Ultranarrow Spectrum-Sliced Incoherent Light Source for 10-Gb/s WDM PON

Al-Qazwini, Zaineb; Kim, Hoon

doi:10.1109/jlt.2012.2214435

Cited by 24 publications

(13 citation statements)

References 20 publications

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“…Compared with polarization-sensitive Mach-Zehnder modulator (MZM), the use of EAM gives a 3-dB gain in optical power and signal to noise ratio (SNR) [15,18]. Each EAM has 3 dB insertion loss and maximum applied voltage is 5 Volts.…”

Section: B Simulation Model and Basic System Parametersmentioning

confidence: 99%

“…Each EAM has 3 dB insertion loss and maximum applied voltage is 5 Volts. SOA is gain saturated and amplifying incoming carrier spectral slice, as well as used for suppression of excess intensity noise (EIN), which comes from the spontaneous-spontaneous beating between different wavelength components of the spectrally sliced incoherent broadband ASE light source [15].…”

Section: B Simulation Model and Basic System Parametersmentioning

confidence: 99%

“…We also used additional gain saturated semiconductor optical amplifier (SOA) before modulator to suppress excess intensity noise (EIN) which originates from the ASE source [15].…”

mentioning

confidence: 99%

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Realization of dense bidirectional spectrum sliced WDM-PON access system

Spolītis

Olonkins

Poriņš

2014

2014 9th International Symposium on Communication Systems, Networks &Amp; Digital Sign (CSNDSP)

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The present paper proposes high speed dense 8-channel bidirectional WDM-PON access system where spectrally-uniform ASE source is shared among multiple users for realization of downstream transmission. Upstream transmission is realized by using conventional laser based solution. Proposed system is based on ITU-T DWDM grid and operating at 10 Gbit/s per channel symmetrically on both directions. It is demonstrated that implemented spectrum slicing technology is capable to provide downstream data transmission over 20 km SMF fiber span with BER<10 -12 by using additional fiber Bragg grating chromatic dispersion compensation module and excess intensity noise reduction by additional semiconductor optical amplifier.

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Section: B Simulation Model and Basic System Parametersmentioning

confidence: 99%

Section: B Simulation Model and Basic System Parametersmentioning

confidence: 99%

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Realization of dense bidirectional spectrum sliced WDM-PON access system

Spolītis

Olonkins

Poriņš

2014

2014 9th International Symposium on Communication Systems, Networks &Amp; Digital Sign (CSNDSP)

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“…This is because as the data rate (i.e., B e ) increases, B o should increase proportionally in order to maintain the SNR. However, this approach poses many problems when the data rate is high (e.g., 2.5 Gb/s and beyond) [24]. First, a large B o makes high-speed optical signals vulnerable to fiber dispersion.…”

mentioning

confidence: 99%

“…In this paper, we will present o 10-Gb/s transmission of the ultra-n include the 10-Gb/s upstream tra signal over a loop-back configured n spectrum slicing makes the ermined by the modulation his allows us to minimize B o resilient to fiber dispersion narrow bandwidth of the ensity correlation even after dth SSIL source, we have nsmission of 10-Gb/s nondispersion-uncompensated MF) [24]. We have also sion over 20-km SSMF and 4].…”

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confidence: 99%

10-Gb/s/channel WDM PON using ultra-narrow spectrum-sliced incoherent light source

Kim

2013

2013 9th International Conference on Information, Communications &Amp; Signal Processing

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We present the use of an ultra-narrow spectrum-sliced incoherent light source for transmission of 10-Gb/s non-returnto-zero signals for wavelength-division-multiplexed passive optical networks. In this light source, a broadband amplified spontaneous emission noise is spectrum-sliced by an ultra-narrow filter and then fed to a gain-saturated semiconductor optical amplifier to suppress the excess intensity noise of the incoherent light. 10-Gb/s modulation is followed using a polarizationinsensitive optical modulator. Thanks to the ultra-narrow linewidth of the source (~0.01 nm), not only is the 10-Gb/s incoherent signal successfully transmitted over 20-km standard single-mode fiber without any dispersion compensation, but also retains the noise suppression after passing through a 0.2-nmbandwidth narrow optical filter. Two different line rates of 10.7 and 12.5 Gb/s are experimentally demonstrated, assuming 7% and 25% forward error correction, respectively. Also presented is the 10-Gb/s upstream transmission over a loopback configured network.Keywords-spectrum-slicing, incoherent light, optical acess network, wavelength-division-multiplexing.Wavelength-division-multiplexing (WDM) passive optical networks (PONs) have been considered as a promising solution to the last-mile technology to meet the soaring demand for bandwidth. However, one of the biggest challenges of deploying large-scale WDM-PON systems is still low-cost implementation and management of wavelength-selective light sources. The light sources operating at specific wavelengths make the optical network units all different from others, and thus do not allow the transponder manufacturers to enjoy the benefits of mass production. The service providers should also stock up all the different kinds of optical transmitters at their storehouse to be braced for any service failure caused by optical transmitter breakdown.Spectrum-sliced incoherent light (SSIL) sources are very attractive in this regard. A wideband amplified spontaneous emission (ASE) from an optical amplifier is spectrum-sliced into multiple channels by an waveguide grating router (WGR) to be used as optical sources for WDM PON instead of costly wavelength-specific light sources for each channel [1]. Therefore, SSIL sources can easily generate multiple wavelength channels from a single wideband optical amplifier without requiring any wavelength-selective lasers.The biggest concern about these incoherent light sources is large excess intensity noise (EIN) originated from the spontaneous-spontaneous beating between different wavelength components of the SSIL. This noise limits the maximum achievable signal-to-noise ratio (SNR) of the signal at the receiver, which can be expressed as B o /B e for unpolarized light, where B o is the optical bandwidth and B e is the electrical bandwidth [1].A couple of techniques have been proposed to overcome this SNR limitation: gain-saturated semiconductor optical amplifier (SOA) and feed-forward noise reduction [4], [7]. Nonetheless, the conventional approach to acco...

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Integer codes correcting burst asymmetric within a byte and double asymmetric errors

Radonjić

Vujičić

2019

Cryptogr. Commun.

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This paper presents a class of integer codes capable of correcting l-bit burst asymmetric errors within a b-bit byte (1 ≤ l < b) and double asymmetric errors within a codeword. The presented codes are constructed with the help of a computer and have the potential to be used in unamplified optical networks. In addition, the paper derives the upper bound on code length and shows that the proposed codes are efficient in terms of redundancy.

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Ultranarrow Spectrum-Sliced Incoherent Light Source for 10-Gb/s WDM PON

Cited by 24 publications

References 20 publications

Realization of dense bidirectional spectrum sliced WDM-PON access system

Realization of dense bidirectional spectrum sliced WDM-PON access system

10-Gb/s/channel WDM PON using ultra-narrow spectrum-sliced incoherent light source

Integer codes correcting burst asymmetric within a byte and double asymmetric errors

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