Heat actuated steering mount for maintaining frequency...

Details Heat actuated steering mount for maintaining frequency... Heat actuated steering mount for maintaining frequency...

2006-03-21

2006-03-21

Palmer, Phan T. H. (Department: 2874)

Optical waveguides

Miscellaneous

C385S015000, C385S031000

Reexamination Certificate

active

07016594

ABSTRACT:
A simple and robust heat actuated steering device for use with mirrors and other optical components of optical telecommunications equipment is described, together with systems which implement such devices. The device uses differential heating between two legs of a flexured mount to allow tilting that can be used to steer an optical beam. Disturbances in the optical alignment, caused by temperature changes, of an optical device containing this component can be compensated by measuring the device temperature and using this to determine a command signal, for example as provided through a lookup table, to correct for device misalignment. Techniques for calibrating the device and establishing the correction data are also disclosed.

REFERENCES:
patent: 6856718 (2005-02-01), Kane et al.
patent: 2005/0025449 (2005-02-01), Dirkson et al.

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