Tuesday, 3 May 2011 - CLEO

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Room 315 Room 316 Room 317 CLEO: Science & Innovations CLEO: QELS- Fundamental Science CLEO: Science & Innovations 16:00–17:45 CTuT • Few-Cycle Infrared Sterling Backus, KMLabs Inc., USA, Presider 16:00–17:45 QTuO • Spin Coherence Daniel Steck, Univ. of Oregon, USA, Presider 16:00–17:45 CTuU • Ultraviolet LEDs: Science and Innovation Michael Wraback, U.S. ARL, USA, Presider CTuT1 • 16:00 Tutorial Few-Cycle Optical Parametric Chirped-Pulse Amplification, Andrius Baltuska, Technical Univ. of Vienna, Austria. We review the milestones of OPCPA development since its inception 25 years ago, compare its utility to laser CPA, explain in detail schemes for seeding, synchronization, gain and waveform management and highlight several key applications Biography not available. QTuO1 • 16:00 Spin-wave generation and storage in a solid state system, Elizabeth A. Goldschmidt 1,2 , Sarah E. Beavan 1,2 , Sergey V. Polyakov 1 , Alan Migdall 1 , Matthew J. Sellars 2 ; 1 Joint Quantum Inst., National Inst. of Standards and Technology and Univ. of Maryland, USA; 2 Research School of Physics and Engineering, Australian National Univ., Australia. We report correlations between multi-photon pulses generated via spontaneous Raman scattering in a rare-earth ion-doped crystal. This is a first step toward implementing a quantum repeater scheme in such a material. CTuU1 • 16:00 Sub-300 nm UV LEDs with Defect Reduction Layer and Vertical-injection Architecture, Christopher L. Chua 1 , Zhihong Yang 1 , Clifford Knollenberg 1 , Mark Teepe 1 , Noble Johnson 1 ; 1 Palo Alto Research Center, USA. We present UV LEDs operating at wavelengths below 300 nm. The heterostructure features a defect reduction layer that bends threading dislocations away from the active region. Vertical-injection structures were fabricated via laser lift-off. Andrius Baltuska received the diploma in physics from Vilnius University, Lithuania, in 1993 and the Ph.D. degree in chemical physics from the University of Groningen, The Netherlands, in 2000. Since 2006 he is a professor at the faculty of Electrical Engineering and Information Technology, Vienna University of Technology. His group works on the development of intense ultrafast laser and parametric amplifiers and applications of fully controlled optical pulses in ultrafast spectroscopy and high-field physics. He was a recipient of the 2004 European Young Investigator Award from the European Science Foundation and of the 2006 Ignaz L. Lieben Award from the Austrian Academy of Sciences. QTuO2 • 16:15 Spin polarization of single NV- centers in diamond after non-resonant optical excitation, Anton Batalov 1 , Katja Beha 1 , Rudolf Bratschitsch 1 , Alfred Leitenstorfer 1 ; 1 Department of Physics and Center for Applied Photonics, Univ. of Konstanz, Germany. The polarization state of the zerophonon line of single NV- centers is studied after non-resonant optical excitation. High-resolution Fabry-Perot spectra reveal the possibility of observing two-photon interference of distant quantum emitters. QTuO3 • 16:30 Quantum Control of Electron Spins in Semiconductors with Phase-Locked Raman Pulse Pairs, Timothy M. Sweeney 1 , Hailin Wang 1 ; 1 Department of Physics and Oregon Center for Optics, Univ. of Oregon, USA. We report the first experimental demonstration of full quantum control of electron spins in semiconductors with phase-locked Raman pulse pairs, mapping relative optical phase onto the phase of electron spin polarization. CTuU2 • 16:15 265 nm Light Emitting Diodes on AlN Single Crystal Substrates: Growth and Characterization, Ramon Collazo 1,2 , Seiji Mita 2 , Jinqiao Xie 2 , Anthony Rice 1 , James Tweedie 1 , Rafael Dalmau 2 , Baxter Moody 2 , Raoul Schlesser 2 , Ronny Kirste 3 , Axel Hoffmann 3 , Zlatko Sitar 1,2 ; 1 Materials Science and Engineering, North Carolina State Univ., USA; 2 HexaTech, Inc., USA; 3 Inst. of Solid State Physics, Technical Univ.-Berlin, Germany. High crystalline quality AlN and pseudomorphic AlGaN films were deposited by metalorganic chemical vapor deposition on single crystal AlN substrates for the fabrication of a 265 nm light emitting diode with estimated IQE above 40%. CTuU3 • 16:30 Carrier Dynamics in Al 0.72 Ga 0.18 N Multiple Quantum Wells Exhibiting Varying Internal Quantum Efficiencies, Gregory A. Garrett 1 , Paul Rotella 1 , Hongen Shen 1 , Michael Wraback 1 , Anirban Bhattacharyya 2 , Theodore Moustakas 2 , William Hug 3 ; 1 RDRL-SEE-M, US Army Research Lab, USA; 2 Department of Electrical and Computer Engineering, Boston Univ., USA; 3 Photon Systems, Inc., USA. Time-resolved photoluminescence studies of Mid-UV AlGaN multiple quantum wells grown by plasma-assisted molecular beam epitaxy reveal improved internal quantum efficiencies with increased carrier localization related to chemical ordering. Tuesday, 3 May QTuO4 • 16:45 Spatial and Temporal Dynamics of Raman Coherence in Hydrogen-filled HC-PCF, Yingying Wang 1 , Anton Husakou 1,2 , Brian Mangan 1 , Fetah Benabid 1 ; 1 Physics, Univ. of Bath, UK; 2 Max Born Inst., Germany. The spatial and temporal dynamics of molecular Raman coherence with time is experimentally and theoretically investigated using delayed probe-pump technique in hydrogen-filled hollow-core photonic crystal fiber. CTuU4 • 16:45 AlGaN-based Deep Ultraviolet LEDs by Plasma assisted Molecular Beam Epitaxy, Chen-Kai Kao 1 , Yitao Liao 1 , Theodore D. Moustakas 1 ; 1 ECE, Boston Univ., USA. We report the development of AlGaNbased deep UV LEDs by PSMBE. Devices emitting at 273 nm were evaluated at bare-die configuration and found to have an output power of 1.3 mW at 100 mA injection current and external quantum efficiency of 0.4 Concurrent sessions are grouped across four pages. Please review all four pages for complete session information. 113
Room 327 Room 336 Room 337 Room 338 CLEO: Science & Innovations CLEO: Applications & Technology CLEO: Science & Innovations 16:00–17:45 CTuV • Laser Locking and Beam Combining Paul Juodawlkis, MIT Lincoln Lab, USA, Presider 16:00–17:45 ATuF • Lasers for Government National Science and Security Applications Michelle Shinn, Thomas Jefferson Lab, US Dept. of Energy, USA, Presider 16:00–17:45 CTuW • Nonlinear or Plasmonic Components Hiroshi Yasaka, Tohoku Univ., Japan, Presider 16:00–17:45 CTuX • Raman or Brillouin Conversion and Applications Gary Catella, Gooch and Housego, USA, Presider CTuV1 • 16:00 Active Coherent Combination of >200 Semiconductor Amplifiers using a SPGD Algorithm, Shawn M. Redmond 1 ; 1 MIT Lincoln Lab, USA. We have demonstrated active coherent beam combination of 218 semiconductor amplifiers with 38.5W CW output. Phase actuation was achieved by adjusting the drive current and controlled using a stochastic-parallel-gradient-descent algorithm. ATuF1 • 16:00 Invited Lasers in Electronic Warfare, Gerald Manke 1 ; 1 Naval Surface Warfare Center - Crane, USA. The use of lasers for Electronic Warfare applications will be discussed and reviewed. Specific examples of deployed EW systems which include lasers will be presented along with a discussion of their most salient features. CTuW1 • 16:00 Intra- and Inter-band Four-wave Mixing in Silicon Coupled Resonator Optical Waveguides, Jun R. Ong 1 , Michael L. Cooper 1 , Greeshma Gupta 1 , William M. Green 2 , Solomon Assefa 2 , Fengnian Xia 2 , Yurii A. Vlasov 2 , Shayan Mookherjea 1 ; 1 Electrical Engineering, Univ. of California, San Diego, USA; 2 IBM Thomas J. Watson Research Center, USA. We demonstrate intra- and inter-band wavelength conversion enhancement for continuous wave sources in wide-passband coupled resonator optical waveguides (CROWs), compared with their constituent silicon waveguides. CTuX1 • 16:00 Synchronously pumped tunable Raman laser in the visible pumped by an all-fiber PM MOPA at 1060 nm, Dejiao Lin 1 , Shaif-ul Alam 1 , Peh Siong Teh 1 , Kangkang Chen 1 , David J. Richardson 1 ; 1 Optoelectronic Research Centre, Universithy of Southampton, UK. We report a pulsed, visible Raman laser synchronously pumped by the frequency doubled output of an all-fiber MOPA at 1060nm. Almost 2.3THz continuous tuning was achieved for individual Stokes order spanning from green to orange. CTuV2 • 16:15 Buried-heterostructure phase-locked arrays of mid-infrared quantum cascade lasers, Alfredo Bismuto 1 , Maria I. Amanti 1 , Mattias Beck 1 , Jérôme Faist 1 ; 1 Physics, ETHZ, Switzerland. Realization of buried-heterostructure phase-locked arrays quantum cascade lasers emitting at 8.5µm is presented. Narrowing of the farfield emission for the multi-elements array compared to single-element laser is shown. CTuW2 • 16:15 Monolithically Integrated Ultrafast All-Optical Switch consisting of Intersubband Optical Nonlinear Waveguide and Michelson Interferometer, Ryoichi Akimoto 1 , Shin-ichiro Gozu 1 , Teruo Mozume 1 , Hiroshi Ishikawa 1 ; 1 Network Photonics Research Center, National Inst. of Advanced Industrial Science and Technology (AIST), Japan. We demonstrate a monolithically integrated ultrafast all-optical switch consisting of intersubband optical nonlinear waveguide in InGaAs/AlAsSb quantum wells and a Michelson interferometer. A full switching is achieved by 3 pJ control pulse energy. CTuX2 • 16:15 Efficient Frequency Conversion at Low-Powers in a Silicon Microresonator Using Carrier Extraction, Jaime Cardenas 1 , Jacob S. Levy 1 , Gustavo Weiderhecker 1 , Amy Turner-Foster 1,4 , Alexander L. Gaeta 2 , Michal Lipson 1,3 ; 1 Electrical and Computer Engineering, Cornell, USA; 2 Applied and Engineering Physics, Cornell Univ., USA; 3 Kavli Inst. at Cornell for Nanoscale Science, Cornell Univ., USA; 4 Electrical and Computer Engineering, Johns Hopkins Univ., USA. We demonstrate four-wave mixing in a silicon microresonator at low powers using a PIN diode to extract the generated carriers. We achieve conversion efficiencies as high as -6.6 dB with 7 mW of input power. Tuesday, 3 May CTuV3 • 16:30 Optical Generation of Narrow-line RF by Injection Locking of Modulated DFB Lasers, Garrett Schneider 1 , Janusz Murakowski 1 , Shouyuan Shi 1 , Dennis Prather 1 ; 1 Electrical and Computer Engineering, Univ. of Delaware, USA. A pair of commercial DFB lasers has been phase locked using electro-optic modulation and injection seeding. By mixing the locked lasers’ outputs on a photodetector, we have generated RF from 5 to 50 GHz, with a measured linewidth below 2 Hz. ATuF2 • 16:30 Invited Mono-Energetic Gamma-rays (MEGa-rays) and the Dawn of Nuclear Photonics, Chris Barty 1 ; 1 Lawrence Livermore National Lab, USA. Mono-Energetic Gamma-rays of unprecedented peak brilliance can be created via the optimized interaction of laser light with relativistic electrons. Development of MEGa-ray technology and related “nuclear” photonics applications are reviewed. CTuW3 • 16:30 Organic/Inorganic Hybrid Optical Amplifier with Wavelength Conversion, Jun Chen 1 , Dayan Ban 1 , Michael G. Helander 2 , Zhenghong Lu 2 , Philip Poole 3 ; 1 Department of Electrical and Computer Engineering, Univ. of Waterloo, Canada; 2 Department of Materials Science and Engineering, Univ. of Toronto, Canada; 3 Inst. for Microstructural Sciences,National Research Council, Canada. We report an organic/inorganic hybrid optical amplifier with a function of converting infrared light to visible light. This device integrates an InGaAs/ InP heterojunction phototransistor (HPT) and an organic light emitting device. CTuX3 • 16:30 Brillouin-based DPSK Demodulation, Lucia Marazzi 1,2 , Paola Parolari 1,2 , Marco Brunero 1 , Maddalena Ferrario 1,2 , Davide Gatti 3 , Stefano Longhi 3 , Mario Martinelli 1 ; 1 Policom Dept. Electronics and information, Politecnico di Milano, Italy; 2 Fondazione Politecnico di Milano, Italy; 3 Dipartimento di Fisica e IFN-CNR, Politecnico di Milano, Italy. We present BER performance of all-optical 10-Gb/s DPSK demodulation obtained by an SBS active filter generated by an incoherent pump, tailored with a FBG properly designed to achieve a 6.7-GHz Gaussian spectral response. CTuV4 • 16:45 A 13 C 2 H 2 Frequency-Stabilized λ/4-shifted DFB Laser Diode with an External Fiber Ring Cavity Having a Linewidth of 2.6 kHz and a RIN of -135 dB/Hz, Keisuke Kasai 1 , Anne Mori 1 , Masataka Nakazawa 1 ; 1 Research Inst. of Electrical Communication, Tohoku Univ., Japan. We describe a 13 C 2 H 2 frequency-stabilized λ/4-shifted DFB-LD with an external fiber ring cavity, which has a linewidth of 2.6 kHz and an RIN of -135 dB/Hz. The frequency stability reached as high as 2.8×10 -10 . CTuW4 • 16:45 Experimental Performance of a Continuously Tunable 40-GHz Complex Weight Optical FIR Filter using Wavelength Conversion and Chromatic Dispersion, Salman Khaleghi 1 , Mohammad Reza Chitgarha 1 , Omer F. Yilmaz 1 , Alan E. Willner 1 , Michael W. Haney 2 ; 1 Ming Hsieh Department of Electrical Engineering, Univ. of Southern California, USA; 2 Department of Electrical & Computer Engineering, Univ. of Delaware, USA. We experimentally demonstrate a tunable and reconfigurable optical complex weight finite impulse response filter using conversion dispersion based delays with optical multicasting and multiplexing. CTuX4 • 16:45 Broadband anti-Stokes generation in a CVDgrown single crystal diamond pumped by two chirped pulses, Hajime Nishioka 1 ; 1 Univ. of Electro-Communications, Inst for Laser Science, Japan. Broadband anti-Stokes emission having a bandwidth of 15,000 cm -1 has been generated by non-collinear two chirped pump pulses. A low energy Stokes shift of 175 ± 8 cm -1 has been observed under the two-pulse excitation. 114 CLEO: 2011 • 1–6 May 2011
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Tuesday, 3 May 2011 - CLEO

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