Zobrazeno 1 - 9
of 9
pro vyhledávání: '"S. D. Greaves"'
Autor:
R. T. Unwin, S. D. Greaves
Publikováno v:
Microwave and Optical Technology Letters. 6:892-895
The use of intrinsic noise parameters P, R, and C to describe the noise mechanisms present in short-gate-length GaAs MESFETs is well established. These parameters are, however, bias dependent, and as yet no analytic solution is available that can acc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a7c58a5a862202e283047845c71afcdb
https://doi.org/10.1002/mop.4650061608
https://doi.org/10.1002/mop.4650061608
Autor:
R. T. Unwin, S. D. Greaves
Publikováno v:
Microwave and Optical Technology Letters. 6:60-65
Accurate noise characterization of MESFETs and HEMTs is required for the design of high-frequency optical receivers. Here we consider a technique that extracts the intrinsic noise parameters P, R, C from measured noise data. Novel analytic expression
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::adc72a97cd5cda70a95e55b464b2808b
https://doi.org/10.1002/mop.4650060116
https://doi.org/10.1002/mop.4650060116
Autor:
David R. Heatley, S. D. Greaves
Publikováno v:
SPIE Proceedings.
This paper considers the design and performance of a tuned front-end receiver for use in a free-space optical video systems system. The use of front-end tuning is advantageous as it enables large area optical collectors to be employed, it reduces rec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bc37960708028ac4170d5e238151931e
https://doi.org/10.1117/12.256367
https://doi.org/10.1117/12.256367
Publikováno v:
SPIE Proceedings.
This paper details the design and testing of an optical wireless Ethernet system. This system is a demonstration unit that grants the user of a mobile computer access to network services usually only available to wired users. The system operates at t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9c5a824179ee464be45c8a2a77b5b1bb
https://doi.org/10.1117/12.256344
https://doi.org/10.1117/12.256344
Publikováno v:
IEE Colloquium on Optical Free Space Communication Links.
In this paper we discuss the design of an optical telepoint receiver. The level of receiver performance required when optical baseband video signals are recovered is discussed and a suitable receiver topology is presented. Theoretical and measured re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f9ef80008abc46183f08f00e578281d7
https://doi.org/10.1049/ic:19960191
https://doi.org/10.1049/ic:19960191
Publikováno v:
SPIE Proceedings.
In this paper we discuss the design of an optical telepoint receiver. The level of receiver performance required when optical baseband video signals are to be recovered is discussed and a suitable receiver topology is presented. Theoretical and measu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::688bc3b388e5628215407154589c8d92
https://doi.org/10.1117/12.228151
https://doi.org/10.1117/12.228151
Autor:
Rodney T. Unwin, S. D. Greaves
Publikováno v:
SPIE Proceedings.
In this paper we investigate the design and realisation of broadband tee-tuned front-end optical receivers. The receivers will be implemented as a GaAs MMIC using the GEClMarconi F20 foundry, the activedevices are O.5pm gate-length GaAs MESFETs. Simp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1fdbfb0d5aa39a018000ec579516ae9a
https://doi.org/10.1117/12.227827
https://doi.org/10.1117/12.227827
Autor:
Rodney T. Unwin, S. D. Greaves
Publikováno v:
SPIE Proceedings.
Recently much interest has been shown in the design of very low noise tuned front-end optical receivers for use in Lightwave Sub-carrier Multiplex Systems as well as Coherent Lightwave Systems. This paper looks at the requirements that need to be con
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::38eb5818a16d18cc389bca8fbaf152d9
https://doi.org/10.1117/12.201308
https://doi.org/10.1117/12.201308
Autor:
Rodney T. Unwin, S. D. Greaves
Publikováno v:
SPIE Proceedings.
Tuned front-end optical receivers, for use in Coherent or Subcarrier Multiplex Lightwave systems, offer significant improvements in signal to noise performance over conventional baseband receivers. To design these receivers correctly a detailed knowl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c867abe800e06f275258b1746d177ee4
https://doi.org/10.1117/12.161340
https://doi.org/10.1117/12.161340