Leader in Integrated ICT Hardware & Systems
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.
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.
| Funder | Start Date | End Date | Title | Role |
|---|---|---|---|---|
| Science Foundation of Ireland | 01-JAN-14 | 31-OCT-15 | Narrow linewidth tunable lasers for coherent telecommunications. | Principal Investigator |
| Year | Publication |
|---|---|
| 1996 | Dynamical studies of cavity polaritons in semiconductor microcavities J. P. Doran, A. L. Bradley, B. Roycroft, T. Aherne, J. Hegarty, R. P. Stanley, R. Houdré, U. Oesterle and M. Ilegems (1996) Dynamical studies of cavity polaritons in semiconductor microcavities. : Kluwer Academic Publishers. |
| Year | Journal | Publication |
|---|---|---|
| 2013 | Optical and Quantum Electronics | PIN-photodiode with a large spot size input waveguide Wieczorek, A,Yang, H,Roycroft, B,Peters, FH,Corbett, B (2013) PIN-photodiode with a large spot size input waveguide. : . [Details] |
| 2013 | Optics Express | On-chip optical phase locking of single growth monolithically integrated slotted fabry perot lasers Morrissey, PE,Cotter, W,Goulding, D,Kelleher, B,Osborne, S,Yang, H,O'Callaghan, J,Roycroft, B,Corbett, B,Peters, FH (2013) On-chip optical phase locking of single growth monolithically integrated slotted fabry perot lasers. : . [Details] |
| 2013 | Optics Express | On-chip optical phase locking of single growth monolithically integrated slotted fabry perot lasers Morrissey, PE and Cotter, W and Goulding, D and Kelleher, B and Osborne, S and Yang, H and O’Callaghan, J and Roycroft, B and Corbett, B and Peters, FH (2013) On-chip optical phase locking of single growth monolithically integrated slotted fabry perot lasers. : . |
| 2013 | IEEE Photonics Technology Letters | Monolithic Integration of Single Facet Slotted Laser, SOA, and MMI Coupler Yang, H,Morrissey, P,Cotter, W,Daunt, CLM,O'Callaghan, J,Roycroft, B,Ye, N,Kelly, N,Corbett, B,Peters, FH (2013) Monolithic Integration of Single Facet Slotted Laser, SOA, and MMI Coupler. : . [Details] |
| 2012 | Applied Optics | 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. : . |
| 2012 | IEEE Photonics Technology Letters | 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. : . [Details] |
| 2011 | IEEE Photonics Technology Letters | Semiconductor and Organic Lasers and Amplifiers-Integration of AlInGaAs-MQW Fabry-P'erot Lasers With Emission at Two Wavelength Ranges via Quantum-Well Intermixing Lee, KH and Roycroft, B and O'Callaghan, J and Daunt, CLLM and Yang, H and Song, JH and Peters, FH and Corbett, B (2011) Semiconductor and Organic Lasers and Amplifiers-Integration of AlInGaAs-MQW Fabry-P'erot Lasers With Emission at Two Wavelength Ranges via Quantum-Well Intermixing. : . |
| 2011 | IEEE Journal of Selected Topics In Quantum Electronics | 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. : . |
| 2011 | Optics Communications | 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. : . |
| 2010 | Journal of Lightwave Technology | 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. : . |
| 2010 | Journal of Lightwave Technology | Fast Switching Slotted Fabry Perot Laser for Phase Modulated Transmission Systems K. Shi, F. Smyth, D. Reid, C. Browning, B. Roycroft, B. Corbett, F. H. Peters, J. Donegan and L. P. Barry; (2010) Fast Switching Slotted Fabry Perot Laser for Phase Modulated Transmission Systems. : . |
| 2010 | Optical Engineering | Experimental investigation of laser welding assembling sequences for butterfly laser module packages J. H. Song, B. Roycroft, B. Corbett, and F. H. Peters; (2010) Experimental investigation of laser welding assembling sequences for butterfly laser module packages. : . |
| 2010 | IEEE Photonics Technology Letters | 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. : . [Details] |
| 2010 | Journal of Lightwave Technology | 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. : . [Details] |
| 2009 | Journal of Lightwave Technology | 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. : . [Details] |
| 2009 | IEEE Photonics Technology Letters | Heterodyne Method for Time Resolved Spectral Analysis of Fast Laser Wavelength Switching Engelstaedter, JP,Roycroft, B,Peters, FH,Corbett, B; (2009) Heterodyne Method for Time Resolved Spectral Analysis of Fast Laser Wavelength Switching. : . [Details] |
| 2009 | Journal of Lightwave Technology | 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. : . [Details] |
| 2009 | IEEE Journal of Selected Topics In Quantum Electronics | Discretely Tunable Semiconductor Lasers Suitable For Photonic Integration Byrne, DC, Engelstaedter, JP, Guo, WH, Lu, QY, Corbett, B, Roycroft, B, O'Callaghan, J, Peters, FH, Donegan, JF; (2009) Discretely Tunable Semiconductor Lasers Suitable For Photonic Integration. : . [Details] |
| 2008 | Physica Status Solidi (C) | High brightness near-ultraviolet resonant LEDs Corbett, B and Zhu, D and Roycroft, B and Maaskant, P and Akhter, M and McAleese, C and Kappers, MJ and Humphreys, CJ (2008) High brightness near-ultraviolet resonant LEDs. : . |
| 2008 | IEEE Journal of Quantum Electronics | 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. : . [Details] |
| 2008 | Electronics Letters | Laser and detector using integrated reflector for photonic integration Engelstaedter, JP,Roycroft, B,Corbett, B (2008) Laser and detector using integrated reflector for photonic integration. : . [Details] |
| 2008 | IEEE Journal of Quantum Electronics | 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. : . [Details] |
| 2007 | IEEE Photonics Technology Letters | 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. : . [Details] |
| 2007 | IEEE Photonics Technology Letters | 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. : . |
| 2007 | IEEE Photonics Technology Letters | 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. : . [Details] |
| 2006 | IEEE Photonics Technology Letters | 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. : . [Details] |
| 2006 | IEEE Photonics Technology Letters | 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. : . [Details] |
| 2004 | Optics Express | Origin of power fluctuations in GaN resonant-cavity light-emitting diodes Roycroft, B,Akhter, M,Maaskant, P,Corbett, B,Shaw, A,Bradley, L,de Mierry, P,Poisson, MA (2004) Origin of power fluctuations in GaN resonant-cavity light-emitting diodes. : . |
| 2002 | Physica Status Solidi (A) | Papers presented at the 4th International Symposium on Blue Lasers and Light Emitting Diodes (ISBLLED2002). Cordoba, Spain, March 11-15, 2002-Part 1-Optoelectronic properties-Experimental Roycroft, B and Akhter, M and Maaskant, P and Mierry, P de and Fernandez, S and Naranjo, FB and Calleja, E and McCormack, T and Corbett, B (2002) Papers presented at the 4th International Symposium on Blue Lasers and Light Emitting Diodes (ISBLLED2002). Cordoba, Spain, March 11-15, 2002-Part 1-Optoelectronic properties-Experimental. : . |
| 2002 | Physica Status Solidi (A) | Experimental Characterisation of GaN-Based Resonant Cavity Light Emitting Diodes Roycroft, B and Akhter, M and Maaskant, P and De Mierry, P and Fernandez, S and Naranjo, FB and Calleja, E and McCormack, T and Corbett, B (2002) Experimental Characterisation of GaN-Based Resonant Cavity Light Emitting Diodes. : . |
| 2002 | Electronics Letters | 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. : . |
| 2002 | Physica Status Solidi A-Applications and Materials Science | Experimental characterisation of GaN-based resonant cavity light emitting diodes Roycroft, B,Akhter, M,Maaskant, P,de Mierry, P,Fernandez, S,Naranjo, FB,Calleja, E,McCormack, T,Corbett, B (2002) Experimental characterisation of GaN-based resonant cavity light emitting diodes. : . |
| 2002 | Electronics Letters | 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. : . [Details] |
| 2002 | Physica Status Solidi (A) | 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. : . |
| Year | Journal | Publication |
|---|---|---|
| 2010 | 36th European Conf. and Exhibition on Optical Communication (ECOC) | 10.7 Gbd DQPSK packet transmission using a widely tunable slotted Fabry--Perot laser Smyth, F and Browning, C and Shi, K and Peters, F and Corbett, B and Roycroft, B and Barry, LP (2010) 10.7 Gbd DQPSK packet transmission using a widely tunable slotted Fabry--Perot laser. : . |
| 2010 | Photonics Technology Letters, IEEE | Wavelength tunable laser using an interleaved rear reflector Engelstaedter, JP and Roycroft, B and Peters, FH and Corbett, B (2010) Wavelength tunable laser using an interleaved rear reflector. : . |
| 2009 | Photonics Technology Letters, IEEE | Heterodyne method for time resolved spectral analysis of fast laser wavelength switching Engelstaedter, JP and Roycroft, B and Peters, FH and Corbett, B (2009) Heterodyne method for time resolved spectral analysis of fast laser wavelength switching. : . |
| 2008 | Electronics Letters | Laser and detector using integrated reflector for photonic integration Engelstaedter, JP and Roycroft, B and Corbett, B (2008) Laser and detector using integrated reflector for photonic integration. : . |
| 2007 | Photonics Technology Letters, IEEE | Transition From Perturbed to Coupled-Cavity Behavior With Asymmetric Spectral Emission in Ridge Lasers Emitting at 1.55 $mu$m Roycroft, B and Lambkin, P and Riesner, S and Corbett, B and Donegan, JF (2007) Transition From Perturbed to Coupled-Cavity Behavior With Asymmetric Spectral Emission in Ridge Lasers Emitting at 1.55 $mu$m. : . |
| Year | Publication |
|---|---|
| 2014 | Semiconductor Laser Conference (ISLC), 2014 International Ramaswamy, P. ; Roycroft, B. ; OCallaghan, J. ; Janer, C.L. ; Peters, F.H. ; Corbett, B. (2014) Semiconductor Laser Conference (ISLC), 2014 International . : . [Details] |
| 2012 | CLEO conference 2012,San Jose, CA, USA, 6-11 May 2012. Roycroft, B. and O'Callaghan, J. and Thomas, K. and Pelucchi, E. and Peters, F. and Corbett, B. (2012) CLEO conference 2012,San Jose, CA, USA, 6-11 May 2012.. : . |
| 2012 | Indium Phosphide and Related Materials (IPRM), 2012 International Conference on Morrissey, PE and Cotter, W and O'Callaghan, J and Yang, H and Roycroft, B and Goulding, D and Corbett, B and Peters, Frank H (2012) Indium Phosphide and Related Materials (IPRM), 2012 International Conference on. : . |
| 2011 | Transparent Optical Networks (ICTON), 2011 13th International Conference on O'Dowd, John A and Bessler, Vivian M and Ibrahim, Selwan K and Walsh, Anthony J and Peters, FH and Corbett, B and Roycroft, B and Brien, PO and Ellis, Andrew D (2011) Transparent Optical Networks (ICTON), 2011 13th International Conference on. : . |
| 2011 | CLEO/Europe-EQEC W. Cotter, D. Goulding, B. Roycroft, B. Corbett and F. Peters; (2011) CLEO/Europe-EQEC . : . |
| 2011 | Photonics Ireland R.N. Sheehan, K. Thomas, J. O¿Callaghan, B. Roycroft, B. Corbett, F.H. Peters; (2011) Photonics Ireland. : . |
| 2011 | OFC F. Smyth, K. Shi, P.M. Anandarajah, B. Roycroft, B. Corbett, F. H. Peters and L. P. Barry; (2011) OFC . : . |
| 2010 | OFC K. Shi, F. Smyth, D. Reid, B. Roycroft, B. Corbett, J.H. Song, P. O¿Brien, F. H. Peters and L. P. Barry; (2010) OFC. : . |
| 2010 | OFC K. Shi, F. Smyth, D. Reid, R. Maher, B. Roycroft, B. Corbett, F. H. Peters, P. Anandarajah, L. P. Barry; (2010) OFC. : . |
| 2010 | Optical Communication (ECOC), 2010 36th European Conference and Exhibition on Smyth, F and Browning, C and Shi, K and Peters, F and Corbett, B and Roycroft, B and Barry, LP (2010) Optical Communication (ECOC), 2010 36th European Conference and Exhibition on. : . |
| 2010 | Indium Phosphide & Related Materials (IPRM), 2010 International Conference on Engelstaedter, JP and Roycroft, B and Peters, FH and Corbett, B (2010) Indium Phosphide & Related Materials (IPRM), 2010 International Conference on. : . |
| 2009 | LEOS Annual Meeting Conference Proceedings, 2009. LEOS'09. IEEE Engelstaedter, JP and Roycroft, B and Peters, FH and Corbett, B and Ryan, N and Todd, M (2009) LEOS Annual Meeting Conference Proceedings, 2009. LEOS'09. IEEE. : . |
| 2009 | Photonics Ireland W. Cotter, B. Roycroft, B. Corbett, F. Peters; (2009) Photonics Ireland. : . |
| 2008 | Transparent Optical Networks, 2008. ICTON 2008. 10th Anniversary International Conference on Guo, W-H and Byrne, D and Lu, Q-Y and Donegan, JF and Engelstaedter, JP and Corbett, B and Roycroft, B and Peters, FH (2008) Transparent Optical Networks, 2008. ICTON 2008. 10th Anniversary International Conference on. : . |
| 2007 | SPIE The International society for optical engineering Proceedings 6797-23 Zhu, D and Corbett, B and Roycroft, B and Maaskant, P and McAleese, C and Akhter, M and Kappers, MJ and Humphreys, CJ (2007) SPIE The International society for optical engineering Proceedings 6797-23. : . |
| 2006 | Optical Communications, 2006. ECOC 2006. European Conference on Smyth, F and Roycroft, B and Corbett, B and Lambkin, P and Barry, LP (2006) Optical Communications, 2006. ECOC 2006. European Conference on. : . |
| 2005 | OPTO-Ireland Justice, J and Lambkin, P and Roycroft, B and Corbett, B (2005) OPTO-Ireland. : . |
| Year | Publication |
|---|---|
| 2012 | TE/TM-mode pass polarizers and splitter based on an asymmetric twin waveguide and resonant coupling Wieczorek, A,Roycroft, B,Peters, FH,Corbett, B (2012) TE/TM-mode pass polarizers and splitter based on an asymmetric twin waveguide and resonant coupling. : . [Details] |
| 2011 | Loss analysis and increasing of the fabrication tolerance of resonant coupling by tapering the mode beating section Wieczorek, A,Roycroft, B,Peters, FH,Corbett, B (2011) Loss analysis and increasing of the fabrication tolerance of resonant coupling by tapering the mode beating section. : . [Details] |
| 2008 | Single Growth Platform For Integration of Tuneable Laser and Semiconductor Optical Amplifier Engelstaedter, JP, Roycroft, B, Peters, FH, Corbett, B, Guo, WH, Byrne, D, Lu, QY, Donegan, JF; (2008) Single Growth Platform For Integration of Tuneable Laser and Semiconductor Optical Amplifier. : . |