- Full text PDF available (1)
- This year (0)
- Last 5 years (2)
- Last 10 years (5)
Journals and Conferences
We have developed the first silica-based PLC type 32 x 32 optical matrix switch. The switch is the largest scale waveguide type switch yet reported, which has excellent optical characteristics with an average insertion loss of 6.6 dB.
We describe a compact transponder aggregator comprising a splitter-switch and a tunable filter array based on PLC technology. We realize a colorless, directionless and contentionless multi-degree ROADM node cost-effectively with a small footprint.
We have developed a PLC-based 32-wavelength 4-degree hub switch module, which consists of a broadcast coupler with a demultiplexer for local-drop, and a WSS with wavelength specific ports for local-add. The module size is 220/spl times/135/spl times/14 mm. The insertion loss of the express path in the WSS is 10.8 dB.
We describe the proof-of-concept demonstration of flexible chromatic dispersion compensation over the entire <i>L</i>-band region wavelength-division-multiplexing transparent networks operating at over 40 Gb/s using span-by-span compensation with an arrayed-waveguide grating and an liquid crystal on silicon-based multichannel tunable dispersion compensator.
We successfully reduced the chip size of a 16/spl times/16 optical matrix switch with silica-based planar lightwave circuit technology to 36 %, and the power consumption to 37 % by employing 1.5 % /spl Delta/ waveguides, heat insulating grooves, and a new circuit layout.
We successfully demonstrated channel-by-channel and flexible CD compensation of 40 λ WDM signals at 40 Gb/s in 40/80 km spans using passband widened AWG-LCOS-based multi-channel TODC combined with a single DCF.
We constructed a prototype scalable 128×128 optical switch system using silica-based 1×128 thermo-optic switches. The system provides high levels of performance namely a low insertion loss (<6.5dB) and a high extinction ratio (>90dB).
We review recent progress in integrated photonics devices and their applications for datacom. In addition to current technology used in 100-Gigabit Ethernet (100GbE) with a compact form-factor of the transceiver, the next generation of technology for 400GbE seeks a larger number of wavelengths with a more sophisticated modulation format and higher bit rate… (More)
We demonstrate an integrated 32ch dynamic wavelength channel selector consisting of an AWG and a 32 /spl times/ 1 switch using PLC technology. The crosstalk is less than -35 dB, we successfully obtained a loss variation of only /spl plusmn/ 0.1 dB.