Optical waveguides – With optical coupler – Particular coupling structure
Reexamination Certificate
2007-05-29
2007-05-29
Pak, Sung (Department: 2874)
Optical waveguides
With optical coupler
Particular coupling structure
C385S008000, C385S009000
Reexamination Certificate
active
11080974
ABSTRACT:
An electro-optic modulator includes a substrate, at least two parallel optical waveguides, at least one ground plane, at least one active electrode with at least two lower portions of the active electrode, and an upper portion connected to the lower portions, the lower portions spaced apart from each other, each of the two lower portions of the active electrode extending over one of the optical waveguides. An electro-optic phase modulator having at least one optical waveguide and at least one active electrode formed on a face of the substrate, the active electrode having a wider upper portion and a narrower lower portion, the lower portions of the active electrode aligned with and extending over one of the optical waveguides. A bridge electrode has at least one narrower lower portion, and a wider upper portion, the lower portion for being arranged over an optical waveguide formed in a substrate.
REFERENCES:
patent: 5153930 (1992-10-01), DuPuy
patent: 5189713 (1993-02-01), Shaw
patent: 5388170 (1995-02-01), Heismann
patent: 5416859 (1995-05-01), Burns
patent: 5442719 (1995-08-01), Chang
patent: 5497233 (1996-03-01), Meyer
patent: 5712935 (1998-01-01), Miyakawa
patent: 5953466 (1999-09-01), Kubota
patent: 6016198 (2000-01-01), Burns
patent: 6128424 (2000-10-01), Gampp
patent: 6304685 (2001-10-01), Burns
patent: 6356673 (2002-03-01), Burns et al.
patent: 6381379 (2002-04-01), Burns et al.
patent: 6393166 (2002-05-01), Burns
patent: 6501867 (2002-12-01), Gates et al.
patent: 6522793 (2003-02-01), Szilagyi
patent: 6526186 (2003-02-01), Burns
patent: 6535320 (2003-03-01), Burns
patent: 6600843 (2003-07-01), Sriram
patent: 6760493 (2004-07-01), Pruneri et al.
patent: 6845183 (2005-01-01), Cheung et al.
patent: 6862387 (2005-03-01), Howerton
patent: 7024057 (2006-04-01), Li et al.
patent: 7058241 (2006-06-01), Sugiyama et al.
patent: 2003/0228081 (2003-12-01), Tavlykaev
patent: 2004/0061918 (2004-04-01), Pruneri
patent: 2004/0066549 (2004-04-01), Kiehne
patent: 2004/0067021 (2004-04-01), Miyama
patent: 2004/0095628 (2004-05-01), Seino
patent: 2004/0114845 (2004-06-01), Cheung
patent: 2004/0136634 (2004-07-01), Chowdhury
patent: 2004/0145797 (2004-07-01), Aoki
patent: 2004/0151414 (2004-08-01), Cheung
patent: 2004/0202395 (2004-10-01), Yap et al.
patent: 2004/0240036 (2004-12-01), Porte
patent: 2004/0240790 (2004-12-01), Gopinath
patent: 2004/0247220 (2004-12-01), Bosso
patent: 2004/0264832 (2004-12-01), Kondo
W.K. Burns, M.M. Howerton, R.P. Moeller, R.W. McElhanon, A.S. Greenblatt, “Broadband reflection traveling-wave LiNbO3 modulator”, OFC '98 Technical Digest, 1998, pp. 284-285.
Wooten, E.L. Kissa, K.M., Yi-Yan, A., Murphy, E.J., Lafaw, D.A., Hallemeier, P.F., Maack, D., Attanasio, D.V., Fritz, D.J., McBrien, G.J., Bossi, D.E.,“A review of Lithium Niobate Modulators for Fiber-Optic Communications Systems,” IEEE Journal of Selected Topics in Quantum Mechanics, vol. 6, No. 1, pp. 69-82, Jan./Feb. 2000.
W.K. Burns, M.M. Howerton, R.P. Moeller, R.W. McElhanon, A.S. Greenblatt, “Reflection Traveling Wave LiNbO3 Modulator for Low Vπ Operation,” LEOS 1997, IEEE, pp. 60-61.
W.K. Burns, M.M. Howerton, R.P. Moeller, A.S. Greenblatt, R.W. McElhanon, “Broad-Band Reflection Traveling-Wave LiNbO3 Modulator,” IEEE Photonic Technology Letters, vol. 10, No. 6, Jun. 1998, pp. 805-806.
W.K. Burns, M.M. Howerton, R.P. Moeller, R. Krahenbuhl, R.W. McElhanon, and A.S. Greenblatt, “Low-Drive Voltage, Broad-Band LiNbO3 Modulators with and Without Etched Ridges,” Journal of Lightwave Technology, vol. 17, No. 12, Dec. 1999, pp. 2551-2555.
M.M. Howerton, R.P. Moeller, A.S. Greenblatt, and R. Krahenbuhl, “Fully Packaged, Broad-band LiNbO3 Modulator with Low Drive Voltage”, IEEE Photonics Technology Letters, vol. 12, No. 7, Jul. 2000, pp. 792-794.
M. Sugiyama, M. Doi, S. Taniguchi, T. Nakazawa, and H. Onaka, “Driver-less 40 Gb/s LiNbO3 Modulator with Sub-1 V Drive Voltage”, OFC 2002, pp. FB6-2-FB6-4.
Integrated optical photonic RF phase shifters are disclosed in E. Voges, K. Kuckelhaus, and B. Hosselbarth, “True time delay integrated optical RF phase shifters in lithium niobate”, Electronics Letters, vol. 33, No. 23, 1997, pp. 1950-1951.
W.K. Burns, M.M. Howerton, and R.P. Moeller, “Performance and Modeling of Proton Exchanged LiTaO3 Branching Modulators”, Journal of Lightwave Technology, vol. 10, No. 10, Oct. 1992, pp. 1403-1408.
M.M. Howerton, R.P. Moeller, and J.H. Cole, “Subvolt Broadband Lithium Niobate Modulators” 2002 NRL Review, pp. 177-178.
R. Krahenbuhl and M.M. Howerton, “Investigations on Short-Path-Length High-Speed Optical Modulators in LiNbO3 with Resonant-Type Electrodes”, Journal of Lightwave Technology, vol. 19, No. 9, Sep. 2001, pp. 1287-1297.
W.K. Burns, M.M. Howerton, R.P. Moeller, R.W. McElhanon, and A.S. Greenblatt, “Low Drive Voltage, 40 GHz LiNbO3 Modulators”, OFC '99, pp. 284-286.
Cole James H.
Howerton Marta M.
Moeller Robert P.
Ferrett Sally A.
Karasek John J.
Pak Sung
Petkovsek Daniel
United States of America as represented by the Secretary of the
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