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Actively Q-switched miniature Nd:YAG ring laser in single-frequency operation

Actively Q-switched miniature Nd:YAG ring laser in single-frequency operation

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The active Q-switching of a miniature Nd:YAG ring laser in single-frequency operation has been realised. Pulse parameters are controlled by a Cr4+:YAG saturable absorber while the trigger is actively provided by a frustrated total internal reflection switch. With repetition rates up to 3 kHz, pulsewidths range from 3.4 to 9 ns, and pulse energies from 30 to 53 µJ.

Inspec keywords: solid lasers; Q-switching; neodymium; optical switches; optical saturable absorption; ring lasers; laser frequency stability

Other keywords: repetition rates; YAG:Cr; YAl5O12:Cr; frustrated total internal reflection switch; 3.4 to 9 ns; YAG:Nd; actively Q-switched miniature Nd:YAG ring laser; pulsewidths; Cr4+:YAG saturable absorber; pulse parameters; single-frequency operation; YAl5O12:Nd; pulse energies

Subjects: Optical bistability, multistability and switching; Optical saturation and related effects; Laser beam modulation, pulsing and switching; mode locking and tuning; Design of specific laser systems; Optical transient phenomena, self-induced transparency, optical saturation and related effects; Solid lasers; Laser beam modulation, pulsing and switching; mode locking and tuning; Laser resonators and cavities; Lasing action in other solids; Laser resonators and cavities; Optical bistability, multistability and switching

References

    1. 1)
      • I. Freitag , A. Tünnermann , H. Welling . Power scaling of diode-pumped monolithic Nd:YAG lasers to output powersof several watts. Opt. Commun. , 511 - 515
    2. 2)
      • B. Braun , U. Keller . Single-frequency Q-switched ring laser with an antiresonant Fabry-Perotsaturable absorber. Opt. Lett. , 1020 - 1022
    3. 3)
      • I. Freitag , A. Tünnermann , H. Welling . Passively Q-switched Nd:YAG ring laser with high average output power. Opt Lett. , 706 - 708
    4. 4)
      • T.J. Kane , R.L. Byer . Monolithic, unidirectional single-mode Nd:YAG ring laser. Opt. Lett. , 65 - 67
    5. 5)
      • P.K. Lam , I. Freitag , M. Bode , A. Tünnermann , H. Welling . High average power Q-switched second harmonic generation with diode-pumpedNd:YAG laser. Electron. Lett. , 666 - 668
http://iet.metastore.ingenta.com/content/journals/10.1049/el_19981521
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