Polarization retaining single-mode optical waveguide
US4478489A · kind A · utility
31Cited by
3References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 28, 1983 |
| Grant date | Oct 23, 1984 |
| Priority date | — |
| Expiry date | Mar 28, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03B2203/31
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A single mode optical waveguide is fabricated in a manner such that the core thereof is subjected to a stress-induced birefringence. This characteristic is accomplished by introducing into the cladding region of the fiber on opposite sides of the core longitudinally extending regions of glass having a thermal coefficient of expansion different from that of the remainder of the cladding. A number of novel techniques are disclosed for forming such a fiber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.