发明申请
US20010036008A1 Optical amplifier and a method of preventing emission therefrom of optical power exceeding a prescribed safety limit
有权
基本信息:
- 专利标题： Optical amplifier and a method of preventing emission therefrom of optical power exceeding a prescribed safety limit
- 专利标题（中）：光放大器和防止从其发射超过规定安全极限的光功率的方法
- 申请号：US09865140 申请日：2001-05-24
- 公开(公告)号：US20010036008A1 公开(公告)日：2001-11-01
- 发明人： Claus F. Pedersen , Soren M. Nielsen
- 申请人： DSC Communications A/S, a Danish corporation
- 申请人地址： null
- 专利权人： DSC Communications A/S, a Danish corporation
- 当前专利权人： DSC Communications A/S, a Danish corporation
- 当前专利权人地址： null
- 优先权： DKPCT/DK97/00518 19971114
- 主分类号： H01S003/00
- IPC分类号： H01S003/00
摘要：
An optical amplifier comprises an active fiber (1), a pump unit (2) spaced from the active fiber and adapted to give a nominal, continuous pump power in an operational state, and a pump fiber (3) adapted to transfer optical pump power from the pump unit (2) to the active fiber (1). Moreover, in a safety state, the pump unit (2) is adapted to give a pulsed pump power whose mean power is lower than a prescribed safety limit. A method of preventing emission of optical power exceeding a prescribed safety limit on interruption of an optical fiber (3) which transfers pump power from a pump unit (2) to an active fiber (1), comprises changing the mean power of the pump power in response to a signal received from the active fiber (1) so that the mean power assumes a value below said safety limit if said signal is not received, and assumes a nominal value if said signal is received.
摘要（中）：
光学放大器包括有源光纤（1），与有源光纤间隔开的泵单元（2），并且适于在工作状态下提供标称的连续的泵浦功率;以及泵浦光纤（3），其适于传输光泵浦功率 从泵单元（2）到有源光纤（1）。 此外，在安全状态下，泵单元（2）适于提供平均功率低于规定安全极限的脉冲泵浦功率。 一种防止在将泵功率从泵单元（2）传递到有源光纤（1）的光纤（3）中断时超过规定的安全限制的光功率的发射的方法包括：改变泵功率的平均功率 响应于从有源光纤（1）接收到的信号，使得如果没有接收到所述信号，则平均功率采用低于所述安全限值的值，并且如果接收到所述信号则假定为标称值。