Abstract
We observed residual stress relaxation by CO2 laser irradiation in the cores of optical fibers by direct stress measurement. It was demonstrated that the mechanical stress was fully relaxed by CO2 laser irradiation and that the remaining stress in the core was thermal stress that was due to a mismatch of the thermal expansion coefficients of the fiber core and cladding. The net core stresses after relaxation were 17, 68, and 203 MPa in Ge-B-codoped fibers drawn at 0.53, 1.38, and 3.48 N, respectively. Changes in the refractive indices of the cores as a result of residual stress relaxation were also estimated.
| Original language | English |
|---|---|
| Pages (from-to) | 1657-1659 |
| Number of pages | 3 |
| Journal | Optics Letters |
| Volume | 26 |
| Issue number | 21 |
| DOIs | |
| Publication status | Published - 2001 Nov 1 |
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All Science Journal Classification (ASJC) codes
- Atomic and Molecular Physics, and Optics
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Residual stress relaxation in the core of optical fiber by CO2 laser irradiation. / Kim, B. H.; Park, Y.; Ahn, T. J.; Kim, Dug Young; Lee, B. H.; Chung, Y.; Paek, U. C.; Han, W. T.
In: Optics Letters, Vol. 26, No. 21, 01.11.2001, p. 1657-1659.Research output: Contribution to journal › Article
TY - JOUR
T1 - Residual stress relaxation in the core of optical fiber by CO2 laser irradiation
AU - Kim, B. H.
AU - Park, Y.
AU - Ahn, T. J.
AU - Kim, Dug Young
AU - Lee, B. H.
AU - Chung, Y.
AU - Paek, U. C.
AU - Han, W. T.
PY - 2001/11/1
Y1 - 2001/11/1
N2 - We observed residual stress relaxation by CO2 laser irradiation in the cores of optical fibers by direct stress measurement. It was demonstrated that the mechanical stress was fully relaxed by CO2 laser irradiation and that the remaining stress in the core was thermal stress that was due to a mismatch of the thermal expansion coefficients of the fiber core and cladding. The net core stresses after relaxation were 17, 68, and 203 MPa in Ge-B-codoped fibers drawn at 0.53, 1.38, and 3.48 N, respectively. Changes in the refractive indices of the cores as a result of residual stress relaxation were also estimated.
AB - We observed residual stress relaxation by CO2 laser irradiation in the cores of optical fibers by direct stress measurement. It was demonstrated that the mechanical stress was fully relaxed by CO2 laser irradiation and that the remaining stress in the core was thermal stress that was due to a mismatch of the thermal expansion coefficients of the fiber core and cladding. The net core stresses after relaxation were 17, 68, and 203 MPa in Ge-B-codoped fibers drawn at 0.53, 1.38, and 3.48 N, respectively. Changes in the refractive indices of the cores as a result of residual stress relaxation were also estimated.
UR - http://www.scopus.com/inward/record.url?scp=0000687911&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0000687911&partnerID=8YFLogxK
U2 - 10.1364/OL.26.001657
DO - 10.1364/OL.26.001657
M3 - Article
C2 - 18049690
AN - SCOPUS:0000687911
VL - 26
SP - 1657
EP - 1659
JO - Optics Letters
JF - Optics Letters
SN - 0146-9592
IS - 21
ER -