Diode-pumped single-mode fluorozirconate fiber laser from the sup 4 I sub 11/2 r arrow sup 4 I sub 13/2 transition in erbium

Journal Article · Mon Apr 23 04:00:00 EDT 1990 · Applied Physics Letters; (USA)

DOI:https://doi.org/10.1063/1.103149· OSTI ID:6944230

Allen, R; Esterowitz, L ^[1]; Ginther, R J ^[2]

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1. Naval Research Laboratory, 4555 Overlook Avenue, S. W., Washington, DC 20375-5000 (USA)
2. Sachs Freeman Associates, 1401 McCormick Drive, Landover, Maryland 20785 (USA)

Diode-pumped cw lasing at 2.71, 2.75, and 2.78 {mu}m from an erbium-doped ZBLAN single-mode fiber is reported for the first time. A threshold of 4 mW absorbed power at 792 nm was obtained for the 2.71 {mu}m transition. 3% slope efficiency was obtained with an 80% reflecting output mirror. cw lasing was also observed from the fiber when a tunable pump was scanned across most of the {sup 4}{ital I}{sub 15/2}{r arrow}{sup 4}{ital I}{sub 9/2} absorption band. cw lasing observed when pumping around 820 nm indicates that excited-state absorption of the pump from the {sup 4}{ital I}{sub 13/2} may not be necessary for cw operation. However, excited-state absorption of the pump around 810 nm from the {sup 4}{ital I}{sub 11/2} may limit performance.

• OSTI ID: 6944230
• Journal Information: Applied Physics Letters; (USA), Journal Name: Applied Physics Letters; (USA) Vol. 56:17; ISSN APPLA; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
426002* -- Engineering-- Lasers & Masers-- (1990-)
CHARGED PARTICLES
EFFICIENCY
EMISSION
ENERGY-LEVEL TRANSITIONS
ERBIUM IONS
FIBERS
IONS
LASERS
OPERATION
OPTICAL FIBERS
OPTICAL PUMPING
OXYGEN COMPOUNDS
PERFORMANCE
PUMPING
QUANTUM EFFICIENCY
SOLID STATE LASERS
STIMULATED EMISSION
TRANSITION ELEMENT COMPOUNDS
ZIRCONATES
ZIRCONIUM COMPOUNDS