Preservation of polarization orthogonality in linear optical systems

Cimini, Leonard J.; Habbab, I.M.I.; John, Raheel; Saleh, A.A.M.

doi:10.1364/ofc.1988.tui7

Cited by 2 publications

(2 citation statements)

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“…If the orthogonality is maintained through the optical system, at the receiver, each of the modulated signals can be recovered. But SOP orthogonality is degraded due to the propagation in optical networks [6] due to stress in the glass fiber (bending and twisting), moving the fiber, or even ambient temperature changes. For this reason, it is important to evaluate if the crosstalk due to cross-polarization interference is limiting the performance at the receiver.…”

Section: Optical Polarization Division Multiplexing Overviewmentioning

confidence: 99%

Polarization Division Multiplexing of OFDM Radio-over-Fiber Signals in Passive Optical Networks

Morant

Pérez

Llorente

2014

Advances in Optical Technologies

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This paper describes the state-of-the-art of polarization multiplexing for optical networks transmission. The use of polarization division multiplexing (PDM) permits to multiply the user capacity and increase the spectral efficiency. Combining PDM and orthogonal frequency division multiplexed (OFDM) modulation allows maximizing the optical transmission capacity. The experimental demonstration of transmitting OFDM signals following ECMA-368 ultrawide band (UWB) standard in radio-over-fiber using PDM in passive optical networks is herein reported. The impact of cross-polarization and cochannel crosstalk is evaluated experimentally in a three-user OFDM-UWB subcarrier multiplexed (SCM) configuration per polarization. Each SCM uses up to three OFDM-UWB channels of 200 Mbit/s each, achieving an aggregated bitrate of 1.2 Gbit/s with 0.76 bit/s/Hz spectral efficiency when using PDM transmission. The experimental results for the polarization-multiplexed SCM indicate that a 4 dB additional polarization crosstalk interference can be expected compared to a nonpolarization-multiplexed transmission system which translates to 2.4 dB EVM penalty in the UWB signals. The successful PDM transmission of SCM multiuser OFDM-UWB over a passive optical network of 25 km standard-single mode fiber (SSMF) reach is demonstrated.

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Section: Optical Polarization Division Multiplexing Overviewmentioning

confidence: 99%

Polarization Division Multiplexing of OFDM Radio-over-Fiber Signals in Passive Optical Networks

Morant

Pérez

Llorente

2014

Advances in Optical Technologies

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“…However, the mixing efficiency expression reported in [ 11 is complex if the received field and the LO SOPs are not linear. It can be written as the square cosine of an angle that, however, does not seem to have a physical meaning unless the fields are both linearly polarized [ 2 ] .…”

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Mixing efficiency in a coherent optical receiver

Marchis

Lannone

Matera

1991

Micro & Optical Tech Letters

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In this article the mixing efficiency of an optical coherent receiver is calculated using the Stokes parameter representation for the involved fields. It allows us to obtain formulas of immediate interpretation and computation that can be useful for optical coherent communication system performance evaluation and for the analysis of optical coherent sensors. Moreover, a new scheme for active polarization tracking based on the obtained results is presented that is useful for fiber coherent optical communications.

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Preservation of polarization orthogonality in linear optical systems

Cited by 2 publications

References 0 publications

Polarization Division Multiplexing of OFDM Radio-over-Fiber Signals in Passive Optical Networks

Polarization Division Multiplexing of OFDM Radio-over-Fiber Signals in Passive Optical Networks

Mixing efficiency in a coherent optical receiver

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