Resonator for electromagnetic waves with a stabilizer and method for stabilizing the length of the resonator
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United States of America Patent
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Mar 30, 1999
Grant Date -
N/A
app pub date -
May 16, 1997
filing date -
May 22, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A resonator (1) for electromagnetic waves with a stabilizer can, for example, be part of a mode-coupled fiber laser. The stabilizer (2) is provided to stabilize the effective length of the resonator (1). Stabilization is accomplished in a first embodiment via two temperature controllers (3, 4) controlling the temperature of a first portion (L1) and the temperature of a second portion (L2) of the resonator (1). The temperature of the second portion (L2) is controlled as a function of an error signal generated by deviations of the resonator (1) from a nominal length. The second portion (L2) is significantly shorter than the first portion (L1).
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