| Tatsuta Electric Wire & Cable Co., Ltd. Patent applications |
| Patent application number | Title | Published |
|---|
| 20120128296 | THREE-WAVELENGTH OPTICAL MULTIPLEXER - Disclosed is a three-wavelength optical multiplexer which is compact, and which multiplexes light having different wavelength incident to three single-mode optical fibers, particularly light of red, green, and blue at transmittance above a certain reference. Specifically disclosed is a three-wavelength optical multiplexer ( | 05-24-2012 |
| 20100238539 | OPTICAL SIGNAL AMPLIFYING APPARATUS - An optical signal amplifying apparatus feeding back surrounding light to perform negative feedback optical amplification of a semiconductor optical amplifier is provided that enables a coupling structure to be simplified and miniaturized between the semiconductor optical amplifier and an optical fiber transmitting the output light from the semiconductor optical amplifier by using a fiber grating device. Since a first optical fiber grating device FGD | 09-23-2010 |
