Efficient Nd:YAG laser end pumped by a high-power multistripe laser-diode bar with multiprism array coupling

Journal Article · Fri Mar 01 04:00:00 EST 1996 · Applied Optics

DOI:https://doi.org/10.1364/AO.35.001430· OSTI ID:288859

Yamaguchi, S ^[1]; Kobayashi, T; Saito, Y; Chiba, K ^[2]

---

1. Electronics Research Laboratories, Nippon Steel Corporation, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 229 (Japan)
2. Electronics and Information Division, Nippon Steel Corporation (Japan)

A 10-W laser-diode bar, a multistripe monolithic laser-diode array, has been used to end pump Nd:YAG. Twelve beams emitted from 12 stripes, spaced 800 {mu}m apart, of a 1-cm linear diode array were collimated with a multiprism array consisting of 14 prismlets with 800-{mu}m width to pump the Nd:YAG facet. The maximum Nd:YAG cw output power at 1064 nm of 3 W was obtained at 10-W laser-diode-bar power with a slope efficiency of 35{percent}, and a TEM{sub 00} spatial mode with values of beam-quality factor {ital M}{sup 2} of 1.29 and 1.76 in the planes perpendicular and parallel to the junction, respectively. A pulse width of 25.2 ns (1-kHz repetition) was obtained in acousto-optic {ital Q}-switched operation. {copyright} {ital 1996 Optical Society of America.}

• Sponsoring Organization: USDOE
• OSTI ID: 288859
• Journal Information: Applied Optics, Journal Name: Applied Optics Journal Issue: 9 Vol. 35; ISSN APOPAI; ISSN 0003-6935
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
BEAM PROFILES
DESIGN
EFFICIENCY
NEAR INFRARED RADIATION
NEODYMIUM LASERS
OPTICAL PUMPING
PERFORMANCE
POWER RANGE 01-10 W