Narrow linewidth DFB waveguide laser fabricated via ultrafast laser inscription
Duan, Yuwen, Dekker, Peter, Jaatinen, Esa, Foster, Scott, Ams, Martin, Steel, M. J., & Withford, Michael J. (2014) Narrow linewidth DFB waveguide laser fabricated via ultrafast laser inscription. IEEE Photonics Technology Letters, 26(24), pp. 2499-2502.
Linewidth measurement of a femtosecond laser direct-written distributed feedback (DFB) waveguide laser (WGL) is reported. The WGL was fabricated in Yb-doped phosphate glass using the femtosecond laser direct-write technique. The linewidth was measured using a loss-compensated recirculating delayed self-heterodyne interferometer. By recirculating the output signal in a 10.2-km fiber delay loop, the linewidth was measured to be 35.4±1.4 kHz at a delay time of 306 μs , which is comparable with that of narrow-linewidth fiber DFB lasers.
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|Item Type:||Journal Article|
|Divisions:||Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > QUT Faculties and Divisions > Science & Engineering Faculty
|Deposited On:||27 Oct 2015 01:35|
|Last Modified:||27 Oct 2015 01:35|
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