发明名称 |
Optical channel monitor |
摘要 |
A method of monitoring a WDM optical signal is provided. The method includes: receiving a WDM optical signal having a plurality of channels; detecting the optical signal after filtering the WDM optical signal with a tunable filter; and reconfiguring at least the center wavelength and bandwidth of the tunable filter optical transfer function to determine a signal performance parameter of the WDM optical signal. |
申请公布号 |
US9031404(B2) |
申请公布日期 |
2015.05.12 |
申请号 |
US200912545591 |
申请日期 |
2009.08.21 |
申请人 |
Nistica, Inc. |
发明人 |
Wagener Jefferson L.;Strasser Thomas Andrew |
分类号 |
H04B10/07;H04J14/02;H04B10/079 |
主分类号 |
H04B10/07 |
代理机构 |
Mayer & Williams PC |
代理人 |
Mayer Stuart H.;Mayer & Williams PC |
主权项 |
1. A method of monitoring a WDM optical signal, comprising:
receiving a WDM optical signal having a plurality of channels; detecting the optical signal after filtering the WDM optical signal with a tunable filter to determine a channel plan of the WDM optical signal; based on the channel plan that has been determined by detecting the WDM optical signal, reconfiguring at least a center wavelength and bandwidth of the tunable filter optical transfer function to determine a signal performance parameter of the WDM optical signal; filtering the optical signal with a tunable filter configured to have at least a first optical transfer function, wherein the first optical transfer function has a width narrower than a bandwidth of each of the optical channels; detecting the filtered optical signal to determine a second optical transfer function optimized to measure a parameter of a channel in the WDM optical signal; filtering the optical signal with the tunable filter configured to have the second optical transfer function; and while the optical signal is being filtered by the tunable filter configured with the second optical transfer function, detecting the optical signal to determine a signal performance parameter of the WDM optical signal. |
地址 |
Bridgewater NJ US |