Non-reciprocal optical element for photonic devices
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United States of America Patent
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-
Aug 26, 2003
Grant Date -
Nov 1, 2001
app pub date -
Dec 1, 2000
filing date -
Nov 17, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
This invention relates to fabrication techniques for the creation of new optical elements, an asymmetric (non-reciprocal) diffraction grating and a passive nonlinear optical (visible, microwave, etc.) isolator (diode). It may have potential applications in the field of optical detection (spectrometers) and communications (circulators, wavelength division multiplexing circuits, etc.), etc. One of applications of this proposal is the significant reduction of the noise level in optical communication systems or any other optical systems using laser sources. Another potential interest of these diodes is the fabrication of integrated laser gyroscopes for applications in aviation, etc.
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