Tunable Cr{sup 4+}: YSO Q-switched Cr:LiCAF laser

Journal Article · Sat Apr 01 04:00:00 EST 1995 · IEEE Journal of Quantum Electronics

OSTI ID:46106

Kuo, Y K; Huang, M F; Birnbaum, M ^[1]

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1. Univ. of Southern California, Los Angeles, CA (United States). Center for Laser Studies

Tunable passive Q-switching (781 nm to 806 nm) at a flash-lamp pumped Cr{sup 3+}:LiCaAlF{sub 6} (Cr:LiCAF) laser with a Cr{sup 4+}:Y{sub 2}SiO{sub 5} (Cr{sup 4+}:YSO) broad-band solid-state saturable has been realized. Typical pulse widths of the switched laser output ranged from 40 ns to 80 ns, depending on the lasing wavelength. Spectral narrowing and reduced beam diameter with the use of the saturable absorber were observed. The ground state and the excited state absorption cross sections of the Cr{sup 4+}:YSO absorber were found by bleaching experiments to be (7.0 {+-} 1.4) {times} 10{sup {minus}19} cm{sup 2} and (2.3 {+-} 0.5) {times} 10{sup {minus}19} cm{sup 2} at 694 nm, respectively. Numerical simulation was utilized to simulate the Cr:LiCAF passive Q-switching with Cr{sup 4+}:YSO solid-state saturable absorber.

• OSTI ID: 46106
• Journal Information: IEEE Journal of Quantum Electronics, Journal Name: IEEE Journal of Quantum Electronics Journal Issue: 4 Vol. 31; ISSN 0018-9197; ISSN IEJQA7
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
ALUMINIUM FLUORIDES
CALCIUM FLUORIDES
CHROMIUM IONS
COMPUTERIZED SIMULATION
DOPED MATERIALS
LASER MATERIALS
LITHIUM FLUORIDES
OPTICAL PUMPING
Q-SWITCHING
SOLID STATE LASERS