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Polarization mode dispersion

About: Polarization mode dispersion is a research topic. Over the lifetime, 5147 publications have been published within this topic receiving 80055 citations. The topic is also known as: PMD.


Papers
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Journal ArticleDOI
TL;DR: This high-speed intrinsically stable polarization modulation scheme based on an inherently stable Sagnac interferometer is reported, which can be widely applied to many polarization-encoding QKD systems, such as BB84, MDI, etc.
Abstract: Polarization modulation plays a key role in polarization-encoding quantum key distribution (QKD). Here, we report a new, to the best of our knowledge, polarization modulation scheme based on an inherently stable Sagnac interferometer. The presented scheme is free of polarization mode dispersion and calibration as well as insensitive to environmental influences. Successful experiments at a repetition frequency of 1.25 GHz have been conducted to demonstrate the feasibility and stability of the scheme. The measured average quantum bit-error rate of the four polarization states is as low as 0.27% for 80 consecutive minutes without any adjustment. This high-speed intrinsically stable polarization modulation can be widely applied to many polarization-encoding QKD systems, such as BB84, MDI, etc.

34 citations

Journal ArticleDOI
TL;DR: A numerical bit error rate (BER) estimation approach for direct-detected orthogonal frequency division multiplexing (OFDM) signals in the presence of optical preamplified receivers is provided and the results show that the gapped OFDM has a better sensitivity while the interleaved OF DM has a more PMD-tolerable capability.
Abstract: In this paper, we provide a numerical bit error rate (BER) estimation approach for direct-detected orthogonal frequency division multiplexing (OFDM) signals in the presence of optical preamplified receivers. The individual BER of each subcarrier is first computed by considering their electrical signal-to-noise ratio (SNR), and then the ensemble BER is derived simply by taking the average of all the subcarriers' BERs. The calculated BER is verified by the conventional error-counting approach with high precision and is still accurate with higher quadratic-amplitude modulation (QAM) formats, even under the influences of the optical filtering and polarization mode dispersion (PMD) effects. Based on our simulation approach, the required extra power budget for 16- and 64-QAM relative to 4-QAM format are found to be ~3.8 and 8.2 dB, respectively, at a BER of 10-9. Furthermore, we use this approach to compare the receiving sensitivities and PMD tolerances for the previous proposed gapped and interleaved radio-frequency (RF)-tone-assisted OFDM systems. The results show that the gapped OFDM has a better sensitivity while the interleaved OFDM has a more PMD-tolerable capability.

34 citations

Journal ArticleDOI
TL;DR: In the presence of an intensity-dependent frequency chirp, periodic linear mode coupling between two copropagating waves may counteract their temporal walkoff and lead to a new type of optical soliton that propagates at any wavelength.
Abstract: In the presence of an intensity-dependent frequency chirp, periodic linear mode coupling between two copropagating waves may counteract their temporal walkoff and lead to a new type of optical soliton that propagates at any wavelength.

34 citations

Proceedings ArticleDOI
Fred Buchali1, Henning Bulow1, W. Baumert1, R. Ballentin1, T. Wehreu1 
07 Mar 2000
TL;DR: In this paper, a 3.3 dB reduction of the power penalty induced by the chromatic dispersion of an 127 km standard single-mode fiber (G.652) has been achieved (BER=10/sup -9/, PRBS 2/sup 23/-1) by processing the detected signal in the receiver with a nonlinear equaliser realized as SiGe integrated circuit.
Abstract: At 10 Gbit/s a 3.3 dB reduction of the power penalty induced by the chromatic dispersion of an 127 km standard single-mode fiber (G.652) has been achieved (BER=10/sup -9/, PRBS 2/sup 23/-1) by processing the detected signal in the receiver with a nonlinear equaliser realized as SiGe integrated circuit.

34 citations

Journal ArticleDOI
TL;DR: The designs proposed in this paper have bright prospects for applications in all-optical format conversion, supercontinuum generation, optical wavelength conversion, and many other fields.
Abstract: A novel (to our knowledge) type of photonic crystal fiber (PCF) with high nonlinearity and flattened dispersion is proposed. The propagation characteristics of chromatic dispersion, effective area, and nonlinearity are studied numerically by using the full-vector finite element method. Several PCF designs with high nonlinearity and nearly zero flattened dispersion or broadband flattened, and even ultraflattened, dispersion over different wavelength bands are obtained by optimizing the structural parameters. One optimized PCF has a nearly zero ultraflattened dispersion of 2.3 ps/(nm·km) with a dispersion variation of 0.2 ps/(nm·km) over the C+L+U wavelength bands. In addition, the dispersion slope and nonlinear coefficient at 1.55 μm can be up to 2.2×10−3 ps/nm2·km and 33.2 W−1·km−1, respectively. The designs proposed in this paper have bright prospects for applications in all-optical format conversion, supercontinuum generation, optical wavelength conversion, and many other fields.

34 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202332
202275
202145
202069
201968
201868