2007
M. Zorn, and M. Weyers
"Comprehensive study of (Al)GaAs Si-doping using reflectance anisotropy spectroscopy in metal-organic vapour-phase epitaxy"
J. Phys. D: Appl. Phys. 40 (2007) 878-882.
M. Zorn, T. Trepk, T. Schenk, J.-T. Zettler and M. Weyers
"AlGaInP growth parameter optimisation during MOVPE for opto-electronic devices"
J. Crystal Growth 298 (2007) 23-27.
S. Weeke, M. Leyer, M. Pristovsek, F. Brunner, M. Weyers and W. Richter
"Segregation and desorption of antimony in InP (0 0 1) in MOVPE"
J. Crystal Growth 298 (2007) 159-162.
F. Brunner, V. Hoffmann, A. Knauer, E. Steimetz, T. Schenk, J.-T. Zettler and M. Weyers
"Growth optimization during III-nitride multiwafer MOVPE using real-time curvature, reflectance and true temperature measurements"
J. Crystal Growth 298 (2007) 202-206.
F. Bugge, U. Zeimer, R. Staske, B. Sumpf, G. Erbert and M. Weyers
"MOVPE growth optimization for laser diodes with highly strained InGaAs MQWs"
J. Crystal Growth 298 (2007) 652-657.
M. Zorn, H. Wenzel, U. Zeimer, B. Sumpf, G. Erbert and M. Weyers
"High-power red laser diodes grown by MOVPE"
J. Crystal Growth 298 (2007) 667-671.
H. Wenzel, K. Paschke, O. Brox, F. Bugge, J. Fricke, A. Ginolas, A. Knauer, P. Ressel, G. Erbert
"10W continuous-wave monolithically integrated master-oscillator power-amplifier"
Electronics Letters, Vol. 43, No. 3, 160-161 (2007).
B. Sumpf, M. Zorn, R. Staske, J. Fricke, A. Ginolas, K. Häusler, W. Pittroff, P. Ressel, G. Erbert, M. Weyers, G. Tränkle
"650 nm InGaP broad area lasers with 5000 h reliable operation at 600 mW"
IEEE Photonics Technology Letters, vol. 19, 118-120, 2007.
R. Wilk, A. Klehr, M. Mikulics, M. Walter, M. Koch
"Terahertz generation with a 1064nm DFB laser diode"
Electronics Letters, vol. 43, 108-110, 2007.
F. Dittmar, B. Sumpf, G. Erbert and G. Tränkle
"Long-term reliability studies of high-power 808 nm tapered diode lasers with stable beam quality"
Semicond. Sci. Technol. 22 (2007) 374-379.
L. Wang, E. Richter, and M. Weyers
"Red luminescence from freestanding GaN grown on LiAlO2 substrate by hydride vapor phase epitaxy"
phys. stat. sol. (a) 204, No. 3, 846-849 (2007).
M. Rudolph, R. Behtash, R. Doerner, K. Hirche, J. Würfl, W. Heinrich, G. Tränkle
"Analysis and Optimization of Highly Survivable GaN Low-Noise Amplifiers"
IEEE Trans. Microwave Theory Tech., vol.55, 37 - 43 Jan. 2007.
M. Ziegler, T.Q. Tien, S. Schwirzke-Schaaf, J.W. Tomm, B. Sumpf, G. Erbert, M. Oudart, J. Nagle
"Gradual degradation of red-emitting high-power diode laser bars"
Appl. Phys. Lett. 90, 171113 (2007).
M. Maiwald, G. Erbert, A. Klehr, B. Sumpf, H. Wenzel, T. Laurent, J. Wiedmann, H.-D. Kronfeldt, H. Schmidt
"Reliable operation of 785 nm DFB diode lasers for rapid Raman spectroscopy"
Proc. of SPIE Vol. 6456, 64560W (2007).
B. Sumpf, G. Erbert, J. Fricke, P. Froese, R. Häring, W.G. Kaenders, A. Klehr, F. Lison, P. Ressel, H. Wenzel, M. Weyers, M. Zorn, G. Tränkle
"670 nm tapered lasers and amplifiers with output powers P > 1 W and nearly diffraction limited beam quality"
Proc. of SPIE Vol. 6485 (2007) 648517.
J.W. Tomm, T.Q. Tien, M. Ziegler, F. Weik, B. Sumpf, M. Zorn, U. Zeimer and G. Erbert
"Degradation behavior and thermal properties of red (650 nm) high-power diode single emitters and laser bars"
Proc. SPIE 6456 (2007) 645606.
Ch. Hennig, E. Richter, M. Weyers, and G. Tränkle
"Self-separation of thick two inch GaN layers grown by HVPE on sapphire using epitaxial lateral overgrowth with masks containing tungsten"
phys. stat. sol. (c) 4, No. 7, 2638-2641 (2007).
S. Seitz, M. Bieler, G. Hein, K. Pierz, U. Siegner, F.-J. Schmückle, and W. Heinrich
"Correction of picosecond voltage pulses measured with external electro-optic sampling tips"
Meas. Sci. Technol., vol. 18, pp. 1353-1360, 2007em>
E. Richter, Ch. Hennig, L. Wang, U. Zeimer, M. Weyers, and G. Tränkle
"Optimization of HVPE growth of freestanding c-plane GaN layers using (100) γ-LiAlO2 substrates"
phys. stat. sol. (c) 4, No. 7, 2277-2280 (2007).
F. Bugge, U. Zeimer, G. Erbert, M. Weyers
"Laser structures with InGaAs-QWs and n-AlGaAs/P-GaInP cladding layers for emission wavelength beyond 1100 nm"
Proc. 12th European Workshop on Metalorganic Vapour Phase Epitaxy, June 2007, Bratislava, Slovakia, E11, pp. 195-198.
J. Holm, O.B. Jensen, B. Sumpf, G. Erbert, S. Andersson-Engels, P.E. Andersen, and P.M. Petersen
"Novel low-loss 3-element ring resonator for second-harmonic generation of 808nm into 404nm using periodically poled KTP"
Proc. SPIE 6455, 645504 (2007).
O.B. Jensen, J. Holm, B. Sumpf, G. Erbert, P.E. Andersen, and P.M. Petersen
"Generation of more than 300 mW diffraction-limited light at 405 nm by second-harmonic generation of a tapered diode laser with external cavity feedback"
Proc. SPIE 6455, 645503 (2007).
R. Häring, B. Sumpf, G. Erbert, G. Tränkle, F. Lison, W.G. Kaenders
"670 nm semiconductor lasers for Lithium spectroscopy with 1 W"
Proc. SPIE 6485, 648516 (2007).
C. Fiebig, G. Erbert, W. Pittroff, H. Wenzel, A. Maaßdorf, S. Einfeldt, and G. Tränkle
"High-power, high-brightness 100W QCW diode laser at 940nm"
Proc. SPIE 6456, 64560K (2007).
K. Paschke, S. Einfeldt, Ch. Fiebig, A. Ginolas, K. Häusler, P. Ressel, B. Sumpf, and G. Erbert
"10W reliable operation of 808nm broad-area diode lasers by near-field distribution control in a multistripe contact geometry"
Proc. SPIE 6456, 64560H (2007).
O.B. Jensen, A. Klehr, F. Dittmar, B. Sumpf, G. Erbert, P.E. Andersen, and P.M. Petersen
"808 nm tapered diode lasers optimised for high output power and nearly diffraction-limited beam quality in pulse mode operation"
Proc. SPIE 6456, 64560A (2007).
Ch. Meliani, M. Rudolph, P. Kurpas, L. Schmidt, C.N. Rheinfelder, W. Heinrich
"A 2.4 GHz GaAs-HBT Class-E MMIC Amplifier with 65% PAE"
IEEE MTT-S Int. Microwave Symp. Dig., 2007, 1087-1090.
M. Rudolph, P. Heymann
"On Compact HBT RF Noise Modeling"
IEEE MTT-S Int. Microwave Symp. Dig., 2007, 1783-1786.
C. Netzel, T. Wernicke, U. Zeimer, and M. Weyers
"Structural and optical properties of ELOG a-plane GaN grown with MOVPE over different stripe directions on r-plane sapphire"
Proc. 12th European Workshop on Metalorganic Vapour Phase Epitaxy, June 2007, Bratislava, Slovakia, G6, pp. 257-260.
D. Paboeuf, G. Lucas-Leclin, P. Georges, B. Sumpf, G. Erbert, C. Varona, P. Loiseau, G. Aka, B. Ferrand
"450 nm blue laser emission of an intracavity-doubled Nd:ASL crystal pumped by an extended-cavity tapered laser diode"
Conference Digest CLEO/Europe 2007, Paper CA5-5.
B. Sumpf, M. Zorn, M. Maiwald, R. Staske, J. Fricke, P. Ressel, G. Erbert, M. Weyers, G. Tränkle
"5.5 W output power from 100 µm stripe width lasers at 670 nm with a vertical far-field angle of 32 degrees"
Conference Digest CLEO/Europe 2007, Paper CB14-4.
H. Wenzel, K. Paschke, O. Brox, F. Bugge, J. Fricke, A. Ginolas, A. Knauer, P. Ressel and G. Erbert
"High-power 980-nm monolithically integrated master-oscillator power-amplifier"
Conference Digest CLEO/Europe 2007, Paper CB14-2.
H. Wenzel, M. Dallmer, F. Bugge, J. Fricke, K.-H. Hasler and G. Erbert
"Fundamental-lateral mode stabilized high-power ridge-waveguide lasers"
Conference Digest CLEO/Europe 2007, Paper CB11-1.
A. Klehr, J. Fricke, A. Knauer, G. Erbert, M. Walther, R. Wilk, M. Koch
"High power monolithic two mode DFB laser diodes for the generation of terahertz radiation"
Conference Digest CLEO/Europe 2007, Paper CB12-4.
T.-P. Nguyen, A. Klehr, O. Brox, G. Erbert, and G. Tränkle
"200 kHz linewidth of 780 nm high-power distributed feedback diode laser"
Conference Digest CLEO/Europe 2007, Paper CB-6-WED.
S. Schwertfeger, A. Klehr, J. Fricke, G. Erbert, and G. Tränkle
"High power pulse generation from a 10mm long monolithic multi section mode locked semiconductor laser at 920nm"
Conference Digest CLEO/Europe 2007, Paper CB-7-WED.
F. Saas, V. Talalaev, J.W. Tomm, G. Steinmeyer, U. Griebner, M. Zorn, and M. Weyers
"Optically pumped semiconductor disk laser with graded and step indices for cw and ultrashort pulse generation"
Conference Digest CLEO/Europe 2007, Paper CB13-3.
H. Odriozola, J.M.G. Tijero, L. Borruel, I. Esquivias, H. Wenzel, F. Dittmar, K. Paschke, B. Sumpf, G. Erbert, S. Sujecki, and E.C. Larkins
"High power 980 nm tapered lasers with separate contacts: numerical simulation and comparison with experiments"
Conference Digest CLEO/Europe 2007, Paper CB-30-WED.
K. Paschke, Ch. Dzionk, J. Fricke, A. Ginolas, A. Knauer, M. Maiwald, P. Ressel, S. Schwertfeger, and G. Erbert
"High-power hybrid integrated master-oscillator power-amplifier on microoptical bench at 980-nm"
Conference Digest CLEO/Europe 2007, Paper CB-33-WED.
O. Krüger, G. Schöne, T. Wernicke, W. John, J. Würfl, and G. Tränkle
"UV laser drilling of SiC for semiconductor device fabrication"
Journal of Physics: Conference Series 59 (2007) 740-744.
F.J. Schmückle, W. Gross, K. Hirche, M. Rostewitz, and W. Heinrich
"A 30-GHz Waveguide-to-Microstrip-Transition"
IEEE MTT-S Int. Microwave Symp. Dig., 2007, 1169-1172.
P.K. Talukder, F.-J. Schmückle, R. Schlundt, W. Heinrich
"Optimizing the FDFD Method in Order to Minimize PML-Related Numerical Problems"
IEEE MTT-S Int. Microwave Symp. Dig., 2007, 293-296.
T. Wernicke, O. Krüger, M. Herms, J. Würfl, H. Kirmse, W. Neumann, T. Behm, G. Irmer, G. Tränkle
"Analysis of materials modifications caused by UV laser micro drilling of via holes in AlGaN/GaN transistors on SiC"
Applied Surface Science 253 (2007) 8008-8014.
U. Zeimer, J. Grenzer, D. Korn, S. Döring, M. Zorn, W. Pittroff, U. Pietsch, F. Saas, and M. Weyers
"X-ray diffraction spot mapping - a tool to study structural properties of semiconductor disk laser devices"
phys. stat. sol. (a) 204, No. 8, 2753-2759 (2007).
A. Mogilatenko, W. Neumann, E. Richter, M. Weyers, B. Velickov, R. Uecker
"Mechanism of LiAlO2 decomposition during the GaN growth on (100) ?-LiAlO2"
Journal of Applied Physics 102, 023519 (2007).
A. Klehr, H. Wenzel, O. Brox, F. Bugge, G. Erbert, T-P. Nguyen, and G. Tränkle
"High-power 894 nm monolithic distributed-feedback laser"
Optics Express, vol. 15, no. 18, pp. 11364-11369, 2007.
C. Brenner, S. Hoffmann, M.R. Hofmann, M. Salhi, M. Koch, A. Klehr, G. Erbert, and G. Tränkle
"Detection of terahertz radiation with diode lasers"
Electronics Letters 2nd August 2007 Vol. 43, Iss. 16, p. 870-872.
C. Brenner, S. Hoffmann, M.R. Hofmann, M. Salhi, M. Koch, A. Klehr, G. Erbert, G. Tränkle, J.T. Steiner, M. Kira, and S.W. Koch
"Detection of THz radiation with semiconductor diode lasers"
Applied Physics Letters 91, 101107, 2007.
M.I. Khalil, A. Liero, A. v. Müller and T. Hoffmann
"Current Switch-off Solution to Protect RF Power Transistors During Measurements"
Microwave Journal, Vol. 50, No. 7, July 2007.
S.D. Jackson, F. Bugge, and G. Erbert
"Diode-cladding-pumped singly Ho3+-doped silica fibre laser"
Electronics Letters, Vol. 43, No. 18, 965-966 (2007).
M.I. Khalil
"Characterizing Intermodulation Distortion of High-Power Devices"
High Frequency Electronics JULY 2007 Vol. 6 No. 7.
R. Doerner
"Evaluation of Wafer-Level LRRM and LRM+ Calibration Techniques"
69th ARFTG Conference Digest, Honolulu, Hawaii, 2007.
J.-P. Teyssier, F. de Groote, M. Mayer, P. Schlemko, A. Rumiantsev, V. Khutko, R. Gesche, R. Doerner
"The XML File Format as a General Solution for Measurement Data Storage and Exchange"
69th ARFTG Conference Digest, Honolulu, Hawaii, 2007.
S.D. Jackson, F. Bugge, G. Erbert
"Directly diode-pumped holmium fiber lasers"
Optics Letters, Vol. 32, No. 17, pp. 2496-2498, Sep 1, 2007.
S.D. Jackson, F. Bugge, G. Erbert
"High-power and highly efficient Tm3+-doped silica fiber lasers pumped with diode lasers operating at 1150 nm"
Optics Letters, Vol. 32, No. 19, pp. 2873-2875, Oct 1, 2007.
M. Weyers, E. Richter
"Vapour Phase Epitaxy for GaN Substrates"
Current issues in crystal growth - Vol. 38, Aa. Vv. (2007), ISBN: 978-88-0971-2, pp. 249-260.
R. Güther
"Aplanatism for positive and negative refractive index"
DGaO Proceedings P10, 2007.
S.D. Jackson, F. Bugge, and G. Erbert
"High-power and highly efficient diode-cladding-pumped Ho3+-doped silica fiber lasers"
Optics Letters, Vol. 32, No. 22, pp. 3349-3351, Nov 15, 2007.
S. Schwertfeger, , A. Klehr, A. Liero, G. Erbert, and G. Tränkle
"High-Power Picosecond Pulse Generation Due to Mode-Locking With a Monolithic 10-mm-Long Four-Section DBR Laser at 920 nm"
IEEE Photonics Technology Letters, vol. 19, no. 23, 1889-1891, 2007.
A. Knauer, V. Kueller, S. Einfeldt, T. Kolbe, J.-R. van Look, V. Hoffmann, J. Piprek, M. Weyers and M. Kneissl
"Influence of the barrier composition on the light output of InGaN multiple-quantum-well ultraviolet light emitting diode"
Proc. of SPIE 6797 (2007)67970X-1.
J. Flucke, C. Meliani, F. Schnieder, W. Heinrich
"Improved Design Methodology for a 2 GHz Class-E Hybrid Power Amplifier Using Packaged GaN-HEMTs"
Proceedings of the 37th European Microwave Conference, October 2007, Munich Germany, pp. 1437-1440.
B. Breitkreutz, C. Meliani, F.J. Schmückle, W. Heinrich
"Feeding Structures for Packaged Multifinger Power Transistors"
Proceedings of the 37th European Microwave Conference, October 2007, Munich Germany, pp. 146-149.
M. Rudolph, P. Heymann
"Comparative Study of Shot-Noise Models for HBTs"
Proceedings of the 2nd European Microwave Integrated Circuits Conference, October 2007, Munich Germany, pp. 191-194.
C. Meliani, R. Behtash, J. Würfl, W. Heinrich and G. Tränkle
"A Broadband GaN-MMIC Power Amplifier for L to X Bands"
Proceedings of the 2nd European Microwave Integrated Circuits Conference, October 2007, Munich Germany, pp. 147-150.
S. Bychikhin, V. Dubec, J. Kuzmik, J. Würfl, P. Kurpas, J.-P. Teyssier, D. Pogany
"Current Gain Collapse in HBTs Analysed by Transient Interferometric Mapping Method"
Proceedings of the 2nd European Microwave Integrated Circuits Conference, October 2007, Munich Germany, pp. 28-31.
S. Kühn, C. Andrei, and R. Gesche
"On the Ignition Voltage Behavior of Microwave Microplasmas"
Proceedings of the 37th European Microwave Conference, October 2007, Munich Germany, pp. 616-619.
M. Buchta and W. Heinrich
"On the equivalence between cylindrical and rectangular via-holes in electromagnetic modeling"
2007 European Microwave Conference Digest, pp. 142-145.
S. Rivier, A. Schmidt, Ch. Kränkel, R. Peters, K. Petermann, G. Huber, M. Zorn, M. Weyers, A. Klehr, G. Erbert, V. Petrov, U. Griebner
"Ultrashort pulse Yb:LaSc3(BO3)4 mode-locked oscillator"
Optics Express, vol. 15, no. 23, pp. 15539-15544, 2007.
B. Sumpf, M. Zorn, R. Staske, J. Fricke, P. Ressel, A. Ginolas, K. Paschke, G. Erbert, M. Weyers, G. Tränkle
"3-W Broad Area Lasers and 12-W Bars With Conversion Efficiencies up to 40% at 650 nm"
IEEE Journal of Selected Topics in Quantum Electronics, Vol 13, Iss 5, Sept.-Oct. 2007 pp. 1188-1193.
F. Dittmar, A. Klehr, B. Sumpf, A. Knauer, J. Fricke, G. Erbert, G. Tränkle
"9-W Output Power From an 808-nm Tapered Diode Laser in Pulse Mode Operation With Nearly Diffraction-Limited Beam Quality"
IEEE Journal of Selected Topics in Quantum Electronics, Vol 13, Iss 5, Sept.-Oct. 2007 pp. 1194-1199.
H. Wenzel, M. Dallmer, G. Erbert
"Thermal lensing in high-power ridge-waveguide lasers"
Proceedings NUDOD'07, Paper MB2.
H.E. Porteanu
"Dynamics of photogenerated carriers in porous silicon probed by microwave absorption"
phys. stat. sol. (a) 204, 1362 (2007).
G. Sonia, E. Richter, F. Brunner, A. Denker, R. Lossy, F. Lenk, J. Opitz-Coutureau, M. Mai, J. Schmidt, U. Zeimer, L. Wang, K. Baskar, M. Weyers, J. Würfl and G. Tränkle
"High energy irradiation effects on AlGaN/GaN HFET devices"
Semicond. Sci. Technol. 22 (2007) 1220-1224.
G. Erbert, F. Bugge, J. Fricke, K. Paschke, H. Wenzel, and G. Tränkle
"Monolithic high brightness diode lasers results and developments at FBH"
SPIE Proceedings 6738, pp. 673809.
K. Häusler, B. Sumpf, G. Erbert, G. Tränkle
"Degradation Analysis of 808 nm GaAsP Laser Diodes"
Lasers and Electro-Optics - Pacific Rim, 2007. CLEO/Pacific Rim 2007. Conference on 26-31 Aug. 2007 pp 1-2.
A. Klehr, H. Wenzel, M. Braun, F. Bugge, J. Fricke, A. Knauer, G. Erbert
"Five-hundred-milliwatts distributed-feedback diode laser emitting at 940nm"
Optics & Laser Technology 39 (2007) 333-337.
T. Krämer, F. Lenk, A. Maaßdorf, J. Würfl, G. Tränkle
"High Yield Transferred Substrate InP DHBT"
Conference Proceedings, Indium Phosphide & Related Materials, 2007. IPRM '07. IEEE 19th International Conference on, WeA3-3, pp. 407-408.