Nanotube mode-locker with tuneable wavelength

• Main Authors: Muhamad Apandi, Nur Hidayah, Ahmad, Fauzan, Ahmad, Harith, Zuikafly, Siti Nur Fatin, Ibrahim, Mohd. Haniff
• Format: Conference or Workshop Item
• Language: English
• Published: 2020
• Subjects: TA Engineering (General). Civil engineering (General)
• Online Access: http://eprints.utm.my/id/eprint/90403/1/NurHidayahMuhamad2020_NanotubeModeLockerwithTuneableWavelength.pdf; http://eprints.utm.my/id/eprint/90403/; http://dx.doi.org/10.1109/ICSE49846.2020.9166888
• Institution: Universiti Teknologi Malaysia

A wavelength-tunable passively Erbium-doped mode-locked fiber laser by residing single-walled carbon nanotubes (SWCNTs) embedded in polyethylene oxide (PEO) based saturable absorber (SA) is demonstrated. The mode-locker is fabricated by solution casting method of single-walled carbon nanotubes embedded in polyethylene oxide as host polymer. The fabricated nanotube based mode-locker is resided in Erbium doped fiber laser in ring cavity. In this experiment, tuning is performed using a tunable Mach-Zehnder filter (TMZF) for the tuning of output wavelength continuity of 20 nm (from 1544 nm to 1564 nm). The tunable pulse duration is range from 300 fs to 435 fs, maximum output power of 0.91 mW and signal to noise ratio (SNR) of 40 dB.