An efficient multiwavelength light source based on ASE slicing

Harun, Sulaiman Wadi and Rahman, Faidz Abd and Dimyati, Kaharudin and Ahmad, Harith (2013) An efficient multiwavelength light source based on ASE slicing. Laser Physics Letters, 3 (10). pp. 495-497. ISSN 1612-2011, DOI

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A multiwavelength light source based on a flat-gain erbium-doped fiber amplifier (EDFA) and loop miffor is experimentally demonstrated for single-pass and double-pass scheme. IsoGain™ erbium-doped fiber is used as a gain medium for the EDFA, which has a flat-gain or 13.5 dB for the input power of O dBm with gain flatness of less than 1 dB at wavelength region from 1530 nm to 1570 nm. The loop mirror is constructed using a 3 dB coupler and polarization maintaining fiber (PMF). The source generates up to 25 channels within 10 nm bandwidth of 1550 nm region with a channel spacing of 0.4 nm. The channel spacing can be varied by controlling the length of the PMF. The output power of double-pass scheme is obtained at about -41 dBm, which is more than 15 dB higher compared with single-pass scheme. However, the signal to noise ratio is only about 4 dB for the double-pass scheme compared with more than 60 dB for the sinele-pass scheme. A graph is presented. Gain spectrum of the flat-gain EDFA at various input signal power.

Item Type: Article
Uncontrolled Keywords: EDFA; IsoGain™; Loop mirror; Multi-wavelength light source
Subjects: Q Science > Q Science (General)
Q Science > QC Physics
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Engineering
Faculty of Science > Department of Physics
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 17 Oct 2018 03:11
Last Modified: 17 Oct 2018 03:11

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