Measurement of Parameters of Frequency-Locked Two-Mirror Laser Resonator

Conference paper
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 472)


A Fabry Perot cavity, resonating cavity or optical resonator is an arrangement of mirrors that forms a standing wave cavity resonator for light waves. During resonance, a slight misalignment in position can result in high losses associated with Q-factor. In this experiment, position feedback and temperature feedback systems are used for the stable operation of resonator. The peizo actuator-controlled mirror stages are used to compensate for misalignment while RTD-based temperature feedback system is used to control experiment temperature. Measurement of FSR, finesse and enhancement factor of laser resonator is done during stable resonance condition. An optical cavity is formed with a gold-coated coverslip. The parameters of gold slip cavity are obtained with high-resolution spectrograph with the broadband super continuum incident light.




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© Springer Nature Singapore Pte Ltd. 2018

Authors and Affiliations

  1. 1.Department of PhysicsAmrita UniversityKollamIndia
  2. 2.Tata Institute of Fundamental ResearchMumbaiIndia

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