High-peak-power intracavity OPO transmitter at 1572 nm

Waldemar Żendzian; Jan K. Jabczyński; Jacek Kwiatkowski

doi:10.1117/12.664390

12 May 2006 High-peak-power intracavity OPO transmitter at 1572 nm

Waldemar Żendzian, Jan K. Jabczyński, Jacek Kwiatkowski

Proceedings Volume 6216, Laser Source and System Technology for Defense and Security II; 62160T (2006) https://doi.org/10.1117/12.664390
Event: Defense and Security Symposium, 2006, Orlando (Kissimmee), Florida, United States

Abstract

The efficient, eye-safe, high repetition rate, intracavity optical parametric oscillator (IOPO) inside acousto-optic Q-switched Nd:YVO₄ laser end pumped by 15-W fiber coupled diode was demonstrated. The pumping Q-switched laser gives 3-W average output power at 1064-nm wavelength and 40-kHz repetition rate. The additional separating mirror, 'x-cut' KTP crystal and the output coupler, highly reflective at 1064-nm and partially transparent at 1572-nm wavelength, form flat-flat IOPO resonator of 35-mm length. We have achieved 3-ns duration pulses for 20-mm long KTP and 4-ns duration pulses for 30-mm KTP length, respectively. Above 10-kW peak power pulses with the average power of 1.5 W at the signal wavelength for 40 kHz repetition rate were demonstrated. Due to intracavity gain guiding effect, diffraction limited signal beam was achieved. Conversion efficiency of 50% with respect to Q-switched output at 1064-nm wavelength and 11% with respect to diode pump power were achieved.

Citation Download Citation

Waldemar Żendzian, Jan K. Jabczyński, and Jacek Kwiatkowski "High-peak-power intracavity OPO transmitter at 1572 nm", Proc. SPIE 6216, Laser Source and System Technology for Defense and Security II, 62160T (12 May 2006); https://doi.org/10.1117/12.664390

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KEYWORDS

Ferroelectric materials

Optical parametric oscillators

Crystals

Q switched lasers

Q switching

Diodes

Mirrors

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