| 发明名称 |
OPTICAL TRANSMISSION DEVICE AND PROTECTION WAVELENGTH SELECTION METHOD |
| 摘要 |
There is provided an optical transmission device including a light source configured to generate light used for coherent detection processing of reception light; a monitor configured to monitor a frequency offset between the reception light having a plurality of protection wavelengths and the light generated by the light source, based on a signal obtained by the coherent detection processing of the reception light having the plurality of protection wavelengths available for a work wavelength by the light generated by the light source; and a controller configured to select a protection wavelength to be switched to the work wavelength among the plurality of protection wavelengths, based on the frequency offset monitored by the monitor. |
| 申请公布号 |
US2017019167(A1) |
申请公布日期 |
2017.01.19 |
| 申请号 |
US201615204282 |
申请日期 |
2016.07.07 |
| 申请人 |
FUJITSU LIMITED |
发明人 |
SHOJI Takuma;HONDA Takashi;KAWARAI MASASHIGE;Saitoh Satoru |
| 分类号 |
H04B10/032;H04B10/079;H04J14/02;H04Q11/00 |
主分类号 |
H04B10/032 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. An optical transmission device comprising:
a light source configured to generate light used for coherent detection processing of reception light; a monitor configured to monitor a frequency offset between the reception light having a plurality of protection wavelengths and the light generated by the light source, based on a signal obtained by the coherent detection processing of the reception light having the plurality of protection wavelengths available for a work wavelength by the light generated by the light source; and a controller configured to select a protection wavelength to be switched to the work wavelength among the plurality of protection wavelengths, based on the frequency offset monitored by the monitor. |
| 地址 |
Kawasaki-shi JP |
