초록 ▼

A single-crystal electro-optic modulator is described which positions a cubic temperature-stable bulk single crystal between two polarization plates rotated 90°with respect to each other which are located between lensing means which focus divergent radiation emitted from an optical fiber into parall

A single-crystal electro-optic modulator is described which positions a cubic temperature-stable bulk single crystal between two polarization plates rotated 90°with respect to each other which are located between lensing means which focus divergent radiation emitted from an optical fiber into parallel rays for passage through the polarization means and the crystal and refocus the parallel rays a focal point and within the angle of acceptance of a return optical fiber.

대표청구항 ▼

A high-temperature, electro-optic modulator suitable for use in a hermetically sealed armored optical well logging cable connector electronics cavity, said modulator consisting essentially of: an optical fiber; a first focusing means in the optical path of an optical light signal emitted from the en

A high-temperature, electro-optic modulator suitable for use in a hermetically sealed armored optical well logging cable connector electronics cavity, said modulator consisting essentially of: an optical fiber; a first focusing means in the optical path of an optical light signal emitted from the end of the optical fiber, said first focusing means capable of focusing the diverging rays of said light signal emitted from said end of said optical fiber into parallel rays; a first polarization means oriented by brewsters angle in the optical path of said parallel rays emitted from said first focusing means; a temperature-stable, electro-optic bulk AB type binary cubic lattice structured single-crystal in the optical path of said parallel rays emitted from said first polarization means, said crystal oriented with said parallel rays propagating K parallel to the (110) axis, and said crystal having opposite opposed parallel faces; electrodes contacting said opposite opposed parallel (110) faces; a second polarization means oriented by brewsters angle in the optical path of said parallel rays emitted from said crystal, said second polarization means rotated 90°with respect to said first polarization means; and a second focusing means in the optical path of said parallel rays and capable of focusing said parallel rays emitted from said second polarization means into a focal point.