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Detail
Registered PLANAT LIGHTWAVE CIRCUIT TYPE OPTICAL TRANSCEIVER MODULE
- Inventors
- Lee Jong-Moo, Park Suntak, Baek Yongsoon, Ahn Joon Tae
- Application No.
- 11188302 (2005.07.25)
- Publication No.
- 20060051030 (2006.03.09)
- Registration No.
- 7142740 (2006.11.28)
- Country
- UNITED STATES
- Project Code
- 04MB2600, Photonic device integrated module for optical access network, Oh Kwang Ryong
- Abstract
- Provided is a planar lightwave circuit (PLC) type optical transceiver module, in which for a diplex optical transceiver module that uses different wavelengths in upstream and downstream, an optical waveguide connected to a light-receiving unit is a multi-mode waveguide and an optical waveguide connected to the light-emitting unit is a single mode waveguide, and further, for a triplex optical transceiver module that uses one upstream wavelength and more than two different downstream wavelengths, an optical waveguide connected to the light-receiving unit, which is a waveguide-type photo diode, is a multi-mode waveguide and an optical waveguide connected to the light-emitting unit is a single mode waveguide, whereby even when there is an alignment error of a thin film filter due to irregularity provided in forming a trench, the optical waveguide connected to the light-receiving unit is formed wider than the optical waveguide connected to the light-emitting unit so that the loss during transmission of the optical signal to the light-receiving unit is minimized.
- KSP Keywords
- Different wavelengths, Multi-mode, Optical Transceiver, Optical signal, Optical waveguides, Photo diode, Planar lightwave circuit(PLC), Single mode, Single-mode waveguide, Upstream and downstream, alignment error, light-emitting, optical transceiver module, thin film(TF), thin film filter