Transmission of Gb/s DPSK Millimeter-Wave Wireless Data Over Fiber Using Low-Cost Uncooled Devices With Remote 40-GHz Local Oscillator Delivery

Ismail, T.; Liu, Chin-Pang; Mitchell, John E.; Seeds, A.J.

doi:10.1109/jlt.2008.917086

Cited by 8 publications

(6 citation statements)

References 16 publications

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“…The most common technique is the use of expensive external MZM [2], [11]- [16]. Although, quite recently a medium-cost approach has been demonstrated for Gb/s data transmission using a directly modulated un-cooled distributed feedback laser and an optically generated 40 GHz local oscillator source [38]. This section shows how a MLL can be used as mm-wave modulated data source and discusses how the MLL locking range is related to the maximum baseband data that can be transmitted.…”

Section: Hybrid Mode-locked Laser As Millimeter Wavementioning

confidence: 99%

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Wireless Hybrid Mode Locked Lasers for Next Generation Radio-Over-Fiber Systems

Khawaja

Cryan

2010

J. Lightwave Technol.

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Abstract-This paper demonstrates a novel technique to wirelessly injection lock a state-of-the-art 40 GHz mode locked laser and shows baseband data transmission using such a technique. This allows mode locked lasers to be used as millimeter wave modulated data sources for next generation Radio-over-Fiber systems. Binary phase shift keying data transmission rates of up to 22 Mb/s have been demonstrated for a short wireless range of 10 cm. These devices can also be used as millimeter wave phase shifters for advanced antenna beam steering systems.Index Terms-Beam steering systems, binary phase shift keying, millimeter wave, mode locked lasers, phase shifters, radio-overfiber, wireless injection locking.

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Section: Hybrid Mode-locked Laser As Millimeter Wavementioning

confidence: 99%

“…The Quality factors of the eye diagrams are then measured. The -factor predicts the probability of bit errors by measuring the received signal strength and noise level rather than by counting actual errors [38]. It can be seen from Fig.…”

Section: A Bpsk Data Transmission Over a Mll-rof Linkmentioning

confidence: 99%

Wireless Hybrid Mode Locked Lasers for Next Generation Radio-Over-Fiber Systems

Khawaja

Cryan

2010

J. Lightwave Technol.

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“…The limited propagation distance at THz carrier frequencies allows well-defined microcells and frequency re-use. The architecture illustrated has already been used successfully for lower frequency wireless-over-fibre systems [7]- [10]. Possible applications include high-resolution multimedia services to mobile devices, wireless video distribution, and very high-speed wireless LANs.…”

Section: Introductionmentioning

confidence: 99%

“…Transmitting baseband data to the antenna units requires complex frequency generation and modulation technology to be placed in the hostile outdoor environment with severe cost implications. The alternative approach of centralised THz wireless signal generation reduces AU functionality to photo-detection and amplification, with the lower data rate uplink requirements met by simple modulation schemes [7], [9], [10]. This approach will now be described in more detail.…”

Section: Introductionmentioning

confidence: 99%

TeraHertz Photonics for Wireless Communications

Seeds

Shams

Fice

et al. 2015

J. Lightwave Technol.

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316

120

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Optical fibre transmission has enabled greatly increased transmission rates, with 10 Gb/s common in local area networks. End users find wireless access highly convenient for mobile communication. However, limited spectrum availability at microwave frequencies results in per-user transmission rates limited to much lower values, 500 Mb/s for 5 GHz band IEEE 802.11ac, for example. Extending the high data-rate capacity of optical fibre transmission to wireless devices, requires greatly increased carrier frequencies. This paper will describe how photonic techniques can enable ultra-high capacity wireless data distribution and transmission using signals at millimetre-wave and TeraHertz (THz) frequencies.

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“…In [9], a simple protection scheme was investigated; however, the design does not account for the need for inter-ONU communication and the need for increased bandwidth efficiency through a dynamic bandwidth allocation (DBA) scheme. Having these two features in a PON that supports premium services such as backhauling wireless applications, in which the ONUs are interconnected with the antenna base stations, increase the efficiency and throughput of the system [6,10]. Unlike other approaches that use amplifiers [1,2], we propose an amplifier-less ring PON architecture which in addition to cost also considers the needs of future premium services as important design factors.…”

Section: Introductionmentioning

confidence: 99%

Improved linear crosstalk tolerance in an un-amplified ring PON

et al. 2011

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There is increased interest in ring-based passive optical network (PON) architectures due to their local area network (LAN) capability among end users and inherent protection and restoration schemes. The ring architecture includes optical filters and switches with non-ideal channel isolation, leading to the generation of linear crosstalk, which can significantly degrade the system performance if it is not sufficiently suppressed. We use simulation to analyze the effects of linear crosstalk in an un-amplified TDM optical ring and show how we can improve the tolerance of the crosstalk in our architecture that employs optimized tap split ratios as a means of increasing the number of ONUs served. Our approach is based on simulation of the entire network using a combination of wavelength-domain and time-domain techniques. Typically, PON networks use two or three wavelengths that are separated by more than 50 nm to maintain the cost of components low and as such, it is logical that any crosstalk will be negligible. However, the subpar performance of such components motivated our study into the impact of crosstalk. We show that the tap ratio optimization which increases the number ONUs that can be served in the ring can also exacerbate the effects of linear interchannel crosstalk at the ONU's downstream signal receivers. We also show that surplus power at the last ONU can be utilized to counter this degraded crosstalk performance by careful tap ratio selection, thereby improving the overall tolerance to linear crosstalk in the system.

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Transmission of Gb/s DPSK Millimeter-Wave Wireless Data Over Fiber Using Low-Cost Uncooled Devices With Remote 40-GHz Local Oscillator Delivery

Cited by 8 publications

References 16 publications

Wireless Hybrid Mode Locked Lasers for Next Generation Radio-Over-Fiber Systems

Wireless Hybrid Mode Locked Lasers for Next Generation Radio-Over-Fiber Systems

TeraHertz Photonics for Wireless Communications

Improved linear crosstalk tolerance in an un-amplified ring PON

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