## Coherent and Nonlinear Lightwave CommunicationsThis is a practical source on recent developments in coherent and nonlinear lightwave communications. The book systematically presents up-to-date explanations of all the relevant physical principles and recent research in this emerging area. Providing an unparallelled engineering-level treatment (with 700 equations), this reference also describes the progression of coherent and nonlinear technology from yesterday's experimental field to today's practical applications tool. This work is intended as a tool for research telecommunication engineers, applications engineers working with broadband telecom systems and networks, and postgraduate students. |

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Page 148

But while amplifying the incoming optical signal, an optical amplifier generates

optical noise, which is referred to as amplified

Chapter 8). Amplified

amplifier and ...

But while amplifying the incoming optical signal, an optical amplifier generates

optical noise, which is referred to as amplified

**spontaneous emission**(seeChapter 8). Amplified

**spontaneous emission**is generated by each in-lineamplifier and ...

Page 161

The following equation is valid for the

aSp{z) (6.8) By neglecting the

becomes = exp^z, - z2) + £2aSp(z)rfz] (6.9) It can be assumed that the photons,

which ...

The following equation is valid for the

**spontaneous emission**of photons: ±Nr„ =aSp{z) (6.8) By neglecting the

**spontaneous emission**, the solution to (6.7)becomes = exp^z, - z2) + £2aSp(z)rfz] (6.9) It can be assumed that the photons,

which ...

Page 227

2amNfMM± 7 ft (8.70) A superscript plus sign (+) in relations (8.68) to (8.70)

denotes pump and amplified

signal, while a superscript minus sign (-) denotes the case when amplified

spontaneous ...

2amNfMM± 7 ft (8.70) A superscript plus sign (+) in relations (8.68) to (8.70)

denotes pump and amplified

**spontaneous emission**copropagating with thesignal, while a superscript minus sign (-) denotes the case when amplified

spontaneous ...

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### Contents

Coherent Optical Receiver Sensitivity | 15 |

Optical Transmitters for Coherent Lightwave Systems | 61 |

Optical Receivers for Coherent Lightwave Systems | 101 |

Copyright | |

7 other sections not shown

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### Common terms and phrases

amplification coefficient amplitude applied Brillouin scattering carrier frequency Chapter characteristics coherent detection coherent lightwave system coherent optical receiver components corresponding defined depends detection scheme digit interval dispersion DPSK electric field energy equal equation erbium-doped fiber amplifiers error probability evaluated expressed Figure filter frequency shift Gaussian Hence heterodyne detection homodyne detection IEEE IEEE/OSA IM/DD incoming optical signal influence input laser amplifiers length Lett lightwave systems Lightwave Techn loss modulating signal multichannel nonlinear effects nonlinear lightwave system obtained optical amplifiers optical oscillator optical power optical transmitter optical-fiber parameters phase difference phase modulation phase noise phase shift photodetector photodiode photons polarization propagation PSK signals pump signal Raman amplification Raman amplifiers random ratio realization receiver sensitivity refractive index resonator scattered signal semiconductor laser signal power single-mode optical fiber soliton pulse soliton regime spectral linewidth spectrum spontaneous emission term thermal noise transmission system variance voltage width