Self-Seeded Mid-Infrared Generation in Periodically-Poled Lithium Niobate Waveguides

2017 ◽  
Author(s):  
Alex Lind ◽  
Abijith S. Kowligy ◽  
Daniel D. Hickstein ◽  
David Carlson ◽  
Nima Nader ◽  
...  
Keyword(s):  
Lithium Niobate ◽  
Periodically Poled ◽  
Mid Infrared ◽  
Periodically Poled Lithium Niobate

All-solid-state mid-infrared femtosecond optical parametric oscillator based on periodically-poled lithium niobate

1998 ◽  
Vol 146 (1-6) ◽  
pp. 147-150 ◽  
Author(s):  
Z.E Penman ◽  
P Loza-Alvarez ◽  
D.T Reid ◽  
M Ebrahimzadeh ◽  
W Sibbett ◽  
...  
Keyword(s):  
Solid State ◽  
Lithium Niobate ◽  
Optical Parametric Oscillator ◽  
Parametric Oscillator ◽  
Periodically Poled ◽  
Mid Infrared ◽  
Periodically Poled Lithium Niobate ◽  
Optical Parametric

scholarly journals Highly Efficient Mid-Infrared Generation from Low-Power Single-Frequency Fiber Laser Using Phase-Matched Intracavity Difference Frequency Mixing

2020 ◽  
Vol 10 (21) ◽  
pp. 7454
Author(s):  
Jiacheng Feng ◽  
Xi Cheng ◽  
Xiao Li ◽  
Peng Wang ◽  
Weihong Hua ◽  
...  
Keyword(s):  
Lithium Niobate ◽  
Low Power ◽  
Fiber Laser ◽  
Pump Wave ◽  
Difference Frequency ◽  
Single Frequency ◽  
Signal Wave ◽  
Periodically Poled ◽  
Mid Infrared ◽  
Periodically Poled Lithium Niobate

In this paper, we demonstrated efficient mid-infrared generation using a low-power 1064 nm single-frequency (SF) fiber laser based on phase-matched intracavity difference frequency generation (DFG) in a continuous-wave (CW) periodically poled lithium niobate (PPLN)-based optical parametric oscillator (OPO). This is the first time that the frequency down conversion of a low-power SF light source has been achieved using intracavity difference frequency mixing. A high power 1018 nm fiber laser was firstly used for building the parametric oscillation and providing the high power resonant signal wave. To realize an efficient DFG process between the SF pump wave and the intracavity signal wave, the temperature of periodically poled lithium niobate (PPLN) crystal was properly adjusted to satisfy the phase-matching conditions. Finally, the low-power 1064 nm SF pump wave was successfully converted to a 3.7 μm mid-infrared wave with a conversion efficiency of 21.6%. The conversion efficiency, to the best of our knowledge, is the highest for SF lasers in DFG processes. Meanwhile, taking advantage of SF laser pumping, a narrow linewidth of 271 pm (5.9 GHz) in the mid-infrared region was achieved without adding any etalons or devices in the cavity.

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