Accession Number:

ADA030184

Title:

Optical Couplers for Fiber to Integrated Optics Systems.

Descriptive Note:

Final rept. 1 Jun 75-1 Jun 76,

Corporate Author:

IIT RESEARCH INST CHICAGO ILL

Personal Author(s):

• Ohlhaber,Ronald L.

Report Date:

1976-07-30

Pagination or Media Count:

34.0

Abstract:

An optical coupler for transferring light or near IR radiation between high index integrated optics structures such as LiNbO3 and low loss optical fibers was developed. The design is a flexible glass fiber containing an external ridge guiding region on a larger lower index base material. Ridge dimensions down to 2 micrometers were obtained, indicating that single or multimode designs are possible. Special glasses which had refractive index values in excess of 2.20 at 632.9 nm were developed for the coupler fiber. The design utilizes evanescent wave coupling at the integrated optics structure and end fire coupling at the optical fiber. Author

Descriptors:

• *FIBER OPTICS
• *FUSION(MELTING)
• *COUPLERS
• *OPTICAL GLASS
• REFRACTIVE INDEX
• DIELECTRIC FILMS
• LIGHT TRANSMISSION
• OPTICAL SWITCHING
• NEAR INFRARED RADIATION
• LIGHT MODULATORS

Subject Categories:

• Ceramics, Refractories and Glass
• Miscellaneous Materials
• Fiber Optics and Integrated Optics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE