Leland Stanford Junior University

Crystal Technology, Inc.

John L Nightingale

Robert L Byer

Martin M Fejer

Peter F Bordui

Richard G Norwood

A new compositional relationship in the starting charge of a crystal growth station (FIG. 1 ) provides homogeneous monocrystalline lithium niobate. A new measurement system (FIG. 2 ) provides Curie point values of significantly greater accuracy then that of conventional measurements. Careful control of the starting charge composition for crystal growth and effective utilization of the measurement system enable the determination of the compositional range of starting charges for producing congruent crystalline production. The composition corresponds to a mol percentage of 48.35.+-..01 to 48.40.+-..01 of Li.sub.2 O and the remainder Nb2.sub.O 5 for producing homogeneous crystal whose solidification fraction of the molten charge exceeds that which was heretofore achievable.

Composition for growth of homogeneous lithium niobate crystals

Translation apparatus for a crystal fiber includes a resilient belt which receives a crystal fiber in pressure engagement. The fiber is supported against the belt by a support member having a grooved surface for receiving the fiber. A floating block is positioned within a loop of the belt and is offset in the loop when the support member and fiber are brought into engagement with the belt.

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Woodside, CA, United States of America

John L Nightingale