Search Results - "Kominato, T."
-
1
Rubble-Pile Asteroid Itokawa as Observed by Hayabusa
Published in Science (American Association for the Advancement of Science) (02-06-2006)“…During the interval from September through early December 2005, the Hayabusa spacecraft was in close proximity to near-Earth asteroid 25143 Itokawa, and a…”
Get full text
Journal Article -
2
Characterizing and navigating small bodies with imaging data
Published in Meteoritics & planetary science (01-06-2008)“…— Recent advances in the characterization of small body surfaces with stereophotoclinometry are discussed. The principal data output is an ensemble of landmark…”
Get full text
Journal Article -
3
Packaging Technology for Ultra-Small Variable Optical Attenuator Multiplexer (V-AWG) With Multichip PLC Integration Structure Using Chip-Scale-Package PD Array
Published in IEEE journal of selected topics in quantum electronics (01-09-2006)“…We have developed an ultra-small 16-channel variable optical attenuator (VOA) multiplexer (V-AWG) with excellent optical performance by using multichip planar…”
Get full text
Journal Article -
4
Improvement of the real-time processor in JT-60 data processing system
Published in Fusion engineering and design (01-06-2009)“…Real-time processor, RTP is a basic subsystem in the JT-60 data processing system and plays an important role in JT-60 feedback control for plasma experiment…”
Get full text
Journal Article Conference Proceeding -
5
Development of new mass data acquisition system for diagnostics on JT-60U
Published in Fusion engineering and design (01-04-2008)“…On JT-60U, two mass data acquisition systems have been acquiring 91 channels of fast-sampling diagnostic data. They are, however, based on rather outdated bus…”
Get full text
Journal Article Conference Proceeding -
6
Tunable gain equalization using a Mach-Zehnder optical filter in multistage fiber amplifiers
Published in IEEE photonics technology letters (01-08-1991)“…Tunable signal gain equalization is demonstrated in three-stage Er/sup 3+/-doped fiber amplifiers using a waveguide type Mach-Zehnder (MZ) optical fiber. A…”
Get full text
Journal Article -
7
PLC connector with PLC-fiber physical contact for multichannel receptacle PLC modules for optical circuit board integration
Published in Journal of lightwave technology (01-03-2003)“…We describe a novel waveguide-fiber connector, namely, the planar lightwave circuit (PLC) connector, designed to realize a receptacle interface in PLC-based…”
Get full text
Journal Article -
8
Silica-based integrated optic Mach-Zehnder multi/demultiplexer family with channel spacing of 0.01-250 nm
Published in IEEE journal on selected areas in communications (01-08-1990)“…A Mach-Zehnder (MZ) interferometer design is presented for application to wavelength-division multiplexed/frequency division multiplexed (WDM/FDM) systems. A…”
Get full text
Journal Article -
9
Frequency stabilization of laser diode using a frequency-locked ring resonator to acetylene gas absorption lines
Published in IEEE photonics technology letters (01-10-1991)“…The frequency stabilization of a 1.5 mu m distributed-feedback (DFB) laser diode using a planar lightwave circuit (PLC) ring resonator whose resonant frequency…”
Get full text
Journal Article -
10
Silica-based finesse-variable ring resonator
Published in IEEE photonics technology letters (01-05-1993)“…A finesse-variable ring resonator with a free spectral range of 2.5 GHz is demonstrated using silica-based optical waveguides. The finesse is controlled with a…”
Get full text
Journal Article -
11
A 100-channel optical FM six-stage in-line amplifier system employing tunable gain equalizers
Published in IEEE photonics technology letters (01-02-1993)“…A six-cascade in-line amplifier system that utilizes gain equalizers to successfully transmit 100 optical frequency-division-multiplexed (FDM) signals is…”
Get full text
Journal Article -
12
Ring resonators composed of GeO/sub 2/-doped silica waveguides
Published in Journal of lightwave technology (01-12-1992)“…Ring resonators composed of GeO/sub 2/-doped silica waveguides fabricated on silicon substrates by a flame hydrolysis deposition method are described. GeO/sub…”
Get full text
Journal Article -
13
Optical module with a silica-based planar lightwave circuit for fiber-optic subscriber systems
Published in IEEE photonics technology letters (01-06-1992)“…An optical module for use in both 1.3- mu m signal transmitting/receiving and 1.3/1.5- mu m signal multi/demultiplexing was developed by assembling a…”
Get full text
Journal Article -
14
Optical frequency tuning by laser-irradiation in silica-based March-Zehnder-type multi/demultiplexers
Published in IEEE photonics technology letters (01-07-1991)“…Optical frequency tuning due to photoinduced refractive-index changes is described in Mach-Zehnder interferometer-type frequency division multiplexers (FDMs)…”
Get full text
Journal Article -
15
A 16-channel frequency selection switch for optical FDM distribution systems
Published in IEEE journal on selected areas in communications (01-08-1990)“…The performance of a 5-GHz-spaced, 16-channel frequency selection switch (FS-SW) for optical frequency division multiplexing (FDM) distribution systems is…”
Get full text
Journal Article -
16
Flexible pulse waveform generation using a silica waveguide based spectrum synthesis circuit
Published in Optical Fiber Communication Conference, 2004. OFC 2004 (29-04-2004)“…We demonstrate pulse waveform shaping with a circuit employing an arrayed waveguide grating pair and amplitude-phase controllers. We flexibly synthesized the…”
Get full text
Conference Proceeding -
17
Channel selection and stabilization technique for a waveguide-type 16-channel frequency selection switch for optical FDM distribution systems
Published in IEEE photonics technology letters (01-06-1989)“…A channel selection and stabilization technique for a waveguide-type 16-channel frequency selection switch (FS-SW) was examined at the 1.5- mu m wavelength…”
Get full text
Journal Article -
18
Ultra small 16 ch variable optical attenuator multiplexer (V-AWG) using multi-chip PLC integration technology for ROADM
Published in 31st European Conference on Optical Communications (ECOC 2005) (2005)“…We have developed an ultra small 16 ch variable optical attenuator multiplexer (V-AWG) with excellent optical performance by using multi-chip PLC technology…”
Get full text
Conference Proceeding -
19
Ultra small and low power consumption 8ch variable optical attenuator multiplexer (V-AWG) using multi-chip PLC integration technology
Published in OFC/NFOEC Technical Digest. Optical Fiber Communication Conference, 2005 (2005)“…We have developed an ultra small 8ch variable optical attenuator multiplexer (V-AWG) with excellent optical performance using multi-chip planar lightwave…”
Get full text
Conference Proceeding -
20
Synthesis and evaluation of a difluoromethylene analogue of sphingomyelin as an inhibitor of sphingomyelinase
Published in Bioorganic & medicinal chemistry letters (21-05-2001)“…A sphingomyelin analogue 2, in which the long alkenyl chain and the phosphodiester moiety of sphingomyelin were replaced by a phenyl and an isosteric…”
Get full text
Journal Article