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Laser beam oscillating apparatus
The laser beam oscillating apparatus, which overcomes the above-discussed and numerous other disadvantages and deficiencies of the prior art, comprises a plurality of ...
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Optical communication system employing coherent detection and method
In view of the above, the present invention provides for an optical communication system and method which allows high density wavelength division multiplexed ...
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Laser providing stable femtosecond pulses
To this end the present invention provides, in combination: an auxiliary mode-locked synchronous pumping laser; a main laser cavity, including a dye amplifier assembly ...
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Light valve with twisted perpendicular liquid crystal with a negative dielectric anisotropy
In carrying out principles of the present invention in accordance with a preferred embodiment thereof, a liquid crystal device includes a liquid crystal cell having ...
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Fiber-optic cable system and method for dispersion compensation at nodes between end points
OF THE INVENTION In FIG. 1, optical path 10 has a length of 322 Km and begins at site 1 12 from transmit station 14. From transmit station 14, optical fiber amplifier 16...
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Low stress mounting of integrated optic chips
We claim: 1. Apparatus for enclosing an integrated optical IO device having an optical signal path fabricated in a crystalline chip of a thickness and crystallographic ...
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Bi-directional optical communications subscriber transmission system using a single wavelength
In consideration of the above-described problems, an object of the present invention is to achieve bi-directional communications using a single wavelength, thereby ...
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Optical switching device having recirculating structure and optical switching method therefor
An object of the present invention is to provide an optical switching network having a recirculating structure and an optical switching method therefor, for use in ...
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Colorimeter
We claim: 1. A colorimeter for continuously measuring concentration of an ionic species in an aqueous solution, said colorimeter comprising: (a) a source of optical ...
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Method and apparatus for achieving two-way long range communication over an optical fiber
It is an object of the present invention to provide interchangeable talk sets that can communicate with full duplex capability over a single optical fiber. It is a ...
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Optical Systems 
