Investigation of a polarization-based Cr:forsterite laser resonator cavity

• Published in: Journal of modern optics Vol. 68; no. 13; pp. 707 - 716
• Main Authors: Sahoo, Siba Prasad, Rawat, V. S., Mukherjee, Jaya, Pradhan, Swarupananda
• Format: Journal Article
• Language: English
• Published: Abingdon Taylor & Francis 29-07-2021; Taylor & Francis Ltd
• Subjects: Cavity resonators; Continuity (mathematics); Coupling; Cr:forsterite laser; delay synchronization; Forsterite; gain coefficient; intracavity energy; Investigations; Jones matrix; Lasers; Mathematical analysis; Optical polarization; Optimization; Polarization resonator cavity; Pulse duration; resonator losses; Synchronism; variable output coupling
• ISSN: 0950-0340; 1362-3044
• DOI: 10.1080/09500340.2021.1945155

A polarization-based laser resonator cavity with continuous variable output coupling is investigated using Cr:forsterite crystal as the gain medium. The confocal resonator cavity houses intracavity polarization optics for continuous tuning of the output coupler. The variation in the coupling efficiency is suitably explained by calculation based on Jones matrix formalism. The established resonator cavity is found to be advantageous for fine control over the cavity output energy, intracavity energy, cavity buildup time, laser pulse width, and threshold pump energy. The theoretically estimated output energy is in good agreement with the experimental results. The investigated system provides flexible optimization of the laser parameters and can be useful for all optical synchronization of multiple laser pulses as desired in many spectroscopic experiments.