Coherent light generators – Particular beam control device – Optical output stabilization
Reexamination Certificate
2005-03-25
2008-12-02
Andujar, Leonardo (Department: 2826)
Coherent light generators
Particular beam control device
Optical output stabilization
Reexamination Certificate
active
07460573
ABSTRACT:
An etalon functioning as a Fabry-Perot resonator is formed by bonding a quartz crystal bulk having a pair of Z-cut surfaces and a compensation bulk having a pair of Z-cut surfaces with one of the Z-cut surfaces of the quartz crystal bulk facing one of the Z-cut surfaces of the compensation bulk, reflection films being formed on the other of the Z-cut surfaces of the quartz crystal bulk and the other of the Z-cut surfaces of the compensation bulk, respectively. As for the compensation bulk, a LiCAF having a characteristic that (1
)*(∂n/∂T)+α becomes negative, n being the refractive index, T the temperature and α the linear expansion rate, and a ratio of the optical length of the quartz crystal bulk to that of the compensation bulk being approximately set to |(1
)*(∂n/∂T)+α|:3×10−6.
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Andujar Leonardo
Kabushiki Kaisha Toshiba
Lopez Fei Fei Yeung
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
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