Method for manufacturing birefringent integrated optics devices

Details Method for manufacturing birefringent integrated optics devices Method for manufacturing birefringent integrated optics devices

1981-03-19

1983-08-23

Lee, John D.

65 3013, 350 9611, G02B 5174

Patent

active

044000529

ABSTRACT:
Method for adjusting the value of birefringence in predetermined sections of waveguides in integrated optics devices fabricated in optically anisotropic substrates such as monocrystalline LiNbO.sub.3 or LiTaO.sub.3. The inventive method comprises in combination methods for changing both refractive indices in a first volume of the substrate, such as, for instance, ion implantation or metal in-diffusion, thereby creating an optical waveguide for both TE and TM modes of radiation, and methods for further changing one of the indices in a second volume of the substrate, without proportionally changing the other index in the second volume, such as, for instance, Li out-diffusion or ion exchange. In a typical application, the first volume comprises waveguiding regions, including the section in which the birefringence is to be adjusted, and the second volume also includes that waveguide section. The inventive methods are advantageously employed in the manufacture of integrated optics devices whose operating characteristics depend on the value of birefringence of a section of waveguide, for instance, a mode converter/wavelength filter, or a polarization separator.

REFERENCES:
patent: 4196963 (1980-04-01), Chen et al.
patent: 4329016 (1982-05-01), Chen
patent: 4348074 (1982-09-01), Burns et al.
Heibei et al, "Fabrication of Strip Waveguides in LiNbO.sub.3 by Combined Metal Diffusion and Ion Implantation", Conf. on Int. and Guided-Wave Optics: Tech. Digest, Incline Village, Nev., (U.S.A.), Jan. 1980, pp. TuD3-1 to 4.
IEEE Transactions on Microwave Theory and Techniques, vol. MTT-23(1), H. Kogelnik, pp. 2-16, (1975).
Internat'l Conf. on Integrated Optics & Optical Fiber Communications, J. Noda & M. Fukuma, Tokyo, 1977, pp. 575-578.
Applied Optics, vol. 13(10), J. R. Carruthers et al., pp. 2333-2342, (1974).
Applied Physics Letters, vol. 25(8), R. V. Schmidt and I. P. Kaminow, pp. 458-460, (1974).
American Ceramic Society Bulletin, vol. 49, W. G. French & A. D. Pearson, pp. 974-977, (1970).
Applied Physics Letters, vol. 26(11), pp. 652-653, (1975), M. L. Shah.
Applied Optics, vol. 19(12), pp. 1996-1999, (1980), J. L. Jackel.
Applied Physics Letters, vol. 36(7), pp. 513-515, (1980), R. C. Alferness.
U.S. patent application S.N. 228,465, filed Jan. 26, 1981, (J. Jackel Case 2) entitled "Method for Producing Devices Comprising Optical Waveguiding Structures".
U.S. patent application, R. C. Alferness Case 7, entitled "Tunable Polarization Independent Wavelength Filter", filed concurrently with the instant application.

Affiliated with

Also associated with

Rating

Method for manufacturing birefringent integrated optics devices does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for manufacturing birefringent integrated optics devices, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for manufacturing birefringent integrated optics devices will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1945160