Optical waveguides – With optical coupler – Input/output coupler
Reexamination Certificate
2005-09-27
2005-09-27
Doan, Jennifer (Department: 2874)
Optical waveguides
With optical coupler
Input/output coupler
C385S031000, C359S642000
Reexamination Certificate
active
06950574
ABSTRACT:
The invention relates to an approach to angle tuning a thin film, interference filter device in which light is delivered to the filter from a fiber lying off-axis relative to the filter, and to a method of optically coupling such a device. The optical device comprises a lens unit having an optical axis and an adjustable effective focal length. The device also includes a first port disposed on a first side of the lens unit and on a first side of the optical axis, and an optical element disposed on the second side of the lens unit. The optical element has an optical characteristic that is dependent on the angle of incidence on the optical element. The lens unit has an adjustable focal length so light from the first port is incident on the optical element at a desired angle.
REFERENCES:
patent: 5583683 (1996-12-01), Scobey
patent: 5612824 (1997-03-01), Si et al.
patent: 5799121 (1998-08-01), Duck et al.
patent: 5917626 (1999-06-01), Lee
patent: 6175453 (2001-01-01), Lee et al.
patent: 2001-021755 (2001-01-01), None
U.S. Appl. No. 09/999,891, “Dual Fiber Collimator Assemply Pointing Control”.
Gage Edward C.
Gardner Timothy S.
Gerber Ronald E.
ADC Telecommunications Inc.
Carlson, Caspers Vandenburgh & Lindquist
Doan Jennifer
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