Optical Properties of Single Mode Rectangular Fibers.
Abstract
The optical properties of single-mode rectangular fibers have been studied with the aim of improving past DH laser/fiber coupling efficiency results. By local heating and careful fracturing, short, rectangular-to-round 'transition' fibers can later be obtained for efficient overall laser/round fiber coupling. The power loss due to rounding is known to be as low as 1 dB. A method of general applicability has been developed to measure core dimensions and numerical aperture of fibers. Coupling efficiency measurements were performed by a more reliable procedure for differentiating cladding from core output power than what has been generally used. Laser/rectangular fiber efficiencies of 30% with a maximum of 50% have been obtained. If laser fluorescent power is accounted for to compare with other publications, the above figures become 46% and 71% respectively.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1978
- Accession Number
- ADA052290
Entities
People
- Carlos A. Kohan
- Gordon L. Mitchell
- Sinclair S. Yee
Organizations
- University of Washington