CA2639818A1 - Optical fiber cables - Google Patents
Optical fiber cables Download PDFInfo
- Publication number
- CA2639818A1 CA2639818A1 CA 2639818 CA2639818A CA2639818A1 CA 2639818 A1 CA2639818 A1 CA 2639818A1 CA 2639818 CA2639818 CA 2639818 CA 2639818 A CA2639818 A CA 2639818A CA 2639818 A1 CA2639818 A1 CA 2639818A1
- Authority
- CA
- Canada
- Prior art keywords
- optical fiber
- fiber cable
- polymer
- subcable
- cordage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Mechanical Coupling Of Light Guides (AREA)
- Communication Cables (AREA)
Abstract
An optical fiber cable suitable for drop cable applications has a dual jacket, dual reinforcement layers, a round cross section, and a tight buffered construction.
The optical fiber cable is a compact unitary coupled fiber assembly that has a small profile, and is light in weight, while still sufficiently robust for many indoor/outdoor drop cable installations. The small profile and round construction make the cable easy to connectorize.
The optical fiber cable is a compact unitary coupled fiber assembly that has a small profile, and is light in weight, while still sufficiently robust for many indoor/outdoor drop cable installations. The small profile and round construction make the cable easy to connectorize.
Claims (11)
1. Optical fiber cable comprising:
(a) a tight buffered optical fiber subunit comprising at least one optical fiber encased in a polymer layer, the optical fiber subunit having an essentially round cross section, (b) an inner reinforcement layer comprising a polymer wrap surrounding the optical fiber subunit, (c) an inner jacket comprising a polymer layer surrounding the inner reinforcement layer, wherein elements (a), (b) and (c) constitute a subcable cordage, the optical fiber cable further comprising:
(d) an outer reinforcement layer applied to the subcable cordage , (e) an outer jacket comprising a polymer layer surrounding the outer reinforcement layer.
(a) a tight buffered optical fiber subunit comprising at least one optical fiber encased in a polymer layer, the optical fiber subunit having an essentially round cross section, (b) an inner reinforcement layer comprising a polymer wrap surrounding the optical fiber subunit, (c) an inner jacket comprising a polymer layer surrounding the inner reinforcement layer, wherein elements (a), (b) and (c) constitute a subcable cordage, the optical fiber cable further comprising:
(d) an outer reinforcement layer applied to the subcable cordage , (e) an outer jacket comprising a polymer layer surrounding the outer reinforcement layer.
2. The optical fiber cable of claim 1 wherein the diameter of the optical fiber subunit is 1.2 mm or less.
3. The optical fiber cable of claim 2 wherein the diameter of the cordage subcable is 3.2 mm or less.
4. The optical fiber cable of claim 3 wherein the cross section area of the optical fiber cable is less than 25 mm.
5. The optical fiber cable of claim 4 wherein the polymer wrap is an aramid wrap.
6. The optical fiber cable of claim 4 wherein the inner jacket comprises a polymer selected from the group consisting of PVC, polyolefins, and polyurethanes.
7. The optical fiber cable of claim 4 wherein the inner jacket comprises a flame retardant polymer.
8. The optical fiber cable of claim 4 wherein the outer jacket comprises a flame retardant polymer.
9. The optical fiber cable of claim 4 wherein the outer reinforcement layer includes a ripcord.
10. A method for installing an optical fiber cable where the optical fiber cable comprises:
(a) a tight buffered optical fiber subunit comprising at least one optical fiber encased in a polymer layer, the optical fiber subunit having an essentially round cross section, (b) an inner reinforcement layer comprising a polymer wrap surrounding the optical fiber subunit, (c) an inner jacket comprising a polymer layer surrounding the inner reinforcement layer, wherein elements (a), (b) and (c) constitute a subcable cordage, the optical fiber cable further comprising:
(d) an outer reinforcement layer applied to the subcable cordage , (e) an outer jacket comprising a polymer layer surrounding the outer reinforcement layer, the method comprising the steps of:
(1) removing the outer jacket and the outer reinforcing layer of a portion of the cable thereby exposing a portion of the subcable cordage, and (2) attaching a connector to the subcable cordage.
(a) a tight buffered optical fiber subunit comprising at least one optical fiber encased in a polymer layer, the optical fiber subunit having an essentially round cross section, (b) an inner reinforcement layer comprising a polymer wrap surrounding the optical fiber subunit, (c) an inner jacket comprising a polymer layer surrounding the inner reinforcement layer, wherein elements (a), (b) and (c) constitute a subcable cordage, the optical fiber cable further comprising:
(d) an outer reinforcement layer applied to the subcable cordage , (e) an outer jacket comprising a polymer layer surrounding the outer reinforcement layer, the method comprising the steps of:
(1) removing the outer jacket and the outer reinforcing layer of a portion of the cable thereby exposing a portion of the subcable cordage, and (2) attaching a connector to the subcable cordage.
11. The method of claim 10 wherein the portion the outer jacket and the outer reinforcing layer is removed using a rip cord in the reinforcing layer.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US97583007P | 2007-09-28 | 2007-09-28 | |
| US60/975,830 | 2007-09-28 | ||
| US12/009,477 US20090087148A1 (en) | 2007-09-28 | 2008-01-18 | Optical fiber cables |
| US12/009,477 | 2008-01-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2639818A1 true CA2639818A1 (en) | 2009-03-28 |
| CA2639818C CA2639818C (en) | 2012-12-18 |
Family
ID=40475160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2639818A Active CA2639818C (en) | 2007-09-28 | 2008-09-26 | Optical fiber cables |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2639818C (en) |
-
2008
- 2008-09-26 CA CA2639818A patent/CA2639818C/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CA2639818C (en) | 2012-12-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request |