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Staff Researcher at Tyndall National Institute

Dr. Roycroft has worked in the Tyndall National Institute, Ireland, since September 2001 and has interests in designing and testing novel telecoms lasers, green and red resonant cavity LEDs, and red and near infra-red VCSELs. Currently he is working on the Centre for Telecoms Value-chain-driven Research (CTVR) project, an industrially and nationally funded project between Alcatel/Lucent Technologies and all the major Irish universities, developing integrated tunable lasers for flexible network performance, and recently started became PI developing narrow linewidth tunable lasers for coherent telecommunications.

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Brendan Roycroft
Staff Researcher at Tyndall National Institute
Funded Investigator
Tyndall National Institute

Tyndall National Institute Trinity College, Dublin

+353 (0)21 2346087

2011)

'Design, Characterisation and Application of Index-Patterned Fabry-Perot Lasers'
S. O'Brien, F. Smyth, K. Shi, J. O¿Carroll, P. Anandarajah, D. Bitauld, S. Osborne, R. Phelan, B. Kelly, J. O¿Gorman, F. Peters, B. Roycroft, B. Corbett, and L.P. Barry; (2011) 'Design, Characterisation and Application of Index-Patterned Fabry-Perot Lasers'. IEEE Journal of Selected Topics In Quantum Electronics, 17 (6):1621-1631 [Details]

 

(2009)

'Practical Design of Lensed Fibers For Semiconductor Laser Packaging Using Laser Welding Technique'
Song, JH, Fernando, HNJ, Roycroft, B, Corbett, B, Peters, FH; (2009) 'Practical Design of Lensed Fibers For Semiconductor Laser Packaging Using Laser Welding Technique'. Journal of Lightwave Technology, 27 (11):1533-1539 [DOI] [Details]

 

(2002)

'Fabrication of GaN-Based Resonant Cavity LEDs'
Maaskant, P and Akhter, M and Roycroft, B and O'Carroll, E and Corbett, B (2002) 'Fabrication of GaN-Based Resonant Cavity LEDs'. Physica Status Solidi (A), 192 (2):348-353 [Details]

 

(2011)

'Characterization of a tunable three-section slotted Fabry--Perot laser for advanced modulation format optical transmission'
Shi, K and Smyth, F and Reid, D and Roycroft, B and Corbett, B and Peters, FH and Barry, LP (2011) 'Characterization of a tunable three-section slotted Fabry--Perot laser for advanced modulation format optical transmission'. Optics Communications, 284 (6):1616-1621 [Details]

 

(2010)

'Fast Switching Slotted Fabry-Perot Laser for Phase Modulated Transmission Systems'
Shi, K,Smyth, F,Reid, DA,Browning, C,Roycroft, B,Corbett, B,Peters, FH,Barry, LP (2010) 'Fast Switching Slotted Fabry-Perot Laser for Phase Modulated Transmission Systems'. Journal of Lightwave Technology, 28 :3409-3416 [DOI] [Details]

 

(2013)

'Experimental technique for quick and efficient lensed fibre to ridge waveguide coupling'
Morrissey, PE,Goulding, D,Sheehan, R,Roycroft, B,Peters, FH (2013) 'Experimental technique for quick and efficient lensed fibre to ridge waveguide coupling'. Iet Optoelectronics, 7 :57-61 [DOI] [Details]

 

(2011)

'Characterization of a tunable three-section slotted Fabry-Perot laser for advanced modulation format optical transmission'
Shi, K,Smyth, F,Reid, D,Roycroft, B,Corbett, B,Peters, FH,Barry, LP (2011) 'Characterization of a tunable three-section slotted Fabry-Perot laser for advanced modulation format optical transmission'. Optics Communications, 284 :1616-1621 [DOI] [Details]

 

(2002)

'200 Mbit/s data transmission through 100 m of plastic optical fibre with nitride LEDs'
Akhter, A,Maaskant, P,Roycroft, B,Corbett, B,de Mierry, P,Beaumont, B,Panzer, K (2002) '200 Mbit/s data transmission through 100 m of plastic optical fibre with nitride LEDs'. Electronics Letters, 38 :1457-1458 [DOI] [Details]

 

(2011)

'Design, Characterization, and Applications of Index-Patterned Fabry-Perot Lasers'
O'Brien, S,Smyth, F,Shi, K,O'Carroll, J,Anandarajah, PM,Bitauld, D,Osborne, S,Phelan, R,Kelly, B,O'Gorman, J,Peters, FH,Roycroft, B,Corbett, B,Barry, LP (2011) 'Design, Characterization, and Applications of Index-Patterned Fabry-Perot Lasers'. IEEE Journal of Selected Topics In Quantum Electronics, 17 :1621-1631 [DOI] [Details]

 

(2012)

'Investigation of active filter using injection-locked slotted Fabry-Perot semiconductor laser'
Cotter, W,Goulding, D,Roycroft, B,O'Callaghan, J,Corbett, B,Peters, FH (2012) 'Investigation of active filter using injection-locked slotted Fabry-Perot semiconductor laser'. Journal of Applied Optics, 51 :7357-7361 [Details]

 

(2012)

'Voltage Spectroscopy and the Operating State of an Optically Injected Long Wavelength VCSEL'
Daly, A,Grundl, T,Huber, S,Muller, M,Roycroft, B,Amann, MC,Corbett, B (2012) 'Voltage Spectroscopy and the Operating State of an Optically Injected Long Wavelength VCSEL'. IEEE Photonics Technology Letters, 24 :1245-1247 [DOI] [Details]

 

(2010)

'Characterization of a tunable Three-Section Slotted Fabry Perot Laser for Advanced Modulation Format Optical Transmission'
K. Shi, F. Smyth, D. Reid, B. Roycroft. B. Corbett, F. H. Peters and L. P. Barry; (2010) 'Characterization of a tunable Three-Section Slotted Fabry Perot Laser for Advanced Modulation Format Optical Transmission'. Journal of Lightwave Technology, 28 (23) [Details]

 

(2011)

'Integration of AlInGaAs-MQW Fabry-Perot Lasers With Emission at Two Wavelength Ranges via Quantum-Well Intermixing'
Lee, KH,Roycroft, B,O'Callaghan, J,Daunt, CLLM,Yang, H,Song, JH,Peters, FH,Corbett, B; (2011) 'Integration of AlInGaAs-MQW Fabry-Perot Lasers With Emission at Two Wavelength Ranges via Quantum-Well Intermixing'. IEEE Photonics Technology Letters, 23 :27-29 [DOI] [Details]

 

(2008)

'A novel two-section tunable discrete mode Fabry-Perot laser exhibiting nanosecond wavelength switching'
Phelan, R,Guo, WH,Lu, QY,Byrne, D,Roycroft, B,Lambkin, P,Corbett, B,Smyth, F,Barry, LP,Kelly, B,O'Gorman, J,Donegan, JF; (2008) 'A novel two-section tunable discrete mode Fabry-Perot laser exhibiting nanosecond wavelength switching'. IEEE Journal of Quantum Electronics, 44 :331-337 [DOI] [Details]

 

(2010)

'Wavelength Tunable Laser Using an Interleaved Rear Reflector'
Engelstaedter, JP,Roycroft, B,Peters, FH,Corbett, B; (2010) 'Wavelength Tunable Laser Using an Interleaved Rear Reflector'. IEEE Photonics Technology Letters, 22 :54-56 [DOI] [Details]

 

(2010)

'Experimental investigation of laser welding assembling sequences for butterfly laser module packages'
Song, JH,Roycroft, B,Corbett, B,Peters, FH; (2010) 'Experimental investigation of laser welding assembling sequences for butterfly laser module packages'. Optical Engineering, 49 [DOI] [Details]

 

(2006)

'Fast Wavelength Switching Lasers Using Two-Section Slotted Fabry-Perot Structures'
Smyth, F, Connolly, E, Roycroft, B, Corbett, B, Lambkin, P, Barry, LP; (2006) 'Fast Wavelength Switching Lasers Using Two-Section Slotted Fabry-Perot Structures'. IEEE Photonics Technology Letters, 18 (17-20):2105-2107 [DOI] [Details]

 

(2007)

'Transition From Perturbed to Coupled-Cavity Behavior With Asymmetric Spectral Emission In Ridge Lasers Emitting At 1.55 Mu M'
Roycroft, B, Lambkin, P, Riesner, S, Corbett, B, Donegan, JF; (2007) 'Transition From Perturbed to Coupled-Cavity Behavior With Asymmetric Spectral Emission In Ridge Lasers Emitting At 1.55 Mu M'. IEEE Photonics Technology Letters, 19 (2-4):58-60 [DOI] [Details]

 

(2007)

'A Multiwavelength Low-Power Wavelength-Locked Slotted Fabry-Perot Laser Source For Wdm Applications'
Mondal, SK, Roycroft, B, Lambkin, P, Peters, F, Corbett, B, Townsend, P, Ellis, A; (2007) 'A Multiwavelength Low-Power Wavelength-Locked Slotted Fabry-Perot Laser Source For Wdm Applications'. IEEE Photonics Technology Letters, 19 (9-12):744-746 [DOI] [Details]

 

(2002)

'200 Mbit/s data transmission through 100 m of plastic optical fibre with nitride LEDs'
Akhter, M and Maaskant, P and Roycroft, B and Corbett, B and de Mierry, P and Beaumont, B and Panzer, K (2002) '200 Mbit/s data transmission through 100 m of plastic optical fibre with nitride LEDs'. Electronics Letters, 38 (23):1457-1458 [Details]

 

(2007)

'A multiwavelength low-power wavelength-locked slotted Fabry--Perot laser source for WDM applications'
Mondal, SK and Roycroft, B and Lambkin, P and Peters, F and Corbett, B and Townsend, P and Ellis, A (2007) 'A multiwavelength low-power wavelength-locked slotted Fabry--Perot laser source for WDM applications'. IEEE Photonics Technology Letters, 19 (10):744-746 [Details]

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