Tunable mode-locked laser with micro-air gap cavity. (February 2017)

• Record Type: Journal Article
• Authors: Ahmad, H.; Aidit, S.N.; Hassan, N.A.; Ooi, S.I.; Tiu, Z.C.
• Is Part Of: Optics & laser technology. Volume 88(2017)
• Page Start: 222
• Page End: 225
• Publication Date: 2017-02
• Subjects: Tunable mode-locked -- Micro-air gap -- High tuning resolution; Optics -- Periodicals; Lasers -- Periodicals; Electronic journals; 621.366
• DOI: 10.1016/j.optlastec.2016.09.016
• Languages: English
• ISSNs: 0030-3992

Abstract

Abstract: A tunable mode-locked laser with a micro-air gap cavity acting as a high resolution tuning is proposed and demonstrated. The laser utilizes the nonlinear polarization technique in the cavity to obtain a reliable and stable mode locking over the whole tuning range at a resolution of 1 nm. The micro-air gap is constructed by aligning two fiber facets coaxially, and the variation of micro-air gap introduces a tuning mechanism where it changes the gain saturation compensation in the gain medium and thus induces wavelength shifting on the generated solitons. Highlights: Demonstration of mode-locked EDFL based on NPR technique. Demonstration tunable micro-air gap in fiber laser cavity. Demonstration of tunable soliton in micro-air gap cavity. Demonstration of tunable soliton of 1 nm resolution in ITU C-band.