H. Odriozola, J.M.G. Tijero, L. Borruel, I. Esquivia, H. Wenzel, F. Dittmar, K. Paschke, B. Sumpf, and G. Erbert
"Beam Properties of 980-nm Tapered Lasers With Separate Contacts: Experiments and Simulations"
IEEE J. Quantum Electron., vol. 45, no. 1, pp. 42-49 (2009).

P. Crump, H. Wenzel, P. Ressel, G. Erbert and G. Tränkle
"Multiple vertical mode high power 975 nm diode lasers restricted to single vertical mode operation through use of optical facet coatings"
Electron. Lett., vol. 45, no. 1, pp. 51-53 (2009).

C. Chen, P. Leisher, S. Patterson, P. Crump, Y.K. Kim and K. Choquette
"Stabilization of lateral mode transients in high-power broad area semiconductor lasers"
Appl. Phys. Lett., vol. 94, no. 011107 (2009).

M. Maiwald, D. Jedrzejczyk, A. Sahm, K. Paschke, R. Güther, B. Sumpf, G. Erbert, and G. Tränkle
"Second-harmonic-generation microsystem light source at 488 nm for Raman spectroscopy"
Opt. Lett., vol. 34, no. 2, pp. 217-219 (2009).

H.-E. Porteanu, S. Kühn, and R. Gesche
"Low-Power Microwave Plasma Conductivity"
IEEE Trans. on Plasma Science, vol. 37, no. 1, pp. 44-49 (2009).

M. Rudolph, F. Bonani
"Low-Frequency Noise in Nonlinear Systems"
IEEE Microwave Mag., vol. 10, no. 1, pp. 84-92 (2009).

A. Knauer, T. Kolbe, S. Einfeldt, M. Weyers, M. Kneissl, and T. Zettler
"Optimization of InGaN/(In,Al,Ga)N based near UV-LEDs by MQW strain balancing with in-situ wafer bow sensor"
phys. stat. sol. (a), vol. 206, no. 2, pp. 211-214 (2009).

T. Kolbe, A. Knauer, H. Wenzel, S. Einfeldt, V. Kueller, P. Vogt, M. Weyers, and M. Kneissl
"Emission characteristics of InGaN multi quantum well light emitting diodes with differently strained InAlGaN barriers"
phys. stat. sol. (c), vol. 6, no. S2, pp. S889-S892 (2009).

P. Klopp, U. Griebner, M. Zorn, A. Klehr, A. Liero, G. Erbert, and M. Weyers
"InGaAs-AlGaAs Disk Laser Generating sub-220-fs Pulses and Tapered Diode Amplifier with Ultrafast Pulse Picking"
Advanced Solid-State Photonics 2009 (ME3). Advanced Solid-State Photonics 2009, Washington, DC, USA. ISBN: 978-1-55752-864-3.

A. Schmidt, X. Mateos, V. Petrov, U. Griebner, R. Peters, K. Petermann, G. Huber, A. Klehr, G. Erbert
"Passively Mode-Locked Yb:LuScO₃ Oscillator"
Advanced Solid-State Photonics 2009 (MB12). Advanced Solid-State Photonics 2009, Washington, DC, USA. ISBN: 978-1-55752-864-3.

A. Pietrzak, P. Crump, H. Wenzel, R. Staske, G. Erbert and G. Tränkle
"55 W peak power from 1100 nm wavelength 60 µm broad-area laser diodes enabled by reduced carrier accumulation in the waveguide"
Semicond. Sci. Technol., vol. 24, no. 035020 (2009).

F. Bugge, M. Zorn, U. Zeimer, A. Pietrzak, G. Erbert, M. Weyers
"MOVPE growth of InGaAs/GaAsP-MQWs for high-power laser diodes studied by reflectance anisotropy spectroscopy"
J. Cryst. Growth, vol. 311, no. 4, pp. 1065-1069 (2009).

X. Wang, P. Crump, A. Pietrzak, C. Schultz, A. Klehr, T. Hoffmann, A. Liero, A. Ginolas, S. Einfeldt, F. Bugge, G. Erbert, and G. Tränkle
"Assessment of the limits to peak power of 1100nm broad area single emitter diode lasers under short pulse conditions"
Proc. SPIE, vol. 7198, no. 71981G (2009).

P. Crump, G. Blume, K. Paschke, R. Staske, A. Pietrzak, U. Zeimer, S. Einfeldt, A. Ginolas, F. Bugge, K. Häusler, P. Ressel, H. Wenzel, and G. Erbert
"20W continuous wave reliable operation of 980nm broad-area single emitter diode lasers with an aperture of 96µm"
Proc. SPIE, vol. 7198, no. 719814 (2009).

P. Adamiec, B. Sumpf, D. Feise, K.-H. Hasler, P. Ressel, H. Wenzel, M. Zorn, M. Weyers, G. Erbert, and G. Tränkle
"Twin-Contact 645-nm Tapered Laser With 500-mW Output Power"
IEEE Photonics Technol. Lett., vol. 21, no. 4, pp. 236-238 (2009).

C.H. Kwok, R.V. Penty, I.H. White, K.-H. Hasler, B. Sumpf, and G. Erbert
"High Modulation Efficiency Gigabit/s Modulation of Twin-Contact High-Brightness Tapered DBR Laser"
IEEE Photonics Technol. Lett., vol. 21, no. 5, pp. 301-303(2009).

I. Khalil, E. Bahat-Treidel, F. Schnieder, and J. Würfl
"Improving the Linearity of GaN HEMTs by Optimizing Epitaxial Structure"
IEEE Trans. Electron Devices, vol. 56, no. 3, pp. 361-364 (2009).

H.E. Porteanu, S. Kühn, and R. Gesche
"Ignition Delay for Atmospheric Pressure Microplasmas"
Contrib. Plasma Phys., vol. 49, no. 1-2, pp. 21-26 (2009).

O.B. Jensen, P.E. Andersen, B. Sumpf, K.-H. Hasler, G. Erbert, and P.M. Petersen
"1.5 W green light generation by single-pass second harmonic generation of a single frequency tapered diode laser"
Opt. Express, vol. 17, no. 8, pp. 6532-6539 (2009).

M. Rudolph, N. Chaturvedi, K. Hirche, J. Würfl, W. Heinrich, and G. Tränkle
"Highly Rugged 30 GHz GaN Low-Noise Amplifiers"
IEEE Microwave Wireless Compon. Lett., vol. 19, no. 4, pp. 251-253 (2009).

C.M. Schultz, P. Crump, H. Wenzel, O. Brox, F. Bugge, and G. Erbert
"Narrow Vertical Far-Field 975-nm Broad-Area DFB Lasers for Wide Temperature Range Operation"
IEEE Photonics Technol. Lett., vol. 21, no. 9, pp. 593-595 (2009).

B. Sumpf, K.-H. Hasler, P. Adamiec, F. Bugge, J. Fricke, P. Ressel, H. Wenzel, G. Erbert, G. Tränkle
"1060 nm DBR tapered lasers with 12 W output power and a nearly diffraction limited beam quality"
Proc. SPIE, vol. 7230, no. 72301E (2009).

A. Knauer, F. Brunner, T. Kolbe, V. Küller, H. Rodriguez, S. Einfeldt, M. Weyers, M. Kneissl
"MOVPE growth for UV-LEDs"
Proc. SPIE, vol. 7231, no. 72310G (2009).

M. Maiwald, H. Schmidt, B. Sumpf, G. Erbert, H.-D. Kronfeldt, and G. Tränkle
"Microsystem 671 nm light source for shifted excitation Raman difference spectroscopy"
Appl. Opt., vol. 48, no. 15, pp. 2789-2792 (2009).

M. Spreemann, M. Lichtner, M. Radziunas, U. Bandelow, and H. Wenzel
"Measurement and Simulation of Distributed-Feedback Tapered Master-Oscillator Power Amplifiers"
IEEE J. Quantum Electron., vol. 45, no. 6, pp. 609-616 (2009).

C. Netzel, J. Skriniarova, M. Herms, H. Wenzel, V. Hoffmann, A. Knauer, and M. Weyers
"Experimental method for scanning the surface depletion region in nitride based heterostructures"
phys. stat. sol. (c), vol. 6, no. S2, pp. S691-S694 (2009).

H. Wenzel, K. Häusler, G. Blume, J. Fricke, M. Spreemann, M. Zorn, and G. Erbert
"High-power 808 nm ridge-waveguide diode lasers with very small divergence, wavelength-stabilized by an external volume Bragg grating"
Opt. Lett., vol. 34, no. 11, pp. 1627-1629 (2009).

T. Wernicke, U. Zeimer, C. Netzel, F. Brunner, A. Knauer, M. Weyers, M. Kneissl
"Epitaxial lateral over growth on (21¯1¯0) α-plane GaN with [01¯ 11]-oriented stripes"
J. Cryst. Growth, vol. 311, no. 10, pp. 2895-2898 (2009) .

M. Ziegler, J.W. Tomm, D. Reeber, T. Elsaesser, U. Zeimer, H.E. Larsen, P.M. Petersen, and P.E. Andersen
"Catastrophic optical mirror damage in diode lasers monitored during single-pulse operation"
Appl. Phys. Lett., vol. 94, no. 191101 (2009).

F. Brunner, O. Reentilä, J. Würfl, and M. Weyers
"Strain engineering of AlGaN-GaN HFETs grown on 3 inch 4H-SiC"
phys. stat. sol.(c), vol. 6, no. S2, pp. S1065-S1068 (2009).

R. Lossy, A. Glowacki, C. Boit, and J. Würfl
"Electroluminescence characterization of AlGaN/GaN HEMTs"
phys. stat. sol. (c), vol. 6, no. 6, pp. 1382-1385 (2009).

C.M. Schultz, P. Crump, H. Wenzel, O. Brox, F. Bugge and G. Erbert
"Wide Temperature Range High Power Broad Area 975nm DFB Lasers"
Conf. Dig. CLEO/IQEC 2009, Paper CWF6 (2009).

A. Pietrzak, P. Crump, F. Bugge, H. Wenzel, G. Erbert and G. Tränkle
"1060-nm Multi Quantum Well Diode Lasers With Narrow Vertical Divergence Angle of 8° and High Internal Efficiency"
Conf. Dig. CLEO/IQEC 2009, Paper CWF2 (2009).

I. Khalil, S. Kühn, A. Liero, and R. Gesche
"A Novel Self-Pinching Gate Biasing Scheme for Safe Operation and Characterization of GaN HEMTs"
IEEE Microwave Wireless Compon. Lett., vol. 19, no. 5, pp. 302-304 (2009).

T. Kettler, K. Posilovic, L.Ya. Karachinsky, P. Ressel, A. Ginolas, J. Fricke, U.W. Pohl, V.A. Shchukin, N. N. Ledentsov, D. Bimberg, J. Jönsson, M. Weyers, G. Erbert, and G. Tränkle
"High-Brightness and Ultranarrow-Beam 850-nm GaAs/AlGaAs Photonic Band Crystal Lasers and Single-Mode Arrays"
IEEE J. Sel. Top. Quantum Electron., vol. 15, no. 3, pp. 901-908 (2009).

A.I. Bawamia, B. Eppich, K. Paschke, H. Wenzel, F. Schnieder, G. Erbert, G. Tränkle
"Experimental determination of the thermal lens parameters in a broad area semiconductor laser amplifier"
Appl. Phys. B, vol. 97, no. 1, pp. 95-101 (2009).

C. Fiebig, G. Blume, M. Uebernickel, D. Feise, C. Kaspari, K. Paschke, J. Fricke, H. Wenzel, and G. Erbert
"High-Power DBR-Tapered Laser at 980 nm for Single-Path Second Harmonic Generation"
IEEE J. Sel. Top. Quantum Electron., vol. 15, no. 3, pp. 978-983 (2009).

J.J. Lim, S. Sujecki, L. Lang, Z. Zhang, D. Paboeuf, G. Pauliat, G. Lucas-Leclin, P. Georges, R.C.I. MacKenzie, P. Bream, S. Bull, K.-H. Hasler, B. Sumpf, H. Wenzel, G. Erbert, B. Thestrup, P.M. Petersen, N. Michel, M. Krakowski, and E.C. Larkins
"Design and Simulation of Next-Generation High-Power, High-Brightness Laser Diodes"
IEEE J. Sel. Top. Quantum Electron., vol. 15, no. 3, pp. 993-1008 (2009).

B. Sumpf, K.-H. Hasler, P. Adamiec, F. Bugge, F. Dittmar, J. Fricke, H. Wenzel, M. Zorn, G. Erbert, and G. Tränkle
"High-Brightness Quantum Well Tapered Lasers"
IEEE J. Sel. Top. Quantum Electron., vol. 15, no. 3, pp. 1009-1020 (2009).

A. Sahm, H. Thiem, K. Paschke, J. Fricke, A. Knauer and G. Erbert
"4.5 W Hybrid Integrated Master-Oscillator Power-Amplifier at 976 nm on Micro-Optical Bench"
Proc. SPIE, vol. 7221, no. 72210W (2009).

C.-S. Friedrich, C. Brenner, S. Hoffmann, T. Schlauch, A. Klehr, G. Erbert, G. Tränkle, C. Jördens, M. Salhi, M. Koch, and M.R. Hofmann
"THz sources and detectors based on diode lasers"
Proc. SPIE, vol. 7197, no. 71970B (2009).

A. Klehr, H. Wenzel, O. Brox, F. Bugge, G. Erbert, T-P. Nguyen and G. Tränkle
"High power DFB lasers for D1 and D2 rubidium absorption spectroscopy and atomic clocks"
Proc. SPIE, vol. 7230, no. 72301I (2009).

M. Uebernickel, G. Blume, C. Fiebig, C. Kaspari, D. Feise, K. Paschke, A. Ginolas, R. Güther, B. Eppich and G. Erbert
"Beam quality dependent SHG using edge-emitting lasers and a 50mm bulk PPLN crystal"
Proc. SPIE, vol. 7197, no. 71970F (2009).

J. Wiedmann, F. Scholz, T. Tekin, S. Marx, G. Lang, H. Schröder, O. Brox, and G. Erbert
"Green light source by single-pass second harmonic generation with laser and crystal in a tilted butt joint setup"
Proc. SPIE, vol. 7212, no. 72120B (2009).

S.M. Riecke, K. Lauritsen, H. Thiem, K. Paschke, and R. Erdmann
"Comparison of an Yb-doped Fiber and a Semiconductor Taper for Amplification of Picosecond Laser Pulses"
Proc. SPIE, vol. 7212, no. 72120O (2009).

P. Crump, C. Roder, R. Staske, A. Pietrzak, W. Pittroff, A. Ginolas, J. Fricke, K. Paschke, F. Bugge, P. Ressel, H. Wenzel, and G. Erbert
"Limitations to Peak Continuous Wave Power in High Power Broad Area Single Emitter 980 nm Diode Lasers"
Conf. Dig. CLEO/Europe 2009, Paper CB-P.33-TUE (2009).

B. Sumpf, K.-H. Hasler, P. Adamiec, F. Bugge, J. Fricke, H. Wenzel, G. Erbert, G. Tränkle
"12.2 W output power from 1060 nm DBR tapered lasers with narrow spectral line width and nearly diffraction limited beam quality"
Conf. Dig. CLEO/Europe 2009, Paper CB-12.3-THU (2009).

C. Fiebig, D. Feise, K. Paschke, and G. Erbert
"Improving the brightness of tapered diode laser using reverse bias absorber sections"
Conf. Dig. CLEO/Europe 2009, Paper CB-12.4-THU (2009).

A. Klehr, A. Liero, T. Hoffann, S. Schwertfeger, G. Erbert, W. Heinrich and G. Tränkle
"A new concept of an ultra fast pulse picker for fs- and ps-pulses from GHz pulse-trains with semiconductor tapered elements"
Conf. Dig. CLEO/Europe 2009, Paper CB-14.1-FRI (2009).

T-P. Nguyen, A. Klehr, A. Wicht, G. Erbert, and G. Tränkle
"High-power distributed feedback diode laser at 780 nm with sub-100 kHz linewidth"
Conf. Dig. CLEO/Europe 2009, Paper CB-12.2-THU (2009).

S. Riecke, T. Eckhardt, S. Schwertfeger, A. Klehr, H. Wenzel, G. Tränkle
"Temperature Dependence of Picosecond Pulse Spectra of a DFB Laser"
Conf. Dig. CLEO/Europe 2009, Paper CB-14.5-FRI (2009).

V. Tronciu, M. Lichtner, M. Radziunas, U. Bandelow, H. Wenzel, A. Klehr, H. Wenzel, G. Tränkle
"Calculation of improved features of distributed-feedback tapered master-oscillator power-amplifiers"
Conf. Dig. CLEO/Europe 2009, Paper CB-P.30-TUE (2009).

P. Klopp, U. Griebner, M. Zorn, A. Klehr, A. Liero, M. Weyers, and G. Erbert
"190-fs Semiconductor Disk Laser and Tapered Diode Amplifier with Ultrafast Pulse Picking"
Conf. Dig. CLEO/Europe 2009, Paper CB-1.3-MON (2009).

A.I. Bawamia, B. Eppich, K. Paschke, H. Wenzel, G. Erbert, G. Tränkle
"Determination of the thermal lensing in a broad area semiconductor laser amplifier"
Conf. Dig. CLEO/Europe 2009, Paper CB-P.17-TUE (2009).

G. Blume, C. Fiebig, D. Feise, C. Kaspari, A. Sahm, K. Paschke, and G. Erbert
"633nm tapered diode lasers with external wavelength stabilisation for HeNe applications"
Conf. Dig. CLEO/Europe 2009, Paper CB-P.29-TUE (2009).

M. Spreemann, H. Wenzel, B. Eppich, G. Erbert
"Beam properties of gain-guided array structures from low to high power operation"
Conf. Dig. CLEO/Europe 2009, Paper CB-P.34-TUE (2009).

P. Klopp, U. Griebner, M. Zorn, and M. Weyers
"Sub-200-fs Passively Mode-Locked Semiconductor Disk Laser"
Conf. Dig. CLEO/IQEC 2009, Paper CTuQ2 (2009).

M. Rudolph, M. Dewitz, A. Liero, I. Khalil, N. Chaturvedi, C. Wipf, R.M. Bertenburg, J. Miller, J. Würfl, W. Heinrich, G. Tränkle
"Highly Robust X-Band LNA with Extremely Short Recovery Time"
IEEE MTT-S Int. Microwave Symp. Dig., pp. 781-784 (2009).

M. Xia, C.H. Kwok, R.V. Penty, I.H. White, K.-H. Hasler, B. Sumpf and G. Erbert
"Single-Mode Q-Switched Pulse Generation from a Tapered DBR Laser"
Conf. Dig. CLEO/IQEC 2009, Paper CTuH6 (2009).

M. Maiwald, H. Schmidt, B. Sumpf, H.-D. Kronfeldt, G. Erbert
"Microsystem light source at 671 nm for shifted excitation Raman difference spectroscopy"
Proc. SPIE, vol. 7312, no. 73120G (2009).

H. Schmidt, K. Sowoidnich, M. Maiwald, B. Sumpf, H.-D. Kronfeldt
"Hand-held Raman Sensor Head for In-situ Characterization of Meat Quality Applying a Microsystem 671 nm Diode Laser"
Proc. SPIE, vol. 7312, no. 73120H (2009).

B. Sumpf, H. Schmidt, M. Maiwald, A. Müller, G. Erbert, H.-D. Kronfeldt, G. Tränkle
"Microsystem technology based diode lasers and Raman sensors for in situ food quality control"
Proc. SPIE, vol. 7315, no. 731508 (2009).

H. Schmidt, J. Blum, K. Sowoidnich, B. Sumpf, F. Schwägele, H.-D. Kronfeldt
"In-situ Characterization of Meat Aging with Diode-Laser Raman Spectroscopy"
Proc. SPIE, vol. 7315, no. 731509 (2009).

P. Klopp, U. Griebner, M. Zorn, A. Klehr, A. Liero, M. Weyers, and G. Erbert
"Mode-locked InGaAs-AlGaAs disk laser generating sub-200-fs pulses, pulse picking and amplification by a tapered diode amplifier"
Opt. Express, vol. 17, no. 13 pp. 10820-10834 (2009).

R. Kovacs, N. Bibinov, P. Awakowicz, H.-E. Porteanu, S. Kühn, R. Gesche
"An Integrated Atmospheric Microwave Plasma Source"
Plasma Processes Polym., vol. 6, no. S1, pp. S233-S236 (2009).

P. Adamiec, B. Sumpf, I. Rüdiger, J. Fricke, K.-H. Hasler, P. Ressel, H. Wenzel, M. Zorn, G. Erbert, and G. Tränkle
"Tapered lasers emitting at 650 nm with 1 W output power with nearly diffraction-limited beam quality"
Opt. Lett., vol. 34, no. 16, pp. 2456-2458 (2009).

I. Khalil, and W. Heinrich
"Influence of Dynamic Access Resistances on the Linearity of Large GaN HEMT Powerbars"
IEEE Microwave Wireless Compon. Lett., vol. 19, no. 8, pp. 527-529 (2009).

H. Wenzel, P. Crump, A. Pietrzak, C. Roder, R. Staske, X. Wang and G. Erbert
"Maximum output power of broad-area laser diodes"
Proc. 9th Int. Conf. on Numerical Simulation of Optoelectronic Devices, IEEE (2009).

E. Bahat-Treidel, R. Lossy, J. Würfl, and G. Tränkle
"AlGaN/GaN HEMT With Integrated Recessed Schottky-Drain Protection Diode"
IEEE Electron Device Lett., vol. 30, no. 9, pp. 901-903 (2009).

E. Bahat-Treidel, O. Hilt, F. Brunner, J. Würfl, and G. Tränkle
"Punch-through voltage enhancement scaling of AlGaN/GaN HEMTs using AlGaN double heterojunction confinement"
phys. stat. sol. (c), vol. 6, no. 6, pp. 1373-1377 (2009).

E. Bahat-Treidel, O. Hilt, F. Brunner, J. Würfl, and G. Tränkle
"Engineered linearity of GaN-based HEMTs power devices by tailoring transfer characteristics"
phys. stat. sol. (c), vol. 6, no. 6, pp. 1378-1381 (2009).

T. Krämer, M. Rudolph, F.J. Schmückle, J. Würfl, and G. Tränkle
"InP DHBT Process in Transferred-Substrate Technology With f_t and f_max Over 400 GHz"
IEEE Trans. Electron Devices , vol. 56, no. 9, pp. 1897-1903 (2009).

T. Krämer, C. Meliani, F.J. Schmückle, J. Würfl, and G. Tränkle
"Traveling-Wave Amplifiers in Transferred Substrate InP-HBT Technology"
IEEE Trans. Microwave Theory Tech., vol. 57, no. 9, pp. 2114-2121 (2009).

T.K. Sharma, R. Jangir, S. Porwal, R. Kumar, Tapas Ganguli, M. Zorn, U. Zeimer, F. Bugge, M. Weyers, and S.M. Oak
"Compositional dependence of the bowing parameter for highly strained InGaAs/GaAs quantum wells"
Phys. Rev. B, vol. 80, no. 165403 (2009).

P. Crump, H. Wenzel, G. Erbert, and G. Tränkle
"Advances in spatial and spectral brightness in 800-1100 nm GaAs-based high power broad area lasers"
Proc. SPIE, vol. 7483, no. 74830B (2009).

G.J. Riedel, J.W. Pomeroy, K.P. Hilton, J.O. Maclean, D.J. Wallis, M.J. Uren, T. Martin, U. Forsberg, A. Lundskog, A. Kakanakova-Georgieva, G. Pozina, E. Janzen, R. Lossy, R. Pazirandeh, F. Brunner, J. Würfl, M. Kuball
"Reducing Thermal Resistance of AlGaN/GaN Electronic Devices Using Novel Nucleation Layers"
IEEE Electron Device Lett., vol. 30, no. 2, pp. 103-106 (2009).

C. Meliani, A. Wentzel, J. Flucke, E. Ersoy, N. Chaturvedi, R. Lossy, F. Schnieder, B. Janke, S. Freyer, H.-J. Würfl, and W. Heinrich
"Class-S Amplifier at 450 MHz Using GaN-HEMT Power Switch MMICs"
Frequenz, vol. 63, no. 3-4, pp. 55-59 (2009).

A. Glowacki, P. Laskowski, C. Boit, P. Ivo, E. Bahat-Treidel, R. Pazirandeh, R. Lossy, J. Würfl, G. Tränkle
"Characterization of stress degradation effects and thermal properties of AlGaN/GaN HEMTs with photon emission spectral signatures"
Microelectron. Reliab., vol. 49, no. 9-11, pp. 1211-1215 (2009).

A. Wentzel, F. Schnieder, C. Meliani, W. Heinrich
"A Simplified Switch-Based GaN HEMT Model for RF Switch-Mode Amplifiers"
Proc. European Microwave Integrated Circuits Conf. (EuMIC) 2009, pp. 77-80 (2009).

A. Wentzel, C. Meliani, J. Flucke, E. Ersoy, W. Heinrich
"Design and Realization of an Output Network for a GaN-HEMT Current-Mode Class-S Power Amplifier at 450 MHz"
Proc. German Microwave Conf. 2009, pp. 1-4 (2009).

P. Kurpas, A. Wentzel, B. Janke, C. Meliani, W. Heinrich, J. Würfl
"Monolithically Integrated GaInP/GaAs High-Voltage HBTs and Fast Power Schottky Diodes for Switch-Mode Amplifiers"
Conf. Dig. CS MANTECH 2009, pp. 213-216 (2009).

K. Häusler, U. Zeimer, B. Sumpf, F. Bugge, P. Ressel, G. Erbert, and G. Tränkle
"Reliability of diode lasers for space applications"
Proc. SPIE, vol. 7198, no. 719816 (2009).

O. Bengtsson, L. Vestling, J. Olsson
"A Novel Load-Pull Setup with Envelope Calibration for Bias Modulated Measurements"
Proc. European Microwave Conf. (EuMC) 2009, pp. 942-945 (2009).

O. Bengtsson, L. Vestling, J. Olsson
"A Load-Pull Based Device Evaluation Method for Bias Modulated Applications"
Proc. European Microwave Conf. (EuMC) 2009, pp. 1461-1464 (2009).

C. Fiebig, D. Feise, B. Eppich, K. Paschke, G. Erbert
"Tapered Diode Laser With Reverse Bias Absorber Section"
IEEE Photonics Technol. Lett., vol. 21, no. 23, pp. 1755-1757 (2009).

C. Fiebig, A. Sahm, M. Uebernickel, G. Blume, B. Eppich, K. Paschke, and G. Erbert
"Compact second-harmonic generation laser module with 1 W optical output power at 490 nm"
Opt. Express, vol. 17, no. 25, pp. 22785-22790 (2009).

A. Jechow, R. Menzel, K. Paschke, and G. Erbert
"Blue-green light generation using high brilliance edge emitting diode lasers"
Laser Photonics Rev., online first (2009).

M. Maiwald, H. Schmidt, B. Sumpf, R. Güther, G. Erbert, H.-D. Kronfeldt, G. Tränkle
"Microsystem Light Source at 488 nm for Shifted Excitation Resonance Raman Difference Spectroscopy"
Appl. Spectrosc., vol. 63, no. 11, pp. 1283-1287 (2009).

P. Awakowicz, N. Bibinov, M. Born, B. Busse, R. Gesche, A. Helmke, A. Kaemling, V. Kolb-Bachofen, R. Kovacs, S. Kuehn, J. Liebmann, N. Mertens, U. Niemann, C. Oplaender, H.-E. Porteanu, J. Scherer, C. Suschek, W. Vioel, and D. Wandke
"Biological Stimulation of the Human Skin Applying Health-Promoting Light and Plasma Sources"
Contrib. Plasma Phys., vol. 49, no. 9, pp. 641-647 (2009).

G. Blume, C. Fiebig, D. Feise, C. Kaspari, A. Sahm, K. Paschke, G. Erbert
"Room temperature 633 nm tapered diode lasers with external wavelength stabilisation"
IET Optoelectron., vol. 3, no. 6, pp. 320-325 (2009).

V. Tronciu, M. Lichtner, M. Radziunas, U. Bandelow, and H. Wenzel
"Improving the stability of distributed-feedback tapered master-oscillator power-amplifiers"
Proc. 9th Int. Conf. on Numerical Simulation of Optoelectronic Devices, IEEE (2009).

V. Tronciu, M. Lichtner, M. Radziunas, U. Bandelow, and H. Wenzel
"Dynamics and stability improvement of DFB tapered master-oscillator power-amplifiers"
Proc. 6th Int. Conf. on Microelectronics and Computer Science 2009, pp. 15-18 (2009).

J. Pomplun, F. Schmidt, K. Posilovic, V.A. Shchukin, D. Bimberg, A. Pietrzak, H. Wenzel, G. Erbert
"Finite element analysis of novel semiconductor lasers"
Proc. iNOW 2009 Stockholm/Berlin (2009).

S. Riecke, S. Schwertfeger, H. Wenzel, G. Tränkle
"Temperature Dependence of Picosecond Pulse Performance of a DFB Laser"
Proc. iNOW 2009 Stockholm/Berlin (2009).

R. Gesche, S. Kühn, H.-E. Porteanu, R. Kovacs, and J. Scherer
"A Novel Atmospheric Microplasma Source with Integrated GaN HEMT Microwave Power Oscillator"
Proc. 52nd Annual Technical Conf. 2009, pp. 293-296, ISSN 0737-5921 (2009).

X. Wang, P. Crump, A. Pietrzak, C. Schultz, A. Klehr, T. Hoffmann, A. Liero, A. Ginolas, S. Einfeldt, F. Bugge, G. Erbert and G. Tränkle
"Assessment of the Limits to Peak Power of 1100nm Broad Area Single Emitter Diode Lasers under Short Pulse Conditions"
Proc. iNOW 2009 Stockholm/Berlin (2009).

K. Paschke, G. Blume, C. Fiebig, A.  Sahm, D. Feise, M. Uebernickel, G. Erbert, G. Tränkle
"Compact Watt-class visible light sources using direct frequency-doubled edge-emitting diode lasers"
Proc. SPIE, vol. 7193, no. 71931C (2009).

S. Hagedorn, E. Richter, C. Netzel, U. Zeimer, M. Weyers, and G. Tränkle
"HVPE growth of Al_xGa_1-xN alloy layers"
phys. stat. sol. (c), vol. 6, no. S2, pp. S309-S312 (2009).

P. Ivo, A. Glowacki, R. Pazirandeh, E.  Bahat-Treidel, R. Lossy, J. Würfl, C. Boit, G. Tränkle
"Influence of GaN cap on robustness of AlGaN/GaN HEMTs"
Proc. Int. Reliability Physics Symposium 2009 (IEEE), pp. 71-75 (2009).

J. Vila-Comamala, K. Jefimovs, J. Raabe, T. Pilvi, R. H. Fink, M. Senoner, A. Maaßdorf, M. Ritala, C. David
"Advanced thin film technology for ultrahigh resolution X-ray microscopy"
Ultramicroscopy, vol. 109, no. 11, pp. 1360-1364 (2009).