Author Publications

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Number of items: 76.

2013

Aravazhi, S. and Geskus, D. and Dalfsen, K. van and Vazquez-Cordova, S.A. and Grivas, C. and Griebner, U. and Garcia Blanco, S.M. and Pollnau, M. (2013) Engineering lattice matching, doping level, and optical properties of KY(WO4)2:Gd, Lu, Yb layers for a cladding-side-pumped channel waveguide laser. Applied physics B: Lasers and optics, 111 (3). 433 - 446. ISSN 0946-2171

Aravazhi, S. and Geskus, D. and Dalfsen, K. van and Vázquez-Córdova, S.A. and Grivas, C. and Griebner, U. and Garcia Blanco, S.M. and Pollnau, M. (2013) Engineering lattice matching, doping level, and optical properties of $KY(WO_4)_2:Gd,Lu,Yb$ layers for a cladding-side-pumped channel waveguide laser. Applied physics B: Lasers and optics, 111 (3). pp. 433-446. ISSN 0946-2171

Aravazhi, S. and Geskus, D. and Dalfsen, K. van and Vázquez-Córdova, S.A. and Grivas, C. and Griebner, U. and Garcia Blanco, S.M. and Pollnau, M. (2013) Engineering of refractive index and doping level of $KY_{1-x-y-z}Gd_xLu_yYb_z(WO_4)_2$ layers for a cladding-side-pumped channel waveguide laser. In: Conference on Lasers and Electro-Optics Europe, CLEO/EUROPE 2013, 12-16 May 2013, Munich, Germany (pp. Paper CE-6.1).

Aravazhi, S. and Geskus, D. and Dalfsen, K. van and Vázquez-Córdova, S.A. and Grivas, C. and Griebner, U. and Garcia Blanco, S.M. and Pollnau, M. (2013) Engineering of refractive index and doping level of KY1-x-y-zGdxLuyYbz(WO4)2 layers for a cladding-side-pumped channel waveguide laser. In: Conference on Lasers and Electro-Optics Europe, CLEO/EUROPE 2013, Munich, Germany, 01-05-2013, Mulhouse (pp. Paper CE-6.1 - Paper CE-6.1).

Dalfsen, Koop van and Geskus, Dimitri and Garcia Blanco, Sonia M. and Pollnau, Markus (2013) Highly efficient channel waveguide lasers at 1 µm and 2 µm in refractive-index-engineered potassium double tungstates. In: LASE, SPIE Photonics West, 2-7 February 2013, San Francisco, CA, USA (pp. p. 153).

Geskus, D. and Bernhardi, E.H. and Dalfsen, K. van and Aravazhi, S. and Pollnau, M. (2013) Highly efficient $Yb^{3+}$-doped channel waveguide laser at 981 nm. Optics express, 21 (11). pp. 13773-13778. ISSN 1094-4087

2012

Aravazhi, S. and Geskus, D. and Dalfsen, K. van and Garcia Blanco, S.M. and Pollnau, M. (2012) Refractive-index engineering and diode-side-pumped lasing of a rare-earth-ion-doped channel waveguide. In: 17th Annual Symposium of the IEEE Photonics Benelux Chapter, 29-30 November 2012, Mons, Belgium (pp. pp. 215-218).

Ay, Feridun and Geskus, Dimitri and Aravazhi, Shanmugam and Pollnau, Markus (2012) Realization of on-chip lasers in crystalline double tungstate waveguides using focused-ion-beam nanostructuring. In: 8th Nanoscience and Nanotechnology Congress, Nano-TR VIII 2012, 25-29 June 2012, Ankara, Turkey (pp. Paper OP-113).

García-Blanco, S.M. and Geskus, D. and Dalfsen, K. van and Aravazhi, S. and Pollnau, M. (2012) Rare-earth activated potassium double tungstate waveguide amplifiers and lasers. In: Photonics West 2012, The Photonics, Biomedical Optics, MOEMs-MEMs, Industrial Laser Conference and Exhibition, 21-27 January 2012, San Francisco, CA, USA.

Geskus, D. and Aravazhi, S. and Bernhardi, E.H. and Agazzi, L. and García-Blanco, S.M. and Pollnau, M. (2012) Ultra-high, broadband gain in a lattice-engineered, Yb-doped double tungstate channel waveguide. In: 16th European Conference on Integrated Optics, ECIO 2012, 18-20 April 2012, Sitges-Barcelona, Spain.

Geskus, D. and Aravazhi, S. and Bernhardi, E.H. and Agazzi, L. and García-Blanco, S.M. and Pollnau, M. (2012) 150 dB/cm gain over 55 nm wavelength range near 1 µm in an Yb-doped waveguide amplifier. In: Conference on Lasers and Electro-Optics: Science and Innovations, CLEO: S and I, 6-11 May 2012, San Jose, CA, USA (pp. Paper CM1A.6).

Geskus, D. and Grivas, C. and Aravazhi, S. and Griebner, U. and Garcia Blanco, S.M. and Pollnau, M. (2012) Diode-side-pumped channel waveguide laser. In: Europhoton Conference, 26-31 August 2012, Stockholm, Sweden (pp. WeP.5).

Geskus, Dimitri and Aravazhi, Shanmugam and García-Blanco, Sonia M. and Pollnau, Markus (2012) Giant optical gain in a rare-earth-ion-doped microstructure. Advanced Materials, 24 (10). OP19-OP22. ISSN 0935-9648

Pollnau, M. and Bradley, J.D.B. and Bernhardi, E.H. and Agazzi, L. and Geskus, D. and Dalfsen, K. van and Yang, J. and Ay, F. and Driessen, A. and García-Blanco, S.M. and Wörhoff, K. and Ridder, R.M. de (2012) On-chip integrated amplifiers and lasers utilizing rare-earth-ion activation. In: 8th Nanoscience and Nanotechnology Congress, Nano-TR VIII 2012, 25-29 June 2012, Ankara, Turkey.

Pollnau, M. and Dalfsen, K. van and Bernhardi, E.H. and Geskus, D. and Wörhoff, K. and Ridder, R.M. de and García-Blanco, S.M. (2012) Fabrication, operation, and applications of efficient dielectric waveguide lasers. In: International Conference on Advanced Laser Technologies, ALT 2012, 2-6 September 2012, Thun, Switzerland (pp. pp. 150-151).

Pollnau, M. and Geskus, D. and Bernhardi, E.H. and Dalfsen, K. van and Wörhoff, K. and Ridder, R.M. de (2012) Highly efficient solid-state waveguide lasers. In: Advanced Solid-State Photonics, ASSP 2012 - Semiconductor and Waveguide Lasers, 29 January - 3 February 2012, San Diego, CA, USA (pp. AM5A.1).

2011

Agazzi, L. and Akça, I. and Aravazhi, S. and Ay, F. and Bernhardi, E.H. and Çivitci, F. and Dalfsen, K. van and Dijkstra, M. and Garcia Blanco, S.M. and Geskus, D. and Hammer, M. and Hoekstra, H.J.W.M. and Hollink, A.J.F. and Ismail, N. and Pham, S. Van and Ridder, R.M. de and Sengo, G. and Wörhoff, K. and Pollnau, M. (2011) Integrated optical microsystems: guiding light into the future. Focus Magazine, 41 (4). pp. 10-13.

Aravazhi, S. and Geskus, D. and Dalfsen, K. van and Günther, D. and Pollnau, M. (2011) Growth and characterization of highly Yb3+doped KY(WO4)2 thin layers. In: Conference on Lasers and Electro-Optics, CLEO/Europe, 22-26 May 2011, Munich, Germany (pp. Paper CE3.2).

Ay, F. and Geskus, D. and Iñurrategui, I. and Aravazhi, S. and Pollnau, M. (2011) Focused-ion-beam nanostructured photonic cavities for integrated lasers in crystalline double tungstate channel waveguides. In: Conference on Lasers and Electro-Optics, CLEO/Europe, 22-26 May 2011, Munich, Germany (pp. Paper CK8.3).

Ay, F. and Inurrategui, I. and Geskus, D. and Aravazhi, S. and Pollnau, M. (2011) Integrated lasers in crystalline double tungstates with focused-ion-beam nanostructured photonic cavities. Laser Physics Letters, 8 (6). pp. 423-430. ISSN 1612-2011

Ay, Feridun and Gadgil, Vishwas J. and Geskus, Dimitri and Aravazhi, Shanmugam and Wörhoff, Kerstin and Pollnau, Markus (2011) Application of focused ion beam technology for photonic nanostructures. In: 2011 NSTI Nanotechnology Conference & Expo - Nanotech 2011, 13-16 June 2011, Boston, Massachusetts (pp. pp. 200-203).

Dalfsen, K. van and Aravazhi, S. and Geskus, D. and Garcia Blanco, S.M. and Wörhoff, K. and Pollnau, M. (2011) Efficient channel waveguide lasers based on thulium-doped double tungstates. In: Annual Symposium of the IEEE Photonics Benelux Chapter 2011, 1-2 December 2011, Ghent, Belgium (pp. pp. 25-28).

Dalfsen, K. van and Aravazhi, S. and Geskus, D. and Wörhoff, K. and Pollnau, M. (2011) Efficient Gd$^{3+}$, Lu$^{3+}$ co-doped KY(WO$_{4}$)$_{2}$:Tm$^{3+}$ channel waveguide lasers. In: Conference on Lasers and Electro-Optics, CLEO/Europe, 22-26 May 2011, Munich, Germany (pp. Paper CA1.5).

Dalfsen, K. van and Aravazhi, S. and Geskus, D. and Wörhoff, K. and Pollnau, M. (2011) Efficient Tm$^{3+}$ lasers in double tungstate channel waveguides. In: 16th International Conference on Luminescence & Optical Sperctroscopy of Condensed Matter, 26 June - 1 July 2011, Ann Arbor, MI, USA (pp. p. 65).

Dalfsen, K. van and Geskus, D. and Ay, F. and Wörhoff, K. and Aravazhi, S. and Pollnau, M. (2011) High-power Yb- and Tm-doped double tungstate channel waveguide lasers. In: International Quantum Electronics Conference and Conference on Lasers and Electro-Optics Pacific Rim, 28 August - 1 September 2011, Sydney, Australia (pp. Paper 5420).

Dalfsen, K. van and Geskus, D. and Ay, F. and Wörhoff, K. and Aravazhi, S. and Pollnau, M. (2011) High-power Yb- and Tm-doped double tungstate channel waveguide lasers. In: International Laser Physics Workshop, 11-15 July 2011, Sarajevo, Bosnia and Herzegovina (pp. Paper 4.4.4).

Garcia Blanco, Sonia M. and Geskus, Dimitri and Dalfsen, Koop van and Ay, Feridun and Aravazhi, Shanmugam and Pollnau, Markus (2011) Monoclinic double tungstate waveguide amplifiers and microlasers. In: International Conference on Transparent Optical Networks, ICTON 2011, 26-30 June 2011, Stockholm, Sweden.

Garcia-Blanco, Sonia M. and Geskus, Dimitri and Dalfsen, Koop van and Aravazhi, Shanmugam and Pollnau, Markus (2011) Rare-earth-ion-doped double tungstates: A promising gain material for integrated optics. In: 8th International Symposium on Modern Optics and Its Applications, ISMOA 2011, 4-7 July 2011, Bandung, Indonesia (pp. pp. 69-70).

Geskus, D. and Aravazhi, S. and Garcia Blanco, S.M. and Pollnau, M. (2011) Giant optical gain in rare-earth-ion-doped thin films and waveguides. In: International Quantum Electronics Conference and Conference on Lasers and Electro-Optics Pacific Rim, 28 August - 1 September 2011, Sydney, Australia (pp. Paper 4630).

Geskus, D. and Aravazhi, S. and Garcia Blanco, S.M. and Pollnau, M. (2011) Giant optical gain in a rare-earth-ion-doped waveguide amplifier. In: International Laser Physics Workshop, 11-15 July 2011, Sarajevo, Bosnia and Herzegovina (pp. Paper 4.2.4).

Geskus, D. and Aravazhi, S. and Garcia Blanco, S.M. and Pollnau, M. (2011) Ultra-high gain in an Yb3+-doped dielectric waveguide. In: 16th International Conference on Luminescence & Optical Sperctroscopy of Condensed Matter, 26 June - 1 July 2011, Ann Arbor, MI, USA (pp. p. 60).

Geskus, D. and Aravazhi, S. and Garcia Blanco, S.M. and Pollnau, M. (2011) 1000 dB/cm gain in Yb$^{3+}$-doped double tungstates. In: Annual Symposium of the IEEE Photonics Benelux Chapter 2011, 1-2 December 2011, Ghent, Belgium (pp. pp. 29-32).

Geskus, D. and Aravazhi, S. and Garcia Blanco, S.M. and Pollnau, M. (2011) Wavelength-dependent optical gain in a $KGd_xLu_{1-x}(WO_4)_2:Yb^{3+}$ waveguide amplifier. In: IEEE Photonics Conference, PHO 2011, 9-13 October 2011, Arlington, Virginia, USA (pp. pp. 845-846).

Geskus, D. and Aravazhi, S. and Wörhoff, K. and Pollnau, M. (2011) High-power, broadly tunable, and low-quantum-defect Yb3+-doped double tungstate channel waveguide lasers. In: Advanced Solid-State Photonics, ASSP 2011, 13-16 Feb 2011, Istanbul, Turkey (pp. ATuD6(1)-ATuD7(3)).

Geskus, D. and Aravazhi, S. and Wörhoff, K. and Pollnau, M. (2011) Broadly tunable and low-quantum-defect Yb3+-doped double tungstate channel waveguide lasers. In: Conference on Lasers and Electro-Optics, CLEO/Europe, 22-26 May 2011, Munich, Germany (pp. Paper CA7.4).

Geskus, D. and Dalfsen, K. van and Aravazhi, S. and Wörhoff, K. and Pollnau, M. (2011) Yb3+ and Tm3+ doped KGdxLuyY1-x-y(WO4)2 Channel Waveguide Lasers. In: Conference on Lasers and Electro-Optics, CLEO 2011, 1-6 May 2011, Baltimore, Maryland, USA (pp. CWP4).

Geskus, Dimitri (2011) Channel waveguide lasers and amplifiers in single-crystalline Ytterbium-doped potassium double tungstates. thesis.

Geskus, Dimitri and Aravazhi, Shanmugam and Garcia Blanco, Sonia and Pollnau, Markus (2011) Giant gain in a rare-earth-ion-doped waveguide. In: Conference on Lasers and Electro-Optics, CLEO/Europe, 22-26 May 2011, Munich, Germany (pp. Paper CJ2.5).

Geskus, Dimitri and Aravazhi, Shanmugam and Garcia Blanco, Sonia M. and Pollnau, Markus (2011) Giant optical gain in a rare-earth-ion-doped waveguide. In: Conference on Lasers and Electro-Optics, CLEO 2011, 1-6 May 2011, Baltimore, Maryland, USA (pp. PDPA12).

Pollnau, M. and Geskus, D. and Dalfsen, K. van and Garcia Blanco, S.M. and Aravazhi, S. (2011) Highly efficient lasers and amplifiers in double tungstates. In: Joint Annual Meeting of the Swiss Physical Society and the Austrian Physical Society, 15-17 June 2011, Lausanne, Switzerland (pp. Paper 627).

2010

Aravazhi, S. and Geskus, D. and Wörhoff, K. and Pollnau, M. (2010) Gd3+, Lu3+ co-doped KY(WO4)2:Yb3+ planar waveguide lasers at 1025 and 980 nm. In: Symposium K: Rare earth doped materials for optical based technologies, 7-11 June 2010, Strasbourg (pp. pp. 52-53).

Ay, Feridun and Geskus, Dimitri and Inurrategui, Ion and Aravazhi, Shanmugam and Gadgil, Vishwas J. and Wörhoff, Kerstin and Pollnau, Markus (2010) Focused Ion Beam Nanostructured Gratings in Crystalline KYW:$Yb^{3+}$ Channel Waveguides. In: Annual Symposium of the IEEE Photonics Benelux Chapter 2010, 18-19 November 2010, Delft, The Netherlands (pp. pp. 265-268).

Bradley, J.D.B. and Agazzi, L. and Geskus, D. and Ay, F. and Wörhoff, K. and Pollnau, M. (2010) Gain bandwidth of 80 nm and 2 dB/cm peak gain in Al2O3:Er3+ optical amplifiers on silicon. Journal of the Optical Society of America B (Optical physics), 27 (2). pp. 187-196. ISSN 0740-3224

Dalfsen, K. van and Aravazhi, S. and Geskus, D. and Wörhoff, K. and Pollnau, M. (2010) Lattice matching and microstructuring of Gd3+, Lu3+ co-doped KY(WO4)2:Tm3+ channel waveguide lasers. In: European Workshop on Double Tungstate Lasers, 3 September 2010, Hamburg, Germany (pp. p. 9).

Geskus, D. and Aravazhi, S. and Wörhoff, K. and Pollnau, M. (2010) High-power KY(WO4)2:Yb3+ channel waveguide lasers. In: European Workshop on Double Tungstate Lasers, 3 September 2010, Hamburg, Germany (pp. p. 10).

Geskus, D. and Aravazhi, S. and Bernhardi, E. and Grivas, C. and Wörhoff, K. and Pollnau, M. (2010) Low-Threshold and Highly Efficient Gd3+, Lu3+Co-doped KY(WO4)2:Yb3+ Planar Waveguide Lasers. In: Advanced Solid-State Photonics, ASSP, 31 Jan - 3 Feb 2010, San Diego, California, USA (pp. ATuB2).

Geskus, D. and Aravazhi, S. and Grivas, C. and Wörhoff, K. and Pollnau, M. (2010) Microstructured KY(WO4)2:Gd3+, Lu3+, Yb3+ channel waveguide laser. Optics Express, 18 (8). pp. 8853-8858. ISSN 1094-4087

Geskus, D. and Aravazhi, S. and Grivas, C. and Wörhoff, K. and Pollnau, M. (2010) Highly efficient KY(WO$_{4}$)$_{2}$:Gd$^{3+}$, Lu$^{3+}$, Yb$^{3+}$ channel waveguide laser. In: Europhoton Conference, 30 Aug - 3 Sep 2010, Hamburg, Germany.

Geskus, D. and Aravazhi, S. and Grivas, C. and Wörhoff, K. and Pollnau, M. (2010) Microstructured Channel Waveguide Lasers In KY(WO4)2:Gd3+, Lu3+, Yb3+. In: Frontiers in Optics, FIO 2010 - Novel Hybrid Integration II, 24-28 October 2010, Rochester, NY.

Geskus, D. and Aravazhi, S. and Wörhoff, K. and Pollnau, M. (2010) High-gain KY(WO4)2:Yb3+ planar waveguide laser at the zero-phonon line. In: Conference on Lasers and Electro-Optics, CLEO '10, 16-21 May 2010, San Jose, CA (pp. CTuU3).

Geskus, D. and Aravazhi, S. and Wörhoff, K. and Pollnau, M. (2010) Highly efficient Gd, Lu co-doped KYW:Yb$^{3+}$ planar and channel waveguide lasers. In: IV International Workshop on Photonic and Electronic Materials, 5-7 July 2010, San Sebastian, Spain (pp. p. 50).

Geskus, Dimitri and Aravazhi, Shanmugam and Wörhoff, Kerstin and Pollnau, Markus (2010) High-power, broadly tunable, and 
low-quantum-defect KGd1-xLux(WO4)2:Yb3+ channel waveguide lasers. Optics Express, 18 (25). pp. 26107-26112. ISSN 1094-4087

Inurrategi, I. and Ay, F. and Geskus, D. and Aravazhi, S. and Gadgil, V.J. and Wörhoff, K. and Pollnau, M. (2010) Bragg Gratings in Crystalline Waveguides Fabricated by Focused Ion Beam Milling. In: 2nd International Workshop on FIB for Photonics, 6-7 Apr 2010, Cambridge, UK (pp. pp. 8-9).

2009

Aravazhi, S. and Geskus, D. and Gunther, D. and Wörhoff, K. and Pollnau, M. (2009) Growth, characterization, and waveguide lasing of Yb3+, Lu3+, Gd3+ co-doped KY(WO4)2 thin layers. In: International Commission for Optics (ICO) Topical Meeting on Emerging Trends and Novel Materials in Photonics, 7-9 Oct 2009, Delphi, Greece (pp. p. 142).

Aravazhi, S. and Geskus, D. and Günther, D. and Wörhoff, K. and Pollnau, M. (2009) Growth, characterization, and waveguide lasing of Yb3+, Lu3+, Gd3+ co-doped KY(WO4)2 thin layers. In: International Commission for Optics (ICO) Topical Meeting on Emerging Trends and Novel Materials in Photonics, 7-9 Oct 2009, Delphi, Greece.

Aravazhi, S. and Geskus, D. and Wörhoff, K. and Pollnau, M. (2009) Improved-index-contrast KY(WO4)2:Gd, Lu, Yb epitaxial waveguides suitable for highly efficient waveguide lasing. In: 2009 Annual Symposium of the IEEE Photonics Benelux Chapter, 5-6 November 2009, Brussels, Belgium (pp. pp. 133-136).

Bradley, J.D.B. and Agazzi, L. and Geskus, D. and Ay, F. and Wörhoff, K. and Pollnau, M. (2009) 2.0 dB/cm gain in an Al$_2$O$_3$:Er$^{3+}$ waveguide on silicon. In: Conference on Lasers and Electro-Optics, 2-4 June 2009, Baltimore, Maryland, USA (pp. CThCC2).

Bradley, J.D.B. and Agazzi, L. and Geskus, D. and Ay, F. and Wörhoff, K. and Pollnau, M. (2009) Higher gain in 977-nm-pumped Al$_2$O$_3$:Er$^{3+}$ integrated optical amplifiers. In: European Conference on Lasers and Electro-Optics 2009 and the European Quantum Electronics Conference, CLEO Europe - EQEC 2009, 14-19 June 2009, Munich, Germany (pp. CE1.4 MON).

Geskus, D. and Aravazhi, S. and Bernhardi, E. and Grivas, C. and Harkema, S. and Hametner, K. and Günther, D. and Wörhoff, K. and Pollnau, M. (2009) Low-threshold, highly efficient $Gd^{3+}$, $Lu^{3+}$ co-doped $KY(WO_4)_2:Yb^{3+}$ planar waveguide lasers. Laser Physics Letters, 6 (11). pp. 800-805. ISSN 1612-2011

Geskus, D. and Aravazhi, S. and Wörhoff, K. and Pollnau, M. (2009) Low-threshold laser in a high-index-contrast double tungstate waveguide. In: European Conference on Lasers and Electro-Optics 2009 and the European Quantum Electronics Conference, CLEO Europe - EQEC 2009, 14-19 June 2009, Munich, Germany.

Geskus, Dimitri and Aravazhi, Shanmugam and Bernhardi, Edward and Grivas, Christos and Wörhoff, Kerstin and Pollnau, Markus (2009) Highly efficient Gd, Lu co-doped KY(WO4)2:Yb3+ planar waveguide laser. In: Proceedings of the European Optical Society, 1st EOS Topical Meeting on Lasers 2009, 27-30 Sep 2009, Capri, Italy (pp. p. 2172).

Wörhoff, Kerstin and Bradley, Jonathan D.B. and Ay, Feridun and Geskus, Dimitri and Blauwendraat, Tom P. and Pollnau, Markus (2009) Reliable low-cost fabrication of low-loss $Al_2O_3:Er^{3+}$ waveguides with 5.4-dB optical gain. IEEE Journal of Quantum Electronics, 45 (5). pp. 454-461. ISSN 0018-9197

Yang, Jing and Diemeer, Mart B.J. and Geskus, Dimitri and Sengo, Gabriël and Pollnau, Markus and Driessen, Alfred (2009) Neodymium-complex-doped, photo-defined polymer channel waveguide ampliers. Optics Letters, 34 (4). pp. 473-475. ISSN 0146-9592

2008

Aravazhi, S. and Geskus, D. and Wörhoff, K. and Pollnau, M. (2008) Growth of $Yb^{3+}$, $Lu^{3+}$, $Gd^{3+}$ co-doped $KY(WO_4)_2$ thin layers. In: Proceedings of the 13th Annual Symposium of the IEEE LEOS Benelux Chapter, 27-28 November 2008, Enschede, The Netherlands (pp. pp. 219-220).

Bradley, J.D.B. and Agazzi, L. and Geskus, D. and Ay, F. and Wörhoff, K. and Pollnau, M. (2008) Reactively co-sputtered $Al_2O_3:Er^{3+}$ for active photonic devices. In: 2008 Annual Workshop of the IEEE LEOS Benelux Chapter "Materials, Devices and Systems in Optics and Photonics, 30-5-2008, Brussels, Belgium (pp. pp. 9-10).

Bradley, J.D.B. and Agazzi, L. and Geskus, D. and Ay, F. and Wörhoff, K. and Pollnau, M. and Arnoldbik, W.M. (2008) Enhanced gain in Er-doped $Al_2O_3$ channel waveguide amplifiers. In: 13th Annual Symposium of the IEEE LEOS Benelux Chapter, 27-28 November 2008, Enschede, The Netherlands (pp. pp. 131-134).

Bradley, J.D.B. and Agazzi, L. and Geskus, D. and Blauwendraat, T. and Ay, F. and Wörhoff, K. and Pollnau, M. (2008) Investigation of optical gain in $Al_2O_3:Er$ channel waveguide amplifiers. In: Technical Digest Conference on Lasers and Electro-Optics, CLEO 2008, 4-9 May 2008, San Jose, California, U.S.A. (pp. Paper JTuA30).

Bradley, J.D.B. and Geskus, D. and Blauwendraat, T. and Ay, F. and Wörhoff, K. and Pollnau, M. and Kahn, A. and Scheife, H. and Petermann, K. and Huber, G. (2008) Growth, micro-structuring, spectroscopy, and optical gain in as-deposited $Al_2O_3:Er$ waveguides. In: Conference Program and Technical Digest, Advanced Solid-State Photonics: Topical Meeting and Tabletop Exhibit, 27-30 January 2008, Nara, Japan (pp. Paper WB10).

Geskus, D. and Bradley, J.D.B. and Aravazhi, S. and Wörhoff, K. and Pollnau, M. (2008) Poor man's channel waveguide laser: $KY(WO_4)_2:Yb$. In: Conference on Lasers and Electro-Optics (CLEO) 2008, OSA Technical Digest (CD), 4-9 May 2008, San Jose, California, U.S.A. (pp. Paper CTuS4).

Geskus, D. and Bradley, J.D.B. and Aravazhi, S. and Wörhoff, K. and Pollnau, M. (2008) Fibre-top-loaded channel waveguide laser in $KY(WO_4)_2:Yb^{3+}$. In: 2008 Annual Workshop of the IEEE LEOS Benelux Chapter "Materials, Devices and Systems in Optics and Photonics, 30-05-2008, Brussels, Belgium (pp. pp. 13-14).

Wörhoff, K. and Bradley, J.D.B. and Agazzi, L. and Geskus, D. and Ay, F. and Kahn, A. and Scheife, H. and Petermann, K. and Huber, G. and Pollnau, M. (2008) Energy-transfer upconversion in $Al_2O_3:Er^{3+}$ thin layers. In: Second International Workshop on Advanced Spectroscopy and Optical Materials, 13-17 July 2008, Gdansk, Poland (pp. Paper 6-O).

Wörhoff, Kerstin and Bradley, Jonathan and Ay, Feridun and Geskus, Dimitri and Blauwendraat, Tom and Pollnau, Markus (2008) Optimization of $Al_2O_3:Er^{3+}$ waveguide technology for active integrated optical devices. In: Silicon Photonics and Photonic Integrated Circuits, 7-10 April 2008, Strasbourg, France (pp. p. 699618).

Yang, J. and Diemeer, M.B.J. and Geskus, D. and Sengo, G. and Pollnau, M. and Driessen, A. (2008) Neodymium-complex-doped, photo-defined polymer channel waveguide amplifiers. In: 13th Annual Symposium of the IEEE LEOS Benelux Chapter, 27-28 November 2008, Enschede, The Netherlands (pp. pp. 123-126).

Yang, Jing and Diemeer, Mart B.J. and Geskus, Dimitri and Sengo, Gabriël and Pollnau, Markus and Driessen, Alfred (2008) Demonstration of net gain at 1060nm in a Nd-complex-doped, photo-defined polymer channel waveguide. In: 3rd EPS-QEOD Europhoton Conference, August 31 - September 5, 2008, Paris, France (pp. TUoE.4).

2007

Bradley, J.D.B. and Geskus, D. and Blaauwendraat, T. and Ay, F. and Wörhoff, K. and Pollnau, M. (2007) Optimized deposition and structuring of reactively co-sputtered $AL_2O_3:Er$ waveguide layers with net optical gain. In: 12th Annual Symposium IEEE/LEOS Benelux, 17-18 December 2007, Brussels, Belgium (pp. pp. 107-110).

Geskus, D. and Bradley, J.D.B. and Aravazhi, S. and Wörhoff, K. and Pollnau, M. (2007) Progress on micro-structured $KY{(WO_4)}_2$ waveguides for optically active devices. In: 12th Annual Symposium IEEE/LEOS Benelux, 17-18 December 2007, Brussels, Belgium (pp. pp. 103-106).

This list was generated on Thu Jul 10 05:27:57 2014 CEST.