Improvemnets relating to optical delay lines

Details Improvemnets relating to optical delay lines Improvemnets relating to optical delay lines

G - Physics

02

F

G02F 1/29 (2006.01) G01S 7/38 (2006.01) G02B 6/28 (2006.01) G02B 6/42 (2006.01) G02F 1/00 (2006.01) G02F 1/01 (2006.01) H04B 10/10 (2006.01)

Patent

CA 2379924

This invention relates to optical delay lines, particularly to modifying an optical signal passing through an optical delay line. A method of applying a Doppler shift to an optical signal as it passes through an optical delay line is provided, the method comprising the step of progressively altering a property of the optical delay line during passage of the optical signal therethrough such that the time taken for the optical signal to pass therethrough is progressively lengthened or progressively shortened for successive portions of the optical signal. In addition, an optical delay line is provided that mast be used in accordance with the above method.

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