An all fibre, widely tunable, single frequency, semiconductor ring laser was constructed with a narrow linewidth of 35kHz. Tuning over 50nm was electronically obtained using a fibre Fabry Perot filter as a selected wavelength element. Single-frequency operation was demonstrated with sidemode suppression higher than 35dB.
Published in:
Electronics Letters
(Volume:29
,
Issue:
23
)
Date of Publication: 11 Nov. 1993