Excimer Laser Micromachining of Glass Substrates

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• Quantum Electronics and Laser Science Conference (QELS) 2008 paper: JWA1
• OSA Technical Digest (CD)
• Bhatt, Deepa M; Williams, Karen; Hutt, David A; Conway, Paul P
• Excimer laser machining of microvias and tracks in CMZ glass (100 µm thick) at 248nm has been investigated and optimised in order to minimise hole taper, microcracking and debris.

DPSK Wavelength Multicasting Using FWM with Three Unequally Spaced Pumps in a Bismuth-Oxide Highly Nonlinear Fiber

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• Quantum Electronics and Laser Science Conference (QELS) 2008 paper: JWA100
• OSA Technical Digest (CD)
• Lu, Guo-Wei; Abedin, Kazi Sarwar; Miyazaki, Tetsuya
• We propose and experimentally demonstrate a compact 1-to-5 DPSK wavelength multicasting scheme using FWM with three unequally-spaced pumps in a 2-m-long Bi-HNLF. Power penalties are...

Chirp of Color-Free Injection-Locked Reflective Semiconductor Optical Amplifier Based Transmitter in 200GHz AWG Based WDM-PON after 25km Metropolitan Transmission

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• Quantum Electronics and Laser Science Conference (QELS) 2008 paper: JWA101
• OSA Technical Digest (CD)
• Cheng, Tzu-Kang; Lin, Gong-Cheng; Wang, Hai-Lin; Lin, Gong-Ru
• Chirp analysis of color-less RSOA transmitter with 2-3 ASE injection-locked modes for 1.25Gb/s metropolitan WDM-PON network reaching BER of 10^-9under receiving power below...

All-Optical Signal Regeneration Using Optical Parametric Amplifier

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• Quantum Electronics and Laser Science Conference (QELS) 2008 paper: JWA102
• OSA Technical Digest (CD)
• Lai, David M F; Kwok, C H; Wong, Kenneth K
• We demonstrate cross-gain modulation in an optical parametric amplifier for all-optical signal regeneration. A degraded 10-Gb/s return-to-zero signal has been successfully...

All-Optical Clock Recovery from both NRZ and NRZ-DPSK Signals at Different Bit-Rates

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• Quantum Electronics and Laser Science Conference (QELS) 2008 paper: JWA103
• OSA Technical Digest (CD)
• Yu, Yu; Zhang, Xinliang; Hu, Jing; Huang, Dexiu
• We propose and demonstrate all-optical clock recovery (CR) from both NRZ and NRZ-DPSK signals at different bit-rates, through simply preprocessing with single optical filter. Clock...

All-Optical Subcarrier Phase Modulation for WDM Radio-over-Fiber System

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• Quantum Electronics and Laser Science Conference (QELS) 2008 paper: JWA104
• OSA Technical Digest (CD)
• Li, Shangyuan; Song, Yiqiao; Zheng, Xiaoping; Zhang, Hanyi; Zhou, Bingkun
• Based on polarization rotation of DGD, an all-optical subcarrier phase modulation scheme for WDM radio-over-fiber system in one optical path is proposed and experimentally...

Simultaneous Monitoring of Pulse Carving Misalignment and Phase Modulation Depth in RZ-DPSK Generation

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• Quantum Electronics and Laser Science Conference (QELS) 2008 paper: JWA105
• OSA Technical Digest (CD)
• Wen, He; Jiang, Huan; Chen, Xin; Zheng, Xiaoping; Zhang, Hanyi; Guo, Yili
• A novel method to simultaneously monitoring pulse carving misalignment and phase modulation depth in RZ-DPSK generation is proposed. It is simple but effective and requires only one...

Simultaneous Transmission of Two Channels Operating at the Same Wavelength in Standard Multimode Fibers

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• Quantum Electronics and Laser Science Conference (QELS) 2008 paper: JWA107
• OSA Technical Digest (CD)
• Murshid, Syed H; Chakravarty, Abhijit; Biswas, Raka
• Spatial domain multiplexing is a novel multiplexing technique providing a method to transmit multiple channels of same wavelength inside an optical fiber. Two such analog channels on...

A Novel Optical Signal Monitoring Method of DPSK Signal Based on Delay Tap Sampling and Hausdorff Distance Measure

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• Quantum Electronics and Laser Science Conference (QELS) 2008 paper: JWA108
• OSA Technical Digest (CD)
• Zhao, Jian; Lu, Chao; Lam, K M; Li, Z H; Tam, H Y; Wai, P K
• We demonstrate an optical signal monitoring method for NRZ-DPSK signals using asynchronous-delay-tap-sampling and Hausdorff-distance measure. The application of the technique for...

Scale-Dependent Optical Near-Fields in InAs Quantum Dots and Their Application to Non-Pixelated Memory Architecture

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• Quantum Electronics and Laser Science Conference (QELS) 2008 paper: JWA109
• OSA Technical Digest (CD)
• Naruse, Makoto; Nishibayashi, Kazuhiro; Kawazoe, Tadashi; Akahane, Kouichi; Yamamoto, Naokatsu; Ohtsu, Motoichi
• We demonstrate scale-dependent near-field photoluminescence of InAs quantum dots. Our analysis, based on eigen-decomposition, leads to a novel non-pixelated memory architecture...

Sellmeier and Thermo-Optic Dispersion Formulas for RbTiOPO4

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• Quantum Electronics and Laser Science Conference (QELS) 2008 paper: JWA11
• OSA Technical Digest (CD)
• Kato, Kiyoshi; Mikami, Takuya; Okamoto, Takayuki
• Thermo-optic constants for RbTiOPO⁴were measured from 20 to 120°C in the 0.532-1.571μm range. The Sellmeier and thermo-optic dispersion formulas that reproduce well the...

Ultrafast Transport in Dye Sensitized ZnO Nanotips Investigated by Terahertz Spectroscopy

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• Quantum Electronics and Laser Science Conference (QELS) 2008 paper: JWA110
• OSA Technical Digest (CD)
• Nemec, Hynek; Rochford, Jonathan; Taratula, Olena; Chen, Hanhong; Zhang, Zheng; Lu, Yicheng; Galoppini, Elena; Sundström, Villy
• Transient far-infrared conductivity of as-grown and dye-sensitized ZnO nanotips is measured using time-resolved terahertz spectroscopy. We reveal that the sensitization procedure...

Coherent Phonon Oscillations Excited by the E11Transition in Micelle-Suspended Single-Walled Carbon Nanotubes

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• Quantum Electronics and Laser Science Conference (QELS) 2008 paper: JWA111
• OSA Technical Digest (CD)
• Lim, Yong-Sik; Ahn, Jae-Geum; Eom, Intae; Park, Sohyun; Joo, Taiha; Yee, Ki-Ju; Haroz, Erik H; Booshehri, Layla; Kono, Junichiro
• We report the observation of coherent phonon oscillations of RBMs excited by the E¹¹transition in isolated SWNTs. We observe stronger intensity for the (n-m)mod3 = +1...

Specular Reflection of THz Coherent Acoustic Phonons at Solid-Liquid Interfaces

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• Quantum Electronics and Laser Science Conference (QELS) 2008 paper: JWA112
• OSA Technical Digest (CD)
• Wen, Yu-Chieh; Huang, Yu-Ru; Chen, Hung-Ping; Gusev, Vitalyi; Sun, Chi-Kuang
• We experimentally demonstrate significant reductions and spectral oscillations in THz coherent-phonon reflectivity at GaN-water interfaces. Our results indicated that the nanoscaled...

Ultrafast Rotational Wave Packet Dynamics Observed through Third Harmonic Conversion of a Femtosecond Probe Pulse

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• Quantum Electronics and Laser Science Conference (QELS) 2008 paper: JWA113
• OSA Technical Digest (CD)
• Hartinger, Klaus K; Bartels, Randy A
• We observe rotational wave packet dynamics in CO²through third harmonic generation (THG). The conversion efficiency of THG is modulated by the wavepacket through ultrafast...

Optical Spin State Tomography Using Selection Rules for Photon-Spin Quantum State Transfer

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• Quantum Electronics and Laser Science Conference (QELS) 2008 paper: JWA114
• OSA Technical Digest (CD)
• Rikitake, Yoshiaki; Imamura, Hiroshi; Kosaka, Hideo
• We propose optical quantum state tomography for a single electron spin. The orientation of the spin in an arbitrary superposition state can be determined from the Faraday rotation...

Optically Induced Spin Echoes in Rubidium Atoms: On- and Off-Resonant Manipulations of Spins

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• Quantum Electronics and Laser Science Conference (QELS) 2008 paper: JWA115
• OSA Technical Digest (CD)
• Moriyasu, Takeshi; Koyama, Yuka; Kohmoto, Toshiro; Fukuda, Yukio
• Optically induced spin echoes are observed. Two types of spin echoes, on- and off-resonant manipulations by the control pulse, are discussed. Possibility of spin rotation around...

Evaluation of Density-Dependent Lifetime of 1s Paraexcitons in Cu2O by cw Laser Based Excitonic Lyman Spectroscopy

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• Quantum Electronics and Laser Science Conference (QELS) 2008 paper: JWA116
• OSA Technical Digest (CD)
• Yoshioka, Kosuke; Ideguchi, Takuro; Kuwata-Gonokami, Makoto
• The lifetime and the Auger coefficient for 1s paraexctons in Cu²O from 5 K to 70 K was measured directly using excitonic Lyman spectroscopy. A possible experiment for...

Enhanced Formation of Electron-Hole Droplets in Diamond by a Weak Pulse Injection

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• Quantum Electronics and Laser Science Conference (QELS) 2008 paper: JWA117
• OSA Technical Digest (CD)
• Omachi, Junko; Naka, Nobuko; Yoshioka, Kosuke; Kuwata-Gonokami, Makoto
• The electron-hole droplets (EHD) formation in diamond is remarkably enhanced due to the irradiation by a weak pulse hundreds of picoseconds after a stronger excitation pulse.

Coherent Phonon Dynamics in Exciton Self-Trapping in the Strong Coupling Limit

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• Quantum Electronics and Laser Science Conference (QELS) 2008 paper: JWA118
• OSA Technical Digest (CD)
• Mance, J; Hamner, C; Dexheimer, S L
• We probe the coupled electronic and lattice dynamics of exciton self-trapping in a strongly coupled quasi-one-dimensional system. The coherent phonon response reveals both optical...