Sub-kHz lasing of a CaF₂ whispering gallery mode resonator stabilized fiber ring laser.
نویسندگان
چکیده
We utilize a high quality calcium fluoride whispering-gallery-mode resonator to passively stabilize a simple erbium doped fiber ring laser with an emission frequency of 196THz (wavelength 1530nm) to an instantaneous linewidth below 650Hz. This corresponds to a relative stability of 3.3 × 10(-12) over 16μs. In order to characterize the linewidth we use two identical self-built lasers and a commercial laser to determine the individual lasing linewidth via the three-cornered-hat method. We further show that the lasers are finely tunable throughout the erbium gain region.
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ورودعنوان ژورنال:
- Optics express
دوره 22 16 شماره
صفحات -
تاریخ انتشار 2014