| 摘要 |
<p>The present invention relates to a multi channel coarse wavelength division multiplexing module. The multi channel coarse wavelength division multiplexing module comprises at least two coarse wavelength division multiplexing (CWDM) packages which include: a first capillary which receives light from the outside and transmits the received light; a first lens which is connected to the first capillary and transmits the received light straightly; a CWDM filter which is connected to the first lens, filters the light passed through the first lens, outputs some filtered light, and reflects the remaining unfiltered light; a second lens which passes straight the some filtered light outputted from the first CWDM filter; and a second capillary which is connected to the second lens and outputs straight the light passed through the second lens to a channel. At least one of the at least two CWDM packages receives the remaining unfiltered light reflected from the CWDM filter of the other CWDM package which is not the at least one CWDM package. Therefore, the CWDM packages are disposed in a parallel structure, thereby reducing the size of the CWDM module.</p> |
