초록 ▼

Orthogonally polarized waves are more effectively decoupled in a waveguide that is fabricated in a manner so as to deliberately enhance stress-induced birefringence. This characteristic is accomplished by introducing a geometrical and material asymmetry in the preform from which the optical fiber is

Orthogonally polarized waves are more effectively decoupled in a waveguide that is fabricated in a manner so as to deliberately enhance stress-induced birefringence. This characteristic is accomplished by introducing a geometrical and material asymmetry in the preform from which the optical fiber is drawn. Three methods of preparing the preform are disclosed. Optical waveguides capable of transmitting power with only one direction of polarization are desirable for use with integrated optical devices which are polarization sensitive.

대표청구항 ▼

A single polarization optical waveguide at least partially surrounded by an outer jacket having a different thermal expansion coefficient than said waveguide, and a thickness a along one direction that is different than its thickness b along a direction orthogonal to said one direction; characterize

A single polarization optical waveguide at least partially surrounded by an outer jacket having a different thermal expansion coefficient than said waveguide, and a thickness a along one direction that is different than its thickness b along a direction orthogonal to said one direction; characterized in that: the ratio of b to a is equal to or less than 0.1; and in that the induced strain birefringence D5×10-5.