Claims
- 1. An electro-optic phase shifting device for changing the phase of light traveling therethrough in response to a modulating voltage signal, the device having an electrical bandwidth response comprising a 3 dB frequency f greater than about 7 GHz at which the phase shift response to the modulating voltage is reduced by 3 dB, the device comprising:
an optical waveguiding structure comprising a waveguiding core of electro-optic material and a cladding peripherally surrounding the core; and at least two electrodes for applying the modulating signal across the core, wherein at least one of the electrodes has a thickness less than about three times the skin depth in the electrode at the 3 dB frequency f.
- 2. An electro-optic phase shifting device for changing the phase of light traveling therethrough in response to a modulating voltage signal, the device having an electrical bandwidth response comprising a 3 dB frequency f greater than about 7 GHz at which the phase shift response to the modulating voltage is reduced by 3 dB, the device comprising:
an optical waveguiding structure comprising a waveguiding core of electro-optic material and a cladding peripherally surrounding the core; and at least two electrodes for applying the modulating signal across the core, wherein the at least one electrode has a thickness less than about two times the skin depth in the electrode at the 3 dB frequency f.
- 3. An electro-optic phase shifting device for changing the phase of light traveling therethrough in response to a modulating voltage signal, the device having an electrical bandwidth response comprising a 3 dB frequency f greater than about 7 GHz at which the phase shift response is reduced by 3 dB, the device comprising:
an optical waveguiding structure comprising a waveguiding core of electro-optic material and a cladding peripherally surrounding the core; and at least two electrodes for applying the modulating signal across the core, wherein at least one of the electrodes has a thickness less than about two micrometers.
- 4. An electro-optic phase shifting device for changing the phase of light traveling therethrough in response to a modulating voltage signal, the device having an electrical bandwidth response comprising a 3 dB frequency f greater than about 7 GHz at which the phase shift response is reduced by 3 dB, the device comprising:
an optical waveguiding structure comprising a waveguiding core of electro-optic material and a cladding peripherally surrounding the core; and at least two electrodes for applying the modulating signal across the core, wherein at least one of the electrodes has a thickness less than about 0.5 micrometers.
- 5. The phase shifting device of claim 1 wherein the electro-optic material comprises an electro-optic polymer.
- 6. The phase shifting device of claim 1 wherein the electro-optic material comprises a ferroelectric oxide.
- 7. The phase shifting device of claim 1 wherein the electro-optic material comprises a semiconductor material.
- 8. The phase shifting device of claim 1 wherein the electro-optic material comprises lithium niobate.
- 9. The phase shifting device of claim 1 wherein the at least one electrode comprises gold.
- 10. An electro-optic switch or modulator comprising:
a pair of optical waveguides interacting by a beam splitter whereby a light beam is split to both of the waveguides and by a combiner whereby the light beams on the two waveguides are recombined, wherein at least one of the waveguides includes an electro-optic phase shifter according to claim 1 for controlling the phase difference between the recombined beams.
- 11. An electro-optic switch or modulator comprising:
a pair of optical waveguides interacting by a beam splitter whereby a light beam is split to both of the waveguides and a combiner whereby the light beams on the two waveguides are recombined, wherein at least one of the waveguides includes an electro-optic phase shifter according to claim 2 for controlling the phase difference between the recombined beams.
- 12. An electro-optic switch or modulator comprising:
a pair of optical waveguides interacting by a beam splitter whereby a light beam is split to both of the waveguides and a combiner whereby the light beams on the two waveguides are recombined, wherein at least one of the waveguides includes an electro-optic phase shifter according to claim 3 for controlling the phase difference between the recombined beams.
- 13. An electro-optic switch or modulator comprising:
a pair of optical waveguides interacting by a beam splitter whereby a light beam is split to both of the waveguides and a combiner whereby the light beams on the two waveguides are recombined, wherein at least one of the waveguides includes an electro-optic phase shifter according to claim 4 for controlling the phase difference between the recombined beams.
CROSS REFERENCE TO RELATED APPLICATION
[0001] This application claims the benefit of U.S. Provisional Application Serial No. 60/429,598 filed by the present inventors on Nov. 27, 2002 and entitled “Improved Electrooptic Device Employing Polymer Film Waveguides”, which is incorporated herein by reference.
Provisional Applications (1)
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Number |
Date |
Country |
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60429598 |
Nov 2002 |
US |