Optical mixer and its use

Details Optical mixer and its use Optical mixer and its use

1994-12-02

1996-04-02

Boudreau, Leo

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359156, 359188, 359195, 359192, H04B 1012

Patent

active

055046100

ABSTRACT:
The optical mixer (1) contains a polarization-maintaining length of optical waveguide (4) as a mixing element. The pump light (P) is coupled to the optical mixer in so that its plane of polarization makes an angle of 45.degree. with the principal axes of the length of optical waveguide (4). One advantage of this optical mixer (1) is that the optical power of the mixing product (M) depends not on the polarization of the signal light (S), but only on the phase relationship between signal light and pump light. The mixer can be used to advantage in an optical phase-locked loop.

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Kawanishi, S. et al, "Ultrahigh-speed phaselocked-loop-type clock recovery amplifier as a 50 GHz phase detector" Electronics Letters, 16th Sep. 1993, vol. 29, No. 19, pp. 1714-1716.
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