US 2003/0072069 A1 · Low cost isolator/polarization beam combiner hybrid component

Abstract

A method and system for providing an isolator/polarization beam deflector is disclosed. The method and system include a first collimator, a core and a second collimator. The first collimator collimates a plurality of optical signals traveling in a first direction. The core receives the optical signals from the first collimator. The core includes first and second birefringent wedges and a rotator between the first and second birefringent wedges. The first collimator, the first birefringent wedge and the rotator transmit the optical signals such that the optical signals cross at an interface between the rotator and the second birefringent wedge. The core transmits the optical signals with a deflection, combines the optical signals to provide a combined optical signal and prevents a reflected portion of the optical signals from traveling opposite to the first direction. The second collimator receives and couples the combined optical signal to the output.

Claims14

Dependent claims

An isolator/polarization beam deflector comprising:

a first collimator for collimating a plurality of optical signals traveling in a first direction;
a core for receiving the plurality of optical signals from the first collimator, the core including a first birefringent wedge, a second birefringent wedge and a rotator between the first birefringent wedge and the second birefringent wedge, the first collimator, the first birefringent wedge and the rotator transmitting the plurality of optical signals such that the plurality of optical signals cross at an interface between the rotator and the second birefringent wedge, the core for transmitting the plurality of optical signals with a deflection, for combining the plurality of optical signals to provide a combined optical signal and for preventing a reflected portion of the plurality of optical signals from traveling in a second direction opposite to the first direction;
and
a second collimator for receiving the combined optical signal and focusing the combined optical signal to be output.

1 more element

A method for allowing plurality of optical signals to be combined, the method comprising the steps of:

(a) collimating the plurality of optical signals traveling in a first direction using a first collimator;
(b) providing the plurality of optical signals from the first collimator to a core, the core including a first birefringent wedge, a second birefringent wedge and a rotator between the first birefringent wedge and the second birefringent wedge, the first collimator, the first birefringent wedge and the rotator transmitting the plurality of optical signals such that the plurality of optical signals cross at an interface between the rotator and the second birefringent wedge, the core for transmitting the plurality of optical signals with a deflection, for combining the plurality of optical signals to provide a combined signal and for preventing a reflected portion of the plurality of optical signals from traveling in a second direction opposite to the first direction;
and
(c) providing the combined optical signal to a second collimator;
and
(d) focusing the combined optical signal to the output fiber using the second collimator.

3 more elements

Dependencies are inferred from the claim text.

Low cost isolator/polarization beam combiner hybrid component

Life of this patent

Low cost isolator/polarization beam combiner hybrid component

Life of this patent

Abstract

Claims14