&lt;title&gt;High-speed integrated optical wireless transceivers for in-building optical LANs&lt;/title&gt;

O’Brien, Dominic; Faulkner, Grahame; Jim, K.; Zyambo, E.B.; Edwards, D.J.; Whitehead, M.; Stavrinou, Paul N.; Parry, G.; Bellon, J.; Sibley, Martin J.N.; Lalithambika, Vinod A.; Joyner, Valencia M.; Samsudin, Rina J.; Atkinson, Richard M.; Holburn, DM; Mears, R.J.

doi:10.1117/12.417501

Cited by 7 publications

(4 citation statements)

References 6 publications

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“…It presents a wide FOV (Field Of View) and typically filters several hundred nanometres. It is possible to create the appropriate filtering by directly incorporating specific layers on the photoelectric detector [17] or by using a holographic diffuser [18].…”

Section: Reception Cardmentioning

confidence: 99%

Indoor optical wireless communication: a GigaEthernet network prototype at 60 dB link margin

2009

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The optical wireless system is a promising solution for increasing the available communication bandwidth within a room. This technology can give a very high-speed communication between devices and becomes a good alternative with respect to radio systems. For both technologies, the architecture is similar: a base station is installed to cover zones and transmit data with a defined quality of service. A device may be connected to the Wireless Local Area Network (WLAN) with an adapter that emits and receives on this network.The wireless optical technology has advantageous specific characteristics, such as: secure data transmission, immunity, high data rate, wavelength re-use. Nevertheless, the optical system may have a limit on the network management aspect and link budget. The scope of this paper is to present a prototype developed during a collaborative project. This prototype uses a Giga Ethernet chip and components in the 1550 nm band. Based on OOK modulation, the prototype is fully compatible with the direct conversion of fibre-based Giga-Ethernet to an analogue free space version. Moreover, it also proposes a new class 1 high power emission solution with 30 dBm on 45° HP (Half Power) angle and a new large Field Of View (FOV) module on the reception side. This full duplex system, composed by one Base station and two Modules, transmits data on, at least, one meter. The document will present the prototype characteristics with testbed and experimentation results.

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Section: Reception Cardmentioning

confidence: 99%

Indoor optical wireless communication: a GigaEthernet network prototype at 60 dB link margin

2009

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“…400µm pitch array The detectors for the demonstrations are InGaAs/InP PIN diodes are grown on InP substrates by MOVPE, designed for substrate illumination and operation in the range from 980nm to beyond 1500nm. The device structure is fully reported elsewhere 6 . Devices are processed into close packed hexagonal detectors using standard techniques similar to those used for the emitters.…”

Section: Emittersmentioning

confidence: 99%

High-speed integrated optical wireless system demonstrator

et al. 2001

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The widespread use of Optical LANs is dependent on the ability to fabricate low cost transceiver components. These are usually complex, and fabrication involves the integration of optoelectronic and electronic devices, as well as optical components. A number of UK universities are currently involved in a project to demonstrate integrated optical wireless transceiver subsystems that can provide eyesafe line of sight in-building communication at 155Mbit/s and above, using 1550nm eyesafe emitters. The system uses two-dimensional arrays of novel microcavity LED emitters, and arrays of detectors integrated with custom CMOS integrated circuits to implement tracking transceiver components. The project includes design and fabrication of the optoelectronic devices, transimpedance amplifiers and optical systems, as well as flip-chip bonding of the optoelectronic and CMOS integrated circuits to create components scaleable to the large numbers of sources and detectors required. In this paper we report initial results from the first seven channel demonstrator system. Performance of individual components, their limitations and future directions are detailed.

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“…A 100 Mb/s link by electronic tracking was reported in [3]. Work on integrated tracking transceivers has been undertaken and solid state tracking components have been fabricated for use in LOS optical wireless networks [4]. A combination of diffuse and directed link was developed in [5], where the diffuse link operating at a lower data rate was used for connectivity between base station (BS) and mobile station (MS) and the electronic tracked links were used for 155Mb/s communication.…”

Section: Introductionmentioning

confidence: 98%

Transparent optical wireless hubs using wavelength space division multiplexing

et al. 2004

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In this paper we describe a novel scheme that uses wavelength space division multiplexing to provide high bit rate communications using indoor line of sight (LOS) optical links. In the approach, a dispersive grating, or more complex diffractive optics, is used for passive beam steering. Light from a ceiling mounted hub is steered to a corresponding Mobile Terminal (MT) within a cell in the coverage area, depending on the wavelength that illuminates the dispersive element. The hubs can be optically transparent, passive and theoretically reciprocal. An identical or similar dispersive component can be used in the transceivers at both ends of the hub uplink and downlink. The hubs have the potential to provide data rates of Gbits/s, terminal mobility as well as low complexity. In order to test the concept a one-dimensional (1D) system has been fabricated. A simple 1 st order plane diffraction grating with a pitch of 1.1 µm is used to provide 1D beam steering. A dispersive angle of approximately 10 degrees over a wavelength range of 30nm in the wavelength division multiplexing (WDM) 'C' band (1530nm -1560nm) is obtained. Simulation shows that the dispersive angle can be further increased up to 90 degrees using a secondary optical system. Transmission of 1Gb/s data has been demonstrated using this initial configuration. In the paper we discuss these results and further refinement to the system.

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<title>High-speed integrated optical wireless transceivers for in-building optical LANs</title>

Cited by 7 publications

References 6 publications

Indoor optical wireless communication: a GigaEthernet network prototype at 60 dB link margin

Indoor optical wireless communication: a GigaEthernet network prototype at 60 dB link margin

High-speed integrated optical wireless system demonstrator

Transparent optical wireless hubs using wavelength space division multiplexing

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