity Penelty of Burst Mode Fiber Optic Receivers", Journal of Lightwave Technology, vol. 11, No. 12, Dec. 1993.
Van der Plas, G., "APON: An ATM-based FITL system," paper presented at EFOC & N '93, the Eleventh Annual Conference, The Hague, Jun. 30-Jul. 2, 1993, pp. 91-95.

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