Adiabatic polarization manipulating device

Details Adiabatic polarization manipulating device Adiabatic polarization manipulating device

1989-11-14

1991-03-12

Ullah, Akm

350 9616, 350 9633, G02B 626

Patent

active

049987933

ABSTRACT:
A TE-TM polarization manipulating (i.e., splitting, combining or filtering) device is constructed from substrate-supported dielectric thin film waveguides. In a 3-port device, two waveguides have cores of different materials and different effective refractive indices. The waveguide cores overlap in a first transition section and one waveguide core has an adiabatic taper; in this section they also separate adiabatically in and are coupled to a second (e.g., output) section where the waveguides are physically separate and optically decoupled. In a 4-port device, two additional waveguides are coupled in a second adiabatic transition section to the first transition section to enable TE or TM modes to be coupled straight through the device from one input port to a directly opposite output port or to be crossed-over from one input port to a diagonally opposite output port.

REFERENCES:
patent: 4070094 (1978-01-01), Martin
patent: 4262992 (1981-04-01), Berthold, III
patent: 4701009 (1987-10-01), Tangonan et al.
patent: 4711514 (1987-12-01), Tangonan et al.
patent: 4763977 (1988-08-01), Kawasaki et al.
patent: 4779945 (1988-10-01), Hill et al.
patent: 4796968 (1989-01-01), Coccoli et al.
"An Optical Waveguide TE-TM Mode Splitter", Applied Physics Letters, 32(5), Mar. 1, 1978, M. Kobayashi et al, pp. 300-302.
"A Passive TE/TM Mode Splitting Device by the Ion-Exchanged LiNbO.sub.3 Waveguide", Y. FUJII, pp. 111-112, Feb. 1985.
The Transactions of the IECE of Japan, vol. E 68, No. 2.
"An Optical RE--TM Mode Splitter Using a LiNbO.sub.3 Branching Waveguide", M. Masuda et al., i Applied Physics Letters, vol. 37(1), Jul. 1, 1980, pp. 20-22.
"Single-Mode Optical Y-Branching Circuit Using Deposited Silica Guides (DS Guides)", Y. Murakami et al, Electronics Letters, 11th Jun., 1981, vol. 17, No. 12, pp. 411-413.
"Mode Conversion in Planar-Dielectric Separating Waveguides", W. K. Burns et al, IEEE Journal of Quantum Electronics, vol. QE-11, No. 1, Jan., 197, pp. 32-39.
TE-TM Mode Splitter Using Branching Waveguides Made by Proton Exchange and Ti Duffusion, N. Goto et al, IGWO'89.
Topical Meeting on Integrated and Guided Wave Optics, pp. 262-265, Feb. 6-8, 1989, Brown Convention Center, Houston, Tex.
"Dielectric thin-film Optical Branching Waveguide", Appl. Phys. Ltr., vol. 22, No. 12, Jun. 15, 1973, H. Yajima, pp. 647-649.

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