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L.J. Rivers

BT Group

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Publication

Featured researches published by L.J. Rivers.

international semiconductor laser conference | 1994

1.5 /spl mu/m InGaAsP/InP large mode size laser for high coupling efficiency to cleaved single mode fibre

I.F. Lealman; Michael J. Robertson; L.J. Rivers; M.J. Harlow; S.D. Perrin; C.P. Seltzer

Increased mode size MQW BH lasers utilising a tapered active region and passive guide have shown cleaved fibre coupling losses down to 4.1 dB with threshold currents of 4.9 mA and 15 mA at 20/spl deg/C and 80/spl deg/C respectively.

Electronics Letters | 1994

1.56μm InGaAsP/InP tapered active layer multiquantum well laser with improved coupling to cleaved singlemode fibre

I.F. Lealman; L.J. Rivers; M.J. Harlow; S.D. Perrin; Michael J. Robertson

Electronics Letters | 1995

Passive alignment of a tapered laser with more than 50% coupling efficiency

J.V. Collins; I.F. Lealman; P.T. Fiddyment; C.A. Jones; R.G. Waller; L.J. Rivers; K. Cooper; S.D. Perrin; M.W. Nield; M.J. Harlow

Electronics Letters | 1994

InGaAsP/InP tapered active layer multiquantum well laser with 1.8 dB coupling loss to cleaved singlemode fibre

I. Lealman; L.J. Rivers; M.J. Harlow; S.D. Perrin

Electronics Letters | 1997

Low noise figure (7.2 dB) and high gain (29 dB) semiconductor optical amplifier with a single layer AR coating

Anthony E. Kelly; I. Lealman; L.J. Rivers; S.D. Perrin; M. Silver

Electronics Letters | 1996

Polarisation insensitive, 25 dB gain semiconductor laser amplifier without antireflection coatings

Anthony E. Kelly; I.F. Lealman; L.J. Rivers; S.D. Perrin; M. Silver

Electronics Letters | 1994

Low threshold current 1.61 mu m InGaAsP/InP tapered active layer multiquantum well laser with improved coupling to cleaved singlemode fibre

I.F. Lealman; C.P. Seltzer; L.J. Rivers; M.J. Harlow; S.D. Perrin

Electronics Letters | 1995

Multiquantum well electroabsorption modulators for 80 Gbit/s OTDM systems

D.G. Moodie; Andrew D. Ellis; A.R. Thurlow; M.J. Harlow; I. Lealman; S.D. Perrin; L.J. Rivers; Michael J. Robertson

Electronics Letters | 1996

In-line Fabry-Perot optical waveguide filter with quasi-chirped gratings

M. Okai; I.F. Lealman; L.J. Rivers; C. Dix; Michael J. Robertson

Electronics Letters | 1998

Improved gain block for long wavelength (1.55 µm) hybrid integrated devices

I. Lealman; Anthony E. Kelly; L.J. Rivers; S.D. Perrin; R. Moore

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S.D. Perrin

BT Group

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I.F. Lealman

BT Group

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M.J. Harlow

BT Group

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I. Lealman

Suffolk University

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Michael J. Robertson

Suffolk University

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Anthony E. Kelly

University of Glasgow

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C. Dix

BT Group

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C.P. Seltzer

BT Group

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M. Silver

University of Surrey

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Makoto Okai

Hitachi

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