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High-power, hybrid Er:fiber/Tm:fiber frequency comb source in the 2 μm wavelength region |
Optics Letters, Vol. 37, Issue 9, pp. 1400-1402 (2012)
http://dx.doi.org/10.1364/OL.37.001400
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Abstract
We present a 2 μm frequency comb based on a reliable mode-locked Er:fiber laser with 100 MHz repetition rate. After shifting the spectrum of the amplified Er:fiber comb to longer wavelengths, a single-clad Tm/Ho:fiber is used as a self-pumped pre-amplifier to generate a coherent and broadband spectrum centered at 1.93 μm. Subsequently, a cladding-pumped Tm:fiber amplifier boosts the system to a maximum output power of 4.8 W at 1.96 μm. After compression in a compact grating compressor, our amplified Er:fiber/Tm:fiber hybrid system delivers as much as 2.9 W with a pulse duration of 141 fs. The system’s comb properties are examined via heterodyne measurement.
© 2012 Optical Society of America
OCIS Codes
(140.3510) Lasers and laser optics : Lasers, fiber
(190.4370) Nonlinear optics : Nonlinear optics, fibers
(320.7090) Ultrafast optics : Ultrafast lasers
(320.7160) Ultrafast optics : Ultrafast technology
ToC Category:
Ultrafast Optics
History
Original Manuscript: January 31, 2012
Manuscript Accepted: February 13, 2012
Published: April 18, 2012
Citation
Florian Adler and Scott A. Diddams, "High-power, hybrid Er:fiber/Tm:fiber frequency comb source in the 2 μm wavelength region," Opt. Lett. 37, 1400-1402 (2012)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-37-9-1400
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