Read e-book online Analog optical links PDF

By Cox III C.H.

ISBN-10: 0521621631

ISBN-13: 9780521621632

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Pappert, S. , Sun, C. , Zhu, J. , Liu, Y. Z. and Yu, P. K. L. 1996. Dual-function electroabsorption waveguide modulator/detector for optoelectronic transceiver applications, IEEE Photon. Technol. , 8, 1540–2. Yamamoto, Y. and Kimura, T. 1981. Coherent optical fiber transmission systems, IEEE J. , 17, 919–34. Yu, P. K. L. 1996. Optical receivers. In The Electronics Handbook, ed. J. C. Whitaker, Boca Raton, FL: CRC Press, Chapter 58. 1 Introduction In this chapter we develop the small-signal relationships between the RF and optical parameters for the most common electro-optic devices used in intensity modulation, direct detection links.

L ≤ 1 when the laser facets are asymmetrically coated so that all the optical power is emitted from one facet. 6) is its wavelength dependence. 5) is the ratio of optical power to electrical current. And whereas the current is independent of wavelength, the energy of the photons comprising the optical power has a wavelength dependence. Thus the same differential quantum efficiency will lead to two different slope efficiencies at two different wavelengths. 09 W/A. As this example makes clear, although the upper bound on ηl is one, the upper bound on sl is a number greater or less than 1 W/A, depending on the wavelength.

Point Authors and date Freq. (GHz) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 M. , 1993 Fujitsu, 1996 B. , 1994 T. , 1990 Y. , 1993 W. , 1990 T. , 1994 H. , 1992 T. , 1995 R. , 1992 L. , 1991 Y. , 1997 J. , 1994 S. 8 3 10 12 12 13 18 20 20 22 28 30 33 40 form of impedance matching between the modulation source and the laser to satisfy the definition of available power. A simple, but as we will see inefficient, way to implement the impedance match is to add a resistor, RMATCH , in series with the laser. The value of this resistor is chosen such that RS = RL + RMATCH .

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Analog optical links by Cox III C.H.

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