Efficient and Compact Yb:YAG Ring Laser

Yi, Junyan; Chen, Li-Hsuan; Huang, Sheng‐Lung

doi:10.1109/jqe.2006.877222

Cited by 6 publications

(4 citation statements)

References 21 publications

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“…such as Zeemax [6]). Reentrant rays in stable resonators afford some advantages for maintaining polarization states at laser outputs [7], or for reducing cavity lengths of some lasers [7][8][9].…”

Section: Discussionmentioning

confidence: 99%

Effect of Diffraction on Wigner Distributions of Optical Fields and how to Use It in Optical Resonator Theory. III -- Ray Tracing in Resonators

Pellat-Finet¹,

Fogret²

2022

Preprint

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The third part of the paper is devoted to ray tracing in optical resonators. The employed method for dealing with the issue uses the elliptical or hyperbolic rotations that Wigner distributions associated with optical fields undergo during propagation from one spherical mirror of a resonator to the other. It is illustrated by various examples concerning meridional or skew rays, reentrant in stable resonators or propagating in unstable resonators. A classification of optical resonators is eventually deduced.

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Section: Discussionmentioning

confidence: 99%

Effect of Diffraction on Wigner Distributions of Optical Fields and how to Use It in Optical Resonator Theory. III -- Ray Tracing in Resonators

Pellat-Finet¹,

Fogret²

2022

Preprint

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“…The MPRC [15][16][17] was constructed with a pair of identical spherical mirrors with the radius of curvature R, as shown in Fig. 1(a).…”

Section: Multipass Ring Cavitymentioning

confidence: 99%

“…Although the counter propagating beams in the cavity are expected to have the same round-trip optical path length, we observed that a small slight path length difference existed. 17) Using a fast photodiode to detect the beat frequencies of the longitudinal modes of the counter propagating beams, a 10.2 kHz difference in beat frequency was measured in the ð2; 1Þ MPRC. It is equivalent to an optical path length difference of 0.37 mm.…”

Section: (B)-5(d)mentioning

confidence: 99%

Compact Passively Q-Switched Yb:YAG Multipass Ring Lasers

Chen

Peng

et al. 2009

Jpn. J. Appl. Phys.

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An efficient and compact continuous-wave Yb:YAG laser with a slope efficiency of 50.3% with respect to the absorbed power was demonstrated using a multipass ring cavity (MPRC). Large cavity length ranges can be implemented using MPRCs with the same optical elements but different beam configurations. When Cr:YAG was used as the saturable absorber for passive Q-switching, various pulse widths and repetition rates were obtained. When a two-mirror MPRC, which is a compact ring laser cavity was used, the spatial holeburning effect was reduced, and the spontaneous noise from the gain medium was not directly incident on the saturable absorber, causing less perturbation of the population difference of the saturable absorber than that of a linear cavity. This indicates that MPRCs can reduce the time jitter problem of a passively Q-switched laser. In this study, a Yb:YAG MPRC laser with a 33 ns pulse width is demonstrated, and the timing jitter of the repetition period was restrained to around 11%. The obtained experimental results are in good agreement with simulation results.

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“…16,17) Besides microchip laser gain media, a thin Yb:YAG crystal is also eminently suitable for the multipass ring cavity (MPRC). 18) A thin crystal is less destructive to the beam path symmetry and helps to maintain the MPRC stability. With the proper package, the Yb:YAG crystal fiber is beneficial in improving the heat dissipation in the quasithree-level laser scheme.…”

Section: Introductionmentioning

confidence: 99%

Ytterbium-Doped Yettrium Aluminum Garnet Crystal Fiber Multipass Ring Laser

Yi¹,

Huang

Lai

et al. 2010

Jpn. J. Appl. Phys.

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We report the growth of ytterbium-doped yettrium aluminum garnet (Yb:YAG) crystal fibers by the laser-heated pedestal growth (LHPG) method. The characteristics of Yb:YAG crystal fibers were analyzed by electron probe microanalyzer (EPMA) and X-ray diffraction measurements. The small crystal fiber diameter makes it effective for heat removal from a high-Yb 3þ -concentration and quasi-three-level gain medium. The length of this crystal-fiber-based high absorption can be shorter, which is eminently suitable for a multipass ring cavity to maintain cavity stability and mode symmetry. We successfully demonstrated a two-mirror multipass ring laser with 54.7% slope efficiency, which is higher than the 50.3% for a bulk Yb:YAG laser. #

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Efficient and Compact Yb:YAG Ring Laser

Cited by 6 publications

References 21 publications

Effect of Diffraction on Wigner Distributions of Optical Fields and how to Use It in Optical Resonator Theory. III -- Ray Tracing in Resonators

Effect of Diffraction on Wigner Distributions of Optical Fields and how to Use It in Optical Resonator Theory. III -- Ray Tracing in Resonators

Compact Passively Q-Switched Yb:YAG Multipass Ring Lasers

Ytterbium-Doped Yettrium Aluminum Garnet Crystal Fiber Multipass Ring Laser

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