Spiking suppression of high power QCW pulse 1319 nm Nd:YAG laser with different intracavity doublers
- 1 August 2016
- journal article
- Published by IOP Publishing in Laser Physics
- Vol. 26 (9), 095005
- https://doi.org/10.1088/1054-660x/26/9/095005
Abstract
We describe the results of our efforts in suppressing spiking of a high power, high beam quality 1319 nm Nd:YAG microsecond-pulse laser with three different intracavity frequency doublers. The 1319 nm laser is generated by a quasi-continuous-wave diode-pumped Nd:YAG ring laser system. One potassium titanyl phosphate (KTP), two KTPs and one lithium triborate (LBO) as frequency doublers are installed in the ring resonator and tested, respectively. At 800 Hz repetition rate, with a pulse width of 100 µs, performances of spiking suppression for each case are observed. The average output power are 23.6 W, 22.7 W and 23.4 W with beam quality factors of M 2 = 2.21, 1.28 and 1.25 for one KTP, two KTPs and one LBO, respectively. The corresponding brightness are 270 MW/(cm2sr), 780 MW/(cm2sr) and 860 MW/(cm2sr). With better beam quality, higher brightness, and easier maintainability, the LBO is the best option of the three. A laser rate equation model including the insertion loss of the doubler is applied for theoretical analysis of the output temporal pulse shape and power, and the simulated results agree well with the experimental data.Keywords
This publication has 20 references indexed in Scilit:
- High-power QCW microsecond-pulse solid-state sodium beacon laser with spiking suppression and D_2b re-pumpingOptics Letters, 2016
- High-average-power narrow-line-width sum frequency generation 589 nm laserPublished by SPIE-Intl Soc Optical Eng ,2015
- Diode-end-pumped passively Q-switched 1319 nm Nd:YAG ceramic laser with a V3+:YAG saturable absorberLaser Physics, 2011
- CW light sources at the 589 nm sodium D2 line by sum-frequency mixing of diode pumped neodymium lasersLaser Physics Letters, 2010
- High power continues wave laser diode array end pumped Nd:YAG/LBO red lasers operated at 669 nm and 659 nmLaser Physics, 2010
- Compact corner-pumped Nd:YAG/YAG composite slab 1319 nm/1338 nm laserLaser Physics Letters, 2010
- Efficient 1.34-μm laser emission of Nd-doped vanadates under in-band pumping with diode lasersLaser Physics Letters, 2009
- 20W of continuous-wave sodium D_2 resonance radiation from sum-frequency generation with injection-locked lasersOptics Letters, 2003
- Pulse-train excitation of sodium for use as a synthetic beaconJournal of the Optical Society of America B, 1992
- Experiments on laser guide stars at Mauna Kea Observatory for adaptive imaging in astronomyNature, 1987