Accession Number:
ADA052290
Title:
Optical Properties of Single Mode Rectangular Fibers.
Descriptive Note:
Final rept. 1 Jun 76-31 Dec 78,
Corporate Author:
WASHINGTON UNIV SEATTLE DEPT OF ELECTRICAL ENGINEERING
Personal Author(s):
Report Date:
1978-02-01
Pagination or Media Count:
73.0
Abstract:
The optical properties of single-mode rectangular fibers have been studied with the aim of improving past DH laserfiber coupling efficiency results. By local heating and careful fracturing, short, rectangular-to-round transition fibers can later be obtained for efficient overall laserround 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. Laserrectangular 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.
Descriptors:
Subject Categories:
- Lasers and Masers
- Manufacturing and Industrial Engineering and Control of Production Systems
- Fiber Optics and Integrated Optics