Generation of Q-switched thulium-doped fiber laser (TDFL) using differentsaturable absorbers

• Main Authors: Sharif, N. M., Yusoff, N. M., Mohd. Izhar, M. A., Ahmad, F., Harun, S. W., Ahmad, H.
• 格式: Article
• 語言: English
• 出版: Penerbit UTM Press 2016
• 主題: T Technology (General)
• 在線閱讀: http://eprints.utm.my/id/eprint/74398/1/NurhanisMohdSharif2016_GenerationofQSwitchedThulium.pdf; http://eprints.utm.my/id/eprint/74398/; https://www.scopus.com/inward/record.uri?eid=2-s2.0-84971003177&doi=10.11113%2fjt.v78.8810&partnerID=40&md5=6c1291fd53beb7e9138bbb090348b38e

A Q-switched Thulium-doped Fiber Laser (TDFL) operating at approximately 2 µm wavelength is successfully generated by using four different saturable absorbers (SAs) which are nitrogen-doped graphene in PVA (NG:PVA), nitrogen-doped graphene in PEO (NG:PEO), single-walled carbon nanotube in PVA (SWCNT:PVA), and high pressure carbon monoxide carbon nanotube in PVA (CNTHiPCO:PVA). The SAs integrated in the cavity were able to provide the real saturable absorption in modulating the intra-cavity losses. SWCNT gives the best results with the highest repetition rate and lowest pulse width of 57.45 kHz and 1.958 nJ correspondingly as compared to the other three SAs.