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

Journal Article · Tue Oct 01 00:00:00 EDT 1996 · Optics Letters

DOI:https://doi.org/10.1364/OL.21.001676· OSTI ID:434741

Yang, S T; Imai, Y; Oka, M; Eguchi, N; Kubota, S ^[1]

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1. Kubota Opto-Electronics Laboratory, Sony Research Center, 6-7-35 Kitashinagawa, Shinagawa-ku, Tokyo, 141 (Japan)

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, TEM{sub 00}-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{times}10{sup {minus}5}/{radical}Hz and 50 Hz/{radical}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 m Hz/{radical}Hz was measured at the frequency-stabilization loop error point at 1 kHz. {copyright} {ital 1996 Optical Society of America.}

• Sponsoring Organization: USDOE
• OSTI ID: 434741
• Journal Information: Optics Letters, Vol. 21, Issue 20; Other Information: PBD: Oct 1996
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES
NEODYMIUM LASERS
DESIGN
PERFORMANCE
POWER RANGE 01-10 W
EFFICIENCY
STABILITY