نتایج جستجو برای: passive phase conjugation
تعداد نتایج: 677367 فیلتر نتایج به سال:
A phase conjugation based method for full-duplex digital communications is discussed. The method uses a spatially confined and directive antenna pattern while a fullduplex digital communications link is maintained between moving platforms. The communications abilit~ of the array is based on processing the phase associated with the message and the phase associated with the platform’s motion sepa...
All organisms are constantly and unavoidably exposed to xenobiotics including both man– made and natural chemicals such as drugs, plant alkaloids, microorganism toxins, pollutants, pesticides, and other industrial chemicals. Formally, biotransformation of xenobiotics as well as endogenous compounds is subdivided into phase I and phase II reactions. This chapter focuses on phase II biotransforma...
We experimentally investigate a long-distance, high-bit-rate transmission system which combines optical-phase-conjugation with quasi-lossless amplification. Comparison with a conventional system configuration demonstrates the possibility of obtaining both dispersion compensation and improved nonlinear tolerance using proposed scheme. ©2009 Optical Society of America OCIS codes: (060.4510) Optic...
Using optical phase conjugation with a polarization independent periodically-poled lithium-niobate subsystem, we demonstrate dense WDM 2x10Gbit/s RZ-DQPSK transmission over 10,200km of SSMF with a record accumulated dispersion, exceeding 80,000ps/nm. 2005 Optical Society of America OCIS codes: (060.2330) Fiber optics communications; (070.5040) Phase conjugation
Magnetic fields selectively quench phase conjugation during photorefractive four-wave mixing experiments in the diluted magnetic semiconductor Cd12xMnxTe. Phase conjugation using circularly polarized light fields differentiates between the time-reversed and non-time-reversed components of the four-wave mixing signal. The experimental results establish the connection between the removal of time-...
We describe recent theoretical and experimental studies of polarization and spatial information recovery by modal dispersal and phase conjugation. We discuss the fidelity of this phase-conjugation process as a function of input-beam launching conditions. We also describe several new applications of the scheme which involve correction of nonreciprocal polarization distortions, correction of loss...
The temporal effect of optical phase conjugation in dispersion-shifted fiber is studied numerically. Frequency chirping is induced in the conjugate pulse by the signal pulse and the pump wave through cross-phase modulation, which increases with the signal power and may distort the pulse shape when the conjugate pulse propagates in the standard fiber. It is also shown that, when the signal power...
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