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8 (7): 1377–1381, 1990. 25. P. R. Ashley and W. S. C. Chang, Linearization technique for a guided-wave electro-optic Bragg modulator, in Digest of Topical Meeting on Integrated and Guided-Wave Optics Atlanta, GA: Optical Society of America, 1986, pp. 36–38. 26. H. Skeie and R. V. Johnson, Linearization of electro-optic modulators by a cascade coupling of phase modulating electrodes, Proc. SPIE, 1583: 153–164, 1991. 27. D. Raskin, K. Chiang, and J. B. S. Parent No. 5,031,235, 1991. 28. R. C. Alferness, S.

43. T. , Polarization-independent switching operation in directional coupler using tensile-strained multi-quantum well, IEEE Photon. Technol. , 7 (1): 47–49, 1995. 44. W. K. , Interferometric waveguide modulator with polarization-independent operation, Appl. Phys. , 33: 944– 947, 1978. 45. B. Glance, Polarization independent coherent optical receiver, J. Lightw. , LT-5 (2): 274–276, 1987. 46. F. , Polarization-independent integrated optical, acoustically tunable double-stage wavelength filter in LiNbO3, J.

A rectangular-core waveguide can be designed to support only a number of Em1 modes by using a wide thin core. The propagation constants of these modes have approximately regular spacing and their interference gives rise to the effect of self-imaging, which forms the basis of a class of optical couplers, known as multimode interference (MMI) couplers (42). Diffused Channel Waveguides Diffused channel waveguides refer specifically to channel waveguides that are fabricated with the ion-diffusion technique.

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32.Lightwave Technology by John G. Webster (Editor)

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