• Proceedings of the Korea Electromagnetic Engineering Society Conference
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• 2005.11a
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• pp.3-6
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• 2005

In this thesis, We researched on the characteristics of optical tunable filter that selects the channel by the wavelength changes of transmission spectrum when we apply outer physical quantities on a fiber bragg grating by using Fabry-Perot Interformer's operational principle.

• Proceedings of the IEEK Conference
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• 2008.06a
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• pp.483-484
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• 2008

In this paper, we present high-temperature characteristics of tunable all-optic filter using fiber Bragg grating(FBG), including peak reflectivity, FWHM bandwidth, refractive index change along temperature variation. The characteristics of a FBG tunable filter with refractive index change is affected by its thermal stability.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2006.10a
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• pp.335-336
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• 2006

• Proceedings of the Optical Society of Korea Conference
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• 2007.02a
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• pp.88-89
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• 2007

• Proceedings of the Optical Society of Korea Conference
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• 2007.07a
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• pp.45-46
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• 2007

• Proceedings of the Optical Society of Korea Conference
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• 2007.02a
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• pp.291-292
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• 2007

• Proceedings of the Korea Air Pollution Research Association Conference
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• 2003.11a
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• pp.247-248
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• 2003

Tunable diode laser absorption spectroscopy (TDLAS) has been widely used in environmental monitoring of gaseous species in the past decade. TDLAS is a direct measurement technique for pollutants such as NOx without any interference from other species. Because of its superior spectral purity (～0.001 ­$cm^{-1}$), absorption linewidths with resolvable rotational structure can be studied in the mid infrared region where strong fundamental vibrational transitions of molecules appear. (omitted)

• Proceedings of the Optical Society of Korea Conference
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• 2005.07a
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• pp.322-323
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• 2005

• Proceedings of the Optical Society of Korea Conference
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• 2005.07a
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• pp.108-109
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• 2005

• Proceedings of the Optical Society of Korea Conference
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• 2008.02a
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• pp.353-354
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• 2008