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Journals and Conferences
We demonstrated an extremely low power consumption thermooptic switch using suspended ridge and silicon-silica hybrid waveguide structures. The switching power was successfully reduced to only 0.6 mW.
This paper describes a compact and practical interleave filter with uniform multi/demultiplexing properties and a wide operational wavelength range realized by using a lattice-form structure and a… (More)
The extension of optical add/drop multiplexing (OADM) systems to metro-core and metro-access networks has led to the need for economical and compact OADM devices. In this paper, we demonstrate a… (More)
UNLABELLED In bone scintigraphy using (99m)Tc with methylenediphosphonate ((99m)Tc-MDP) and hydroxymethylenediphosphonate ((99m)Tc-HMDP), it takes 2-6 h after an injection before imaging can start.… (More)
Silica-waveguide 1.50/1.55 /spl mu/m WDM filters with a TFF-embedded configuration have been developed for video distribution services in FTTH systems. These filters exhibit low insertion losses of… (More)
We successfully reduced the PDL of a silica-based PLC-VOA array at an attenuation of 15 dB to 0.3 dB by forming stress-releasing grooves and by employing a cross-path in an asymmetric Mach-Zehnder… (More)
We demonstrated an ultra small 100 GHz 40 ch athermal AWG module based on 2.5%-Delta waveguides. The module is 30 times 10 times 5 mm with an insertion loss of 2.0-2.9 dB.
We present an DQPSK demodulator with a silica-based PLC type MZI, where a half-wave plate is asymmetrically allocated to reduce polarization dependent frequency shifts, and demonstrate an error-free… (More)
We describe our design and fabrication of a low-loss and compact 1.5%-Delta silica-based athermal arrayed waveguide grating (AWG) using a resin-filled groove. We present the theory of athermal AWG… (More)
We demonstrate a low power consumption differential quadrature phase-shift keying (DQPSK) demodulator using silica-based planar lightwave circuit (PLC) technology. A reduction of the power… (More)