Circulator cable for use with a pluggable optical time domain reflectometer
AssigneeII-Vi Delaware, Inc.
InventorsIan Peter McClean, Sigfried Fleischer, Vincent Ouyang
Life of this patent
Estimating the term…
Abstract
A circulator cable configured to couple an optical time domain reflectometer (OTDR) to an optical fiber span under test is provided. The circulator cable includes a bandpass optical filter configured to be coupled to an optical input port of the OTDR; and a directional optical coupling device coupled to the bandpass optical filter and an optical output port of the OTDR and configured to direct propagation of an optical probe signal generated by the OTDR from the optical output port toward the optical fiber span under test and direct reflections attributed to the optical probe signal from the optical fiber span under test into the bandpass pass optical filter.
Claims18
A circulator cable configured to couple an optical time domain reflectometer (OTDR) to an optical fiber span under test, the circulator cable comprising:
- a ruggedized cable comprising a first port, a second port, a third port configured to be connected to the optical fiber span, and a fourth port configured to be connected to the optical fiber span;
- a bandpass optical filter positioned within the ruggedized cable and configured to be coupled to an optical input port of the OTDR via the second port;
- and
- a directional optical coupling device positioned within the ruggedized cable and coupled to the bandpass optical filter, the directional optical coupling device further coupled to an optical output port of the OTDR via the first port and configured to direct propagation of an optical probe signal generated by the OTDR from the optical output port toward the optical fiber span under test via the fourth port and direct reflections attributed to the optical probe signal from the optical fiber span under test into the bandpass optical filter via the fourth port.
A circulator cable configured to couple an optical time domain reflectometer (OTDR) to an optical fiber span under test, the circulator cable comprising:
- a ruggedized cable having a 2×2 fiber pigtail configuration comprising a first port, a second port, a third port configured to be connected to the optical fiber span, and a fourth port configured to be connected to the optical fiber span;
- a wavelength division multiplexer positioned within the ruggedized cable and coupled to the optical fiber span under test via the third port and the fourth port;
- and
- a directional optical coupling device positioned within the ruggedized cable and coupled to an optical output port of the OTDR, the directional optical coupling device configured to direct propagation of an optical probe signal generated by the OTDR from the optical output port toward the wavelength division multiplexer via the first port and direct reflections attributed to the optical probe signal from the optical fiber span under test into an optical input port of the OTDR via the third port.
A circulator cable configured to couple an optical time domain reflectometer (OTDR) to an optical fiber span under test, the circulator cable comprising:
- a ruggedized cable having a 2×2 fiber pigtail configuration comprising a first port, a second port, a third port configured to be connected to the optical fiber span, and a fourth port configured to be connected to the optical fiber span;
- a bandpass optical filter positioned within the ruggedized cable and configured to be coupled to an optical input port of the OTDR via the second port;
- a wavelength division multiplexer configured to be positioned within the ruggedized cable and coupled to the optical fiber span under test via the third port and the fourth port;
- and
- a directional optical coupling device positioned within the ruggedized cable and coupled to the bandpass optical filter, the directional optical coupling device further coupled to an optical output port of the OTDR via the first port and configured to direct propagation of an optical probe signal generated by the OTDR from the optical output port via the first port toward the wavelength division multiplexer and the optical fiber span under test via the fourth port and direct reflections attributed to the optical probe signal from the optical fiber span under test into the bandpass optical filter via the fourth port.
Dependencies are inferred from the claim text.