Mode Converter and Quadrant Photodiode for Sensing Optical Cavity Mode Mismatch

Daniel Vander-Hyde (Inventor), Fabian Magana-Sandoval (Inventor), Jax Sanders (Inventor), Stefan Werner Ballmer (Inventor), Thomas Vo (Inventor)

Research output: Patent

Abstract

A new technique for sensing optical cavity mode mismatch using a mode converter formed from a cylindrical lens mode converting telescope, radio frequency quadrant photodiodes (RFQPDs), and a heterodyne detection scheme. The telescope allows the conversion of the Laguerre-Gauss basis to the Hermite-Gauss (HG) basis, which can be measured with quadrant photodiodes. Conversion to the HG basis is performed optically, measurement of mode mismatched signals is performed with the RFQPDs, and a feedback error signal is obtained with heterodyne detection.
Original languageEnglish (US)
StatePublished - Dec 27 2018

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quadrants
photodiodes
converters
cavities
radio frequencies
telescopes
error signals
lenses

Cite this

Vander-Hyde, D., Magana-Sandoval, F., Sanders, J., Ballmer, S. W., & Vo, T. (2018). Mode Converter and Quadrant Photodiode for Sensing Optical Cavity Mode Mismatch.

Mode Converter and Quadrant Photodiode for Sensing Optical Cavity Mode Mismatch. / Vander-Hyde, Daniel (Inventor); Magana-Sandoval, Fabian (Inventor); Sanders, Jax (Inventor); Ballmer, Stefan Werner (Inventor); Vo, Thomas (Inventor).

Research output: Patent

Vander-Hyde, D, Magana-Sandoval, F, Sanders, J, Ballmer, SW & Vo, T 2018, Mode Converter and Quadrant Photodiode for Sensing Optical Cavity Mode Mismatch.
Vander-Hyde D, Magana-Sandoval F, Sanders J, Ballmer SW, Vo T, inventors. Mode Converter and Quadrant Photodiode for Sensing Optical Cavity Mode Mismatch. 2018 Dec 27.
Vander-Hyde, Daniel (Inventor) ; Magana-Sandoval, Fabian (Inventor) ; Sanders, Jax (Inventor) ; Ballmer, Stefan Werner (Inventor) ; Vo, Thomas (Inventor). / Mode Converter and Quadrant Photodiode for Sensing Optical Cavity Mode Mismatch.
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abstract = "A new technique for sensing optical cavity mode mismatch using a mode converter formed from a cylindrical lens mode converting telescope, radio frequency quadrant photodiodes (RFQPDs), and a heterodyne detection scheme. The telescope allows the conversion of the Laguerre-Gauss basis to the Hermite-Gauss (HG) basis, which can be measured with quadrant photodiodes. Conversion to the HG basis is performed optically, measurement of mode mismatched signals is performed with the RFQPDs, and a feedback error signal is obtained with heterodyne detection.",
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