| Photo-excitation in conjugated polymers RH Friend, DDC Bradley, PD Townsend Journal of Physics D: Applied Physics 20 (11), 1367, 1987 | 458 | 1987 |
| Quantum key distribution over distances as long as 30 km C Marand, PD Townsend Optics Letters 20 (16), 1695-1697, 1995 | 397 | 1995 |
| Single photon interference in 10 km long optical fibre interferometer PD Townsend, JG Rarity, PR Tapster Electronics Letters 7 (29), 634-635, 1993 | 378 | 1993 |
| Quantum cryptography on multiuser optical fibre networks PD Townsend Nature 385 (6611), 47-49, 1997 | 347 | 1997 |
| Spectral slicing WDM-PON using wavelength-seeded reflective SOAs P Healey, P Townsend, C Ford, L Johnston, P Townley, I Lealman, ... Electronics Letters 37 (19), 1, 2001 | 301 | 2001 |
| Hybrid DWDM-TDM long-reach PON for next-generation optical access G Talli, PD Townsend Journal of lightwave technology 24 (7), 2827, 2006 | 295 | 2006 |
| Simultaneous quantum cryptographic key distribution and conventional data transmission over installed fibre using wavelength-division multiplexing PD Townsend Electronics Letters 33 (3), 188-190, 1997 | 223 | 1997 |
| Secure key distribution system based on quantum cryptography PD Townsend Electronics Letters 30 (10), 809-811, 1994 | 187 | 1994 |
| Enhanced single photon fringe visibility in a 10 km-long prototype quantum cryptography channel PD Townsend, JG Rarity, PR Tapster Electronics Letters 14 (29), 1291-1293, 1993 | 187 | 1993 |
| A short wavelength gigahertz clocked fiber-optic quantum key distribution system KJ Gordon, V Fernandez, PD Townsend, GS Buller IEEE Journal of Quantum Electronics 40 (7), 900-908, 2004 | 185 | 2004 |
| Performance and design of InGaAs/InP photodiodes for single-photon counting at 1.55 µm PA Hiskett, GS Buller, AY Loudon, JM Smith, I Gontijo, AC Walker, ... Applied Optics 39 (36), 6818-6829, 2000 | 178 | 2000 |
| System and method for key distribution using quantum cryptography PD Townsend US Patent 5,675,648, 1997 | 156 | 1997 |
| Multi-user quantum cryptography on optical networks SJD Phoenix, SM Barnett, PD Townsend, KJ Blow Journal of modern optics 42 (6), 1155-1163, 1995 | 147 | 1995 |
| Quantum cryptography: how to beat the code breakers using quantum mechanics SJD Phoenix, PD Townsend Contemporary physics 36 (3), 165-195, 1995 | 143 | 1995 |
| Observation of nonlinear optical transmission and switching phenomena in polydiacetylene‐based directional couplers PD Townsend, JL Jackel, GL Baker, JA Shelburne III, S Etemad Applied physics letters 55 (18), 1829-1831, 1989 | 135 | 1989 |
| Quantum key distribution system clocked at 2 GHz KJ Gordon, V Fernandez, GS Buller, I Rech, SD Cova, PD Townsend Optics express 13 (8), 3015-3020, 2005 | 131 | 2005 |
| System and method for key distribution using quantum cryptography PD Townsend US Patent 5,675,648, 1997 | 123 | 1997 |
| Experimental investigation of the performance limits for first telecommunications-window quantum cryptography systems PD Townsend IEEE Photonics Technology Letters 10 (7), 1048-1050, 1998 | 120 | 1998 |
| Quantum cryptography on optical fiber networks PD Townsend Optical fiber technology 4 (4), 345-370, 1998 | 116 | 1998 |
| DISCUS: An end-to-end solution for ubiquitous broadband optical access M Ruffini, L Wosinska, M Achouche, J Chen, N Doran, F Farjady, ... IEEE communications magazine 52 (2), S24-S32, 2014 | 115 | 2014 |
