Tunable single longitudinal mode S-band fiber laser using a 3 m length of erbium-doped fiber

• Main Authors: Ahmad, Harith, Zulkifli, Mohd Zamani, Latif, Amirah Abdul, Jemangin, M.H., Chong, Su Sin, Harun, Sulaiman Wadi
• Format: Article
• Published: Taylor & Francis 2012
• Subjects: QC Physics; TK Electrical engineering. Electronics Nuclear engineering
• Online Access: http://eprints.um.edu.my/19892/; https://doi.org/10.1080/09500340.2011.626900
• Institution: Universiti Malaya

In this paper a tunable single-longitudinal mode (SLM), short-wavelength band (S-band) fiber laser using a conventional erbium-doped fiber (EDF) with a length of 3m and a step index erbium dopant profile as opposed to the commonly used depressed cladding erbium-doped fiber (DC-EDF) is proposed and demonstrated. The proposed SLM fiber laser has a tuning range of 1496 to 1507nm in a ring configuration using two 0.15m of EDF which acts as saturable absorbers (SAs). The highest peak power measured is about 0.6dBm at a wavelength range of 1502 to 1507nm. The measured signal-to-noise ratio (SNR) is approximately 74dB for the same wavelength range. The line-width of the SLM output is measured to be 140kHz.