We use the physics of four-wave mixing to study the decorrelation of two optical frequencies as they propagate through different fiber delays. The phase noise relationship between the four-wave mixing components is used to quantify and measure the correlation between the two optical frequencies using the correlation coefficient. We show the difference in the evolution of decorrelation between frequencydependent and frequency-independent components of phase noise. © 2014 Optical Society of America.

Deepa Venkitesh

Department of Electrical Engineering

Natural frequencies

Optical correlation

Optical materials

Phase noise

Correlation coefficient

DE CORRELATIONS

FREQUENCY INDEPENDENT

Frequency-dependent

OPTICAL FREQUENCY

Four wave mixing

IIT Madras is a public technical and research university located in Chennai, Tamil Nadu. Founded in 1959, it is recognised as an Institute of National Importance.

IIT Madras has been ranked as the top engineering institute in India for four years in a row by the National Institutional Ranking Framework of the MHRD

It currently offers undergraduate, postgraduate and research degrees across 16 disciplines in Engineering, Sciences, Humanities and Management. About 596 faculty belonging to science and engineering departments and centres of the Institute are engaged in teaching, research and industrial consultancy.

IIT Madras

Measuring the correlation of two optical frequencies using four-wave mixing.

Applied Optics

We study the effect of transfer of phase noise in different fourwave mixing schemes using a coherent phase noise measurement technique.The nature of phase noise transfer from the pump to the generatedwavelengths is shown to be independent of the type of phase noise (1/ for white noise frequency components). We then propose a novel schemeusing dual correlated pumps to prevent the increase in phase noise in theconjugate wavelengths. The proposed scheme is experimentally verifiedby the all-optical wavelength conversion of a DQPSK signal at 10.7 GBaud. © 2013 Optical Society of America.

Fulltext

Optics Express

Dual correlated pumping scheme for phase noise preservation in all-optical wavelength conversion

CLEO: 2014

A technique to measure the correlation of optical frequencies using four-wave mixing

Phase-sensitive frequency conversion of quadrature modulated signals

Optics Letters

Mode coherence measurements across a 15 THz spectral bandwidth of a passively mode-locked quantum dash laser

IEEE Journal of Selected Topics in Quantum Electronics

Interband Four-Wave Mixing in Semiconductor Optical Amplifiers With ASE-Enhanced Gain Recovery

Measuring the correlation of two optical frequencies using four-wave mixing

Journal	Data powered by TypesetApplied Optics
Publisher	Data powered by TypesetOSA - The Optical Society
ISSN	1559128X
Impact Factor	1.230
Open Access	No
Citation Style	unsrt
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