Patent
Improved distortion analayzer for compensation apparatus of first-orderpolarization mode dispersion (PMD)
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TLDR
In this paper, the effect of polarization mode dispersion that an optical signal experiences as it propagates through an optical transmission fiber is compensated for at a receiver using a birefringent compensator.Abstract:
The effect of polarization mode dispersion that an optical signal experiences as it propagates through an optical transmission fiber is compensated for at a receiver using a birefringent compensator, in which a distortion analyzer repeatedly examines the signal outputted by the compensator and causes the compensator to reduce the effect of such polarization mode dispersion based on the results of such examination.read more
Citations
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Optical transmitter and optical transmission system
TL;DR: In this paper, the degradation of the transmission quality caused by chromatic dispersion characteristic of an optical transmission medium is suppressed to a minimum by using differential phase shirt keying (DPSK) format.
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Apparatus and method for the complete characterization of optical devices including loss, birefringence and dispersion effects
TL;DR: In this article, a source of light having a variable frequency with a polarization state which varies linearly with frequency is provided as an input to the device under test, and the combined light for the frequencies of interest is split into two orthogonal polarizations which are then detected in a spectral acquisition apparatus and supplied to a microprocessor.
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Apparatus and method for polarization mode dispersion emulation and compensation
Lothar Moeller,Herwig Kogelnik +1 more
TL;DR: In this paper, a polarization mode dispersion (PMD) emulator may include one or more modular cells that emulate PMD, with each of the cells including optical delay and phase modulation components.
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Use of low-speed components in high-speed optical fiber transceivers
Norman L. Swenson,Paul Voois +1 more
TL;DR: In this article, an optical communication link is described, which includes an optical transmitter including an electrical-to-optical converter for converting electrical signals into optical signals at the system data rate and launching said signals onto an extended length of optical fiber.
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Device for compensating polarization dispersion in an optical transmission system
TL;DR: In this article, the authors propose a mechanism for compensating the polarization dispersion suffered by an optical signal when it is transmitted by an orthogonal optical line by generating a differential time delay between two orthogonality modes and controlling the controller so that it converts the signal transmitted by the line into a compensated optical signal.
References
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Journal ArticleDOI
Automatic compensation technique for timewise fluctuating polarisation mode dispersion in in-line amplifier systems
T. Takahashi,T. Imai,M. Aiki +2 more
TL;DR: In this article, an adaptive equaliser for polarisation mode dispersion (PMD) is developed, and its performance is evaluated in a 10 Gbit/s transmission system.
Proceedings ArticleDOI
Automatic compensation of first order polarization mode dispersion in a 10 Gb/s transmission system
TL;DR: In this paper, a novel adaptive optical polarization mode dispersion equalizer was demonstrated in a 10-Gb/s transmission experiment, which comprises a fast electrooptic polarization transformer, an adjustable differential polarization delay line, and a simple electric distortion analyzer for automatic feedback control.
Patent
Method and apparatus for automatic compensation of first-order polarization mode dispersion (PMD)
TL;DR: In this article, the effect of polarization mode dispersion that an optical signal experiences as it propagates through an optical transmission fiber is compensated for at a receiver using a birefringent compensator, in which the compensator automatically and adaptively generates a level of differential time delay that substantially equals the optical signal experience, but of different sign, and, therefore, essentially cancels out the undesired delay.
Patent
Method and apparatus for compensating dispersion of polarization
TL;DR: In this paper, a signal light which is frequency-modulated by a predetermined frequency is supplied to an optical fiber, from which the signal light is sent to a polarization controller to constantly minimize the intensity, so that the polarization dispersion in a transmission line is compensated to suppress the deterioration of wave-shape.
Patent
Polarization mode dispersion compensation via an automatic tracking of a principal state of polarization
TL;DR: In this paper, a polarization controller (PC) receives a dithering optical signal including first and second principal states of polarization (PSPs) and PMD distortion received by the PMD compensator.