Residual chirp in integrated-optic modulators

Djupsjöbacka, A.

doi:10.1109/68.124870

Cited by 75 publications

(22 citation statements)

References 4 publications

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“…A 1 and A 2 denote the magnitude of the optical phase induced in each optical path. The chirp parameter of an external modulator is defined as [4] a ¼ dj dt 1 2IðtÞ…”

Section: Theorymentioning

confidence: 99%

See 1 more Smart Citation

Reduction in timing jitter by chirp selection for externally modulated return to zero optical soliton pulse at 10 Gb/s

Singh¹,

Sharma²,

Kaler³

2010

Optik

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“…A 1 and A 2 denote the magnitude of the optical phase induced in each optical path. The chirp parameter of an external modulator is defined as [4] a ¼ dj dt 1 2IðtÞ…”

Section: Theorymentioning

confidence: 99%

“…The main interest in chirp has, so far, been shown for lasers. In comparison, a much smaller interest has been shown for the chirp properties of external optical modulators [1][2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Reduction in timing jitter by chirp selection for externally modulated return to zero optical soliton pulse at 10 Gb/s

Singh¹,

Sharma²,

Kaler³

2010

Optik

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“…Generally speaking, chirp degrades system performance by broadening the optical spectrum of the signal without adding any new information. The chirp of an optical signal, α (t), is defined in terms of a ratio between the phase and intensity modulations [2][3][4],…”

Section: Chirp Induced By Mach-zehnder Modulationmentioning

confidence: 99%

Advanced modulation formats for fiber optic communication systems

Mauro

Raghavan

2008

Sci Model Simul

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Choice of modulation format plays a critical role in the design and performance of fiber optic communication systems. We discuss the basic physics of electro-optic phase and amplitude modulation and derive model transfer functions for ideal and non-ideal Mach-Zehnder modulators. We describe the generation and characteristics of the standard nonreturn-to-zero (NRZ) modulation format, as well as advanced formats such as returnto-zero (RZ), carrier-suppressed RZ (CSRZ), duobinary, modified duobinary, differential phase-shift keyed (DPSK), and return-to-zero DPSK (RZ-DPSK). Finally, we discuss the relative merits of these formats with respect to a variety of system impairments.

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“…One method is to use the chirp effect in a dual-arm Mach-Zehnder modulator (MZM) by adjusting the amplitude of applied electrical voltages. It is well known that the negative chirp effect can compensate the pulse distortion due to the effect of chromatic dispersion in the anomalous wavelength region of optical single-mode fibers (SMFs) [1][2][3][4]. MZMs employing this negative chirp effect can transmit 10 Gbit/s optical nonreturn-to-zero (NRZ) signals over 120 km.…”

Section: Introductionmentioning

confidence: 99%