Wavelength Filtering Devices

Sub-kHz lasing of a CaF$_2$ whispering gallery mode resonator stabilized fiber ring laser
We utilize a high quality calcium fluoride whispering-gallery-mode resonator to passively stabilize a simple erbium doped fiber ring …
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CaF$_2$ whispering-gallery-mode-resonator stabilized-narrow-linewidth laser
A fiber laser is stabilized by introducing a calcium fluoride (CaF$_2$) whispering-gallery-mode resonator as a filtering element in a …
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Whispering-gallery-mode-resonator-stabilized narrow-linewidth fiber loop laser
We demonstrate a narrow-line fiber loop laser using erbium-doped fiber as gain material, stabilized by using a microsphere as a …
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