Optical: systems and elements – Optical modulator – Light wave temporal modulation
Reexamination Certificate
2006-06-06
2006-06-06
Ben, Loha (Department: 2873)
Optical: systems and elements
Optical modulator
Light wave temporal modulation
C359S280000, C359S257000, C324S096000, C324S244100, C250S225000
Reexamination Certificate
active
07057792
ABSTRACT:
An optical sensor unit, free from electrical noise, includes a sensor case which has both lateral sides having high frequency connectors mounted thereon, and a metallic plate mounted inside the case. The metallic plate has both ends connected to inner conductors of the high frequency connectors, and its upper surface having a current and a voltage sensor unit mounted thereon for measuring the high frequency current and voltage, respectively. The current sensor unit includes total-reflection mirrors and a current sensor, and the voltage sensor unit includes further total-reflection mirrors and a voltage sensor. The voltage sensor has its upper surface having an electrode provided thereon to be connected to the sensor case. The laser light from outside is input to the current and voltage sensor units over optical fibers. The signal light output from the current and voltage sensor units is taken outside on output optical fibers.
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Kadogawa Yutaka
Moriya Naoji
Tsuji Toshinori
Miyazaki Oki Electric Co., Ltd.
Oki Electric Industry Co. Ltd.
Shimadzu Corporation
Tadamitsu Kaneko
Wenderoth , Lind & Ponack, L.L.P.
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