Photothermal Behavior of an Optical Path Adhesive Used for Photonics Applications at 1550 nm
Applied Optics, Vol. 40, Issue 36, pp. 6611-6617 (2001)
http://dx.doi.org/10.1364/AO.40.006611
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Abstract
A theoretical and experimental study of photothermal behavior in a commercially available optical path adhesive is described. Photothermal effects were examined for cw and pulsed laser radiation (~1 μs) at 1550 nm. A fiber-optic backreflection technique was used to measure the thermo-optic glass transition temperature of the adhesive. This transition temperature was then used to calibrate fiber-optic photothermal blooming and backreflection pump–probe experiments. Simple thermal models predict ΔT at 300 mW (cw) to be 65 °C and 53 °C at 100 W (pulsed). Experimental results are in reasonable agreement with theoretical predictions. The characteristic photothermal relaxation time after a 1-μs pulse for optical path adhesives is found to be 166 μs at the end of a fiber where the mode field diameter is 10.5 μm. Photothermally induced temperatures were found to be below the thermal degradation temperature of the adhesive even at powers as high as 1 W (cw) or 100 W (pulse).
© 2001 Optical Society of America
[Optical Society of America ]
OCIS Codes
(060.2310) Fiber optics and optical communications : Fiber optics
(060.2330) Fiber optics and optical communications : Fiber optics communications
(120.6810) Instrumentation, measurement, and metrology : Thermal effects
(160.4760) Materials : Optical properties
(160.4890) Materials : Organic materials
(160.5470) Materials : Polymers
Citation
Michael DeRosa and Stephan Logunov, "Photothermal Behavior of an Optical Path Adhesive Used for Photonics Applications at 1550 nm," Appl. Opt. 40, 6611-6617 (2001)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-40-36-6611
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