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Proceedings Paper

Integral Grating Coupler On An Optical Fiber
Author(s): D. A. Bryan; C. R. Chubb; J. K. Powers; W. R. Reed
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Paper Abstract

A diffraction grating etched on the thinned cladding of a single-mode optical fiber offers the convenience of a compact, self-aligned, high-data-rate, wavelength-specific coupler. Various possible arrangements could permit detection or insertion of single- or multi- wavelength signals on a fiber bus. We demonstrated the fabrication of a chirped grating on the cladding of a single-mode fiber by holographic exposure of photoresist followed by argon-ion etching of the fused silica cladding, resulting in grooves with a depth of about 50 nm. This demonstration was done both on the cladding (where coupling to the core would be negligible), and on fibers etched close to the core. Recent work by others has demonstrated the requisite polishing techniques to obtain evanescent-wave coupling of the grating to the fiber core. Our calculations of expected diffraction efficiency generally agree with recently published experiments.

Paper Details

Date Published: 15 January 1986
PDF: 8 pages
Proc. SPIE 0574, Fiber Optic Couplers, Connectors, and Splice Technology II, (15 January 1986); doi: 10.1117/12.950700
Show Author Affiliations
D. A. Bryan, McDonnell Douglas Astronautics Company (United States)
C. R. Chubb, McDonnell Douglas Astronautics Company (United States)
J. K. Powers, McDonnell Douglas Microelectronics Center (United States)
W. R. Reed, NASA Lyndon B. Johnson Space Center (United States)


Published in SPIE Proceedings Vol. 0574:
Fiber Optic Couplers, Connectors, and Splice Technology II
David W. Stowe, Editor(s)

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