Polarization and wavelength stable superfluorescent sources

Details Polarization and wavelength stable superfluorescent sources Polarization and wavelength stable superfluorescent sources

H - Electricity

01

S

H01S 3/091 (2006.01) G01C 19/72 (2006.01)

Patent

CA 2686812

The instability of the mean wavelength of a superfluorescent fiber source (SFS) is reduced by randomizing the polarization of light from a pump source or by using polarization maintaining components. In one embodiment, the polarization of a pump source is made more random, leading to greater stability of the mean wavelength of the SFS, with an output mean wavelength that is stable to better than 3 ppm for full rotation of the pump polarization on state. In another embodiment, the polarization of optical radiation throughout the device is kept substantially constant by using polarization maintaining fiber and components, thereby leading to enhanced mean wavelength stability of the SFS.

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