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Room-temperature upconversion fiber laser tunable in the red, orange, green, and blue spectral regions

Journal Article · · Optics Letters
;  [1]
  1. Los Alamos National Laboratory, Mail Stop E543, Los Alamos, New Mexico 87545 (United States)

We report continuous-wave tunable laser operation over the 635--637-, 605--622-, 517--540-, and 491-- 493-nm wavelength bands in Pr{sup 3+}/Yb{sup 3+}-doped ZrF{sub 4}--BaF{sub 2}--LaF{sub 3}--AlF{sub 3}--NaF (ZBLAN) optical fiber. A single Ti:sapphire laser is used as the pump source. With as little as 60 mW of pump power launched into the fiber, laser output is obtained over the entire pump-wavelength tuning range of 780 to 880 nm. At a pump wavelength of 860 nm, we have produced output powers of 300 mW at 635 nm (760 mW of launched pump power), 45 mW at 615 nm (430 mW of launched power), 20 mW at 520 nm (200 mW of launched power), and 4 mW at 493 nm (200 mW of launched power).

Sponsoring Organization:
USDOE
OSTI ID:
54920
Journal Information:
Optics Letters, Journal Name: Optics Letters Journal Issue: 9 Vol. 20; ISSN 0146-9592; ISSN OPLEDP
Country of Publication:
United States
Language:
English

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