Abstract: A method and apparatus for automatically providing for both multiplexing and independent external modulation of two or more wavelengths emitted by one or more multi-longitudinal mode laser(s) or other light source. The present invention uses an integrated optics device chip to enable coupling of the dispersed wavelengths into separate electro-optic modulators which encode each of the carrier wavelengths with a different signal. Accordingly, the volume of data which can be transmitted over an optical fiber network is increased. The carrier wavelengths can be transmitted over single or multi-mode optical fibers.

Abstract: A method and apparatus for automatically providing for both multiplexing and independent external modulation of two or more wavelengths emitted by a multi-longitudinal mode laser. The present invention uses an integrated optics device chip to enable coupling of the dispersed wavelengths into separate electro-optic modulators which encode each of the carrier wavelengths with a different signal. Accordingly, the volume of data which can be transmitted over an optical fiber network is increased.

Abstract: An integrated device (10) for scanning a laser beam, including a substrate (12). An electro-optic waveguide (14), a Bragg grating electrode array (31) in operative contact with the waveguide, and a array of electro-optic prisms (33). The electrode array (31) includes a plurality of upper grating electrodes (26) and a lower first electrode (32). A voltage potential can be placed across individual upper grating electrodes (26) and the lower electrode (32) to establish up a Bragg grating in a small localized region. This localized Bragg grating diffracts a laser beam carried by the waveguide and creates a spatially-variable diffracted beam (40) which can be continuously scanned by deflecting the diffracted beam (40) with the electro-optic prism array (33).

Abstract: A single-mode electro-optic switch (10 or 10') including a graded index layer (14b or 14b'). Two electro-optic embodiments are disclosed. The first embodiment includes a substrate (12) and a planar waveguide (14) atop the substrate (12) including a graded index layer (14b) sandwiched between a pair of lower refractive index layers (14a and b 14c). The substrate (12) preferably forms anisotropically etched V-grooves (38) suitable for receiving fibers (50) and (52) and for registering the cores of the fibers with the middle layer (14b). The first embodiment of the switch includes a single input port and a pair of output ports, wherein when the switch is energized, light is reflected away from the first output port and toward the second output port.

Abstract: A magnetic field sensor which may be rendered preferentially sensitive to magnetic field components in each of two, preferably orthogonal, directions by application of appropriate magnetic bias fields is disclosed.

Abstract: Optically transparent, conducting metal oxide films are produced on plastic or suitable ceramic substrates by placing the substrate to be coated in a partially evacuated chamber containing a mixture of a suitable organo-metallic compound vapor and oxygen and utilizing a glow discharge sustained by a DC, AC or RF electromagnetic field.