An optical depolarizer includes a non-reciprocal combination-device, a
birefringent block, and a reflector. The non-reciprocal combination-device
has a principal direction and includes a first birefringent wedge, a
second birefringent wedge, and a non-reciprocal rotating element. The
non-reciprocal rotating element can be a Faraday rotator. The birefringent
block is optically coupled to the second birefringent wedge. The reflector
is optically coupled to the birefringent block. The optical depolarizer
can include a lens that is optically coupled to the first wedge. The
optical depolarizer can include a capillary for holding at least a PM
optical fiber and an output optical fiber.
