Optical waveguides – With optical coupler – Switch
Patent
1998-04-16
2000-02-29
Lee, John D.
Optical waveguides
With optical coupler
Switch
G02B 635
Patent
active
060319461
ABSTRACT:
A moving mirror switch includes a focusing element adapted to focus an incoming light beam transmitted from an input optical port, a movable mirror, and an actuator. The actuator moves the mirror between first and second mirror positions corresponding to reflective and pass-through states, respectively. In the reflective state, the mirror at least partially reflects the focused beam back upon the input port. In the pass-through state, the focused beam is at least partially transmitted towards an optical output port of the switch. The first and second positions may correspond to complete reflective and complete transmission states, respectively. The mirror may further be positioned in intermediate positions to achieve partial transmission states (and/or partial reflective states), such that the mirror switch operates as a variable attenuator. Embodiments are presented in which the input and output ports are disposed on the same side of the switch, or on opposite sides of switch.
REFERENCES:
patent: 4569569 (1986-02-01), Stewart
patent: 5535293 (1996-07-01), Buchin
patent: 5742712 (1998-04-01), Pan et al.
patent: 5748812 (1998-05-01), Buchin
patent: 5838847 (1998-11-01), Pan et al.
patent: 5903687 (1999-05-01), Young et al.
Bergmann Ernest Eisenhardt
Bishop David John
Connelly-Cushwa Michelle R.
Lee John D.
Lucent Technologies - Inc.
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