发明名称 |
CONTROLLER WHICH CONTROLS A VARIABLE OPTICAL ATTENUATOR TO CONTROL THE POWER LEVEL OF A WAVELENGTH-MULTIPLEXED OPTICAL SIGNAL WHEN THE NUMBER OF CHANNELS ARE VARIED |
摘要 |
An optical amplifier which amplifies a wavelength division multiplexed optical signal having a variable number of channels associated with different wavelengths and outputs the amplified WDM optical signal. The optical amplifier includes a first optical amplifier which amplifies the wavelength division multiplexed optical signal and outputs the first optical amplifier amplified wavelength division multiplexed optical signal; a variable optical attenuator which controls a level of the first optical amplifier amplified wavelength division multiplexed optical signal and outputs the controlled wavelength division multiplexed optical signal; a second optical amplifier which amplifies the controlled wavelength division multiplexed optical signal and outputs the amplified, controlled wavelength division multiplexed optical signal; and a controller which controls the wavelength division multiplexed optical signal to be amplified with a constant gain. |
申请公布号 |
US2014043675(A1) |
申请公布日期 |
2014.02.13 |
申请号 |
US201314018986 |
申请日期 |
2013.09.05 |
申请人 |
FUJITSU LIMITED |
发明人 |
SUGAYA YASUSHI;KINOSHITA SUSUMU |
分类号 |
H01S3/067;H01S3/10;G02B6/06;H01S3/06;H01S3/13;H04B10/16;H04B10/17;H04B10/18;H04J14/00;H04J14/02 |
主分类号 |
H01S3/067 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|