TY - JOUR
T1 - Half-mJ all-fiber-based single-frequency nanosecond pulsed fiber laser at 2-μm
AU - Fang, Qiang
AU - Shi, Wei
AU - Petersen, Eliot
AU - Kieu, Khanh
AU - Chavez-Pirson, Arturo
AU - Peyghambarian, Nasser
N1 - Funding Information:
Manuscript received October 11, 2011; revised October 27, 2011; accepted November 29, 2011. Date of publication December 22, 2011; date of current version February 10, 2012. This work was supported in part by Air Force STTR under Project FA9550-10-C-0105 and in part by the National Science Foundation Engineering Research Center for Integrated Access Networks, CIAN.
PY - 2012
Y1 - 2012
N2 - We report a high energy, high peak power, all-fiber-based single-frequency ∼15-ns pulsed laser source at ∼1918.4 nm in master oscillator-power amplifier configuration. The pulsed fiber laser seed was achieved by directly modulating a continuouswave single-frequency fiber laser using an electro-optic modulator driven by an arbitrary waveform generator to pre-shape the pulses before amplification to mitigate pulse steepening and dynamic gain saturation. One piece of large (25-μm) core, polarization-maintaining highly thulium-doped germanate glass fiber was used in the power amplifier stage to boost the energy and the peak power of the 15-ns pulses to >0.5 mJ and >33 kW without any nonlinearities.
AB - We report a high energy, high peak power, all-fiber-based single-frequency ∼15-ns pulsed laser source at ∼1918.4 nm in master oscillator-power amplifier configuration. The pulsed fiber laser seed was achieved by directly modulating a continuouswave single-frequency fiber laser using an electro-optic modulator driven by an arbitrary waveform generator to pre-shape the pulses before amplification to mitigate pulse steepening and dynamic gain saturation. One piece of large (25-μm) core, polarization-maintaining highly thulium-doped germanate glass fiber was used in the power amplifier stage to boost the energy and the peak power of the 15-ns pulses to >0.5 mJ and >33 kW without any nonlinearities.
KW - 2-μm nanosecond pulses
KW - Fiber amplifier
KW - Single-frequency lasers
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U2 - 10.1109/LPT.2011.2178824
DO - 10.1109/LPT.2011.2178824
M3 - Article
AN - SCOPUS:84857256705
SN - 1041-1135
VL - 24
SP - 353
EP - 355
JO - IEEE Photonics Technology Letters
JF - IEEE Photonics Technology Letters
IS - 5
M1 - 6111443
ER -