Optical waveguides – With optical coupler – With alignment device
Reexamination Certificate
2005-07-19
2005-07-19
Kim, Ellen E. (Department: 2874)
Optical waveguides
With optical coupler
With alignment device
C385S055000, C385S060000, C385S065000
Reexamination Certificate
active
06920268
ABSTRACT:
Disclosed is a variable alignment-type optical fiber block in which alignment of waveguides can be changed according to temperature. The optical fiber block includes: a substrate having a receiving section formed at one end of the substrate, the receiving section having a predetermined volume; a ferrule seated in the receiving section, the ferrule having a hole in which an optical fiber is inserted; a first expandable block disposed between one side surface of the ferrule and an inner wall surface of the receiving section, which are opposed to each other, the first expandable block having a first thermal expansive coefficient; and, a second expandable block disposed between the other side surface of the ferrule and another inner wall surface of the receiving section, which are opposed to each other, the second expandable block having a second thermal expansive coefficient.
REFERENCES:
patent: 5159655 (1992-10-01), Ziebol et al.
patent: 5625730 (1997-04-01), Ishikawa et al.
Kwon Oh-Dal
Lee Bang-Weon
Shin Sang-Gil
Son Young-Gyu
Song Jeong-Hwan
Cha & Reiter L.L.C.
Kim Ellen E.
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