Fauzan Ahmad R - Academia.edu (original) (raw)
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Papers by Fauzan Ahmad R
Optics Communications, 2012
ABSTRACT We demonstrate an all-fiber passively multi-wavelength Q-switched Erbium doped fiber las... more ABSTRACT We demonstrate an all-fiber passively multi-wavelength Q-switched Erbium doped fiber laser (EDFL) based on a short Carbon Nanotube based saturable absorber. With the saturable absorber connected in a longer standing wave based fiber laser cavity, stable single, dual, and multiple wavelength Q-switched low threshold EDFL are achieved. Experimental results show that the output pulse of the filtered single wavelength has the same repetition rate as that of the multi-wavelength output while its average output power is lower than that of the multi-wavelength output.
The aim of the research was to describe mathematical literacy of junior high school students in W... more The aim of the research was to describe mathematical literacy of junior high school students in West Sumatra Indonesia. The description was focused on the competences clusters mentioned by Program for International Student Assessment (PISA), namely reproduction, connection, and reflection cluster. Based on the description, it was analyzed the factors that have influenced mathematical literacy of the students. The method used in the research was a mixing method (descriptive and qualitative). Data was collected from 188 Junior High School students who participated in Mathematical Literacy contest in West Sumatra. The results of the research show that most students only master reproduction cluster and very few of them that master reflection cluster. For each cluster, the score of most students are very low. In addition, mathematical abilities of the students are not satisfactory.
Optics Communications, 2012
ABSTRACT We demonstrate an all-fiber passively multi-wavelength Q-switched Erbium doped fiber las... more ABSTRACT We demonstrate an all-fiber passively multi-wavelength Q-switched Erbium doped fiber laser (EDFL) based on a short Carbon Nanotube based saturable absorber. With the saturable absorber connected in a longer standing wave based fiber laser cavity, stable single, dual, and multiple wavelength Q-switched low threshold EDFL are achieved. Experimental results show that the output pulse of the filtered single wavelength has the same repetition rate as that of the multi-wavelength output while its average output power is lower than that of the multi-wavelength output.
The aim of the research was to describe mathematical literacy of junior high school students in W... more The aim of the research was to describe mathematical literacy of junior high school students in West Sumatra Indonesia. The description was focused on the competences clusters mentioned by Program for International Student Assessment (PISA), namely reproduction, connection, and reflection cluster. Based on the description, it was analyzed the factors that have influenced mathematical literacy of the students. The method used in the research was a mixing method (descriptive and qualitative). Data was collected from 188 Junior High School students who participated in Mathematical Literacy contest in West Sumatra. The results of the research show that most students only master reproduction cluster and very few of them that master reflection cluster. For each cluster, the score of most students are very low. In addition, mathematical abilities of the students are not satisfactory.