Fast Wavelength Switching
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United States of America Patent
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Issued Date -
Jul 18, 2013
app pub date -
Sep 26, 2011
filing date -
Sep 27, 2010
priority date (Note) -
Abandoned
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Abstract
There is described a laser assembly for providing light at a switchable output wavelength. The assembly comprises first and second tuneable lasers, each configurable to emit light at a laser wavelength chosen from a range of wavelengths. Light is transmitted from the first laser while the second laser is retuned to change the chosen laser wavelength thereof. Each laser comprises one or more thermally sensitive control components for controlling the operation of the laser and an additional component electrode located adjacent to at least one of the one or more control components. The laser is configured so that the sum of electrical currents supplied to each control component and its corresponding additional component remains substantially constant in use.
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