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Optics Letters

Optics Letters


  • Vol. 21, Iss. 20 — Oct. 15, 1996
  • pp: 1676–1678

Frequency-stabilized, 10-W continuous-wave, laser-diode end-pumped, injection-locked Nd:YAG laser

S. T. Yang, Y. Imai, M. Oka, N. Eguchi, and S. Kubota  »View Author Affiliations

Optics Letters, Vol. 21, Issue 20, pp. 1676-1678 (1996)

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We describe an efficient and highly stable injection-locked, laser-diode end-pumped cw Nd:YAG laser. With 22.3-W pump input from two fiber-coupled laser diodes, combined with 700 mW of power injected by a single-frequency master laser, the injection-locked slave laser emits 10 W of linearly polarized, TEM00-mode output in a single longitudinal mode. In addition to high efficiency, the injection-locked laser also possesses excellent output stability. At 300 Hz, the measured relative intensity noise and the frequency-noise spectral density are 2 × 10 / Hz and 50 Hz / Hz, respectively. To improve frequency stability further, we lock the frequency of the injection-locked laser to an external high-finesse reference cavity. When the frequency was stabilized, a minimum frequency-noise spectral density of 40 mHz / Hz was measured at the frequency-stabilization loop error point at 1 kHz.

© 1996 Optical Society of America

Original Manuscript: June 3, 1996
Published: October 15, 1996

S. T. Yang, Y. Imai, M. Oka, N. Eguchi, and S. Kubota, "Frequency-stabilized, 10-W continuous-wave, laser-diode end-pumped, injection-locked Nd:YAG laser," Opt. Lett. 21, 1676-1678 (1996)

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