Broadband tunable optical parametric amplification from a single 50 MHz ultrafast fiber laser.
We have demonstrated a 0.7 microm - 1.9 microm wavelength-tunable light source based on a single-pass optical parametric amplification (OPA) in a multiperiod magnesium oxide-doped periodically poled lithium niobate crystal. The OPA pump was a frequency-doubled ultrafast ytterbium-doped fiber oscillator, and the residual 1040 nm laser power after frequency doubling was recycled to generate a supercontinuum seeding source. Compared with conventional OPAs, this system is free from timing jitter between the pump laser and the seeding source. Over 50% conversion efficiency was obtained with 10 nJ pump energy. Combined with a 50 MHz repetition rate, this versatile source is ideal for biomedical and spectroscopic applications.
Tzeng
Yan-Wei
YW
Department of Physics, National Taiwan University, Taipei, Taiwan, ROC.
Lin
Yen-Yin
YY
Huang
Chen-Han
CH
Liu
Jian-Ming
JM
Chui
Hsiang-Chen
HC
Liu
Hsiang-Lin
HL
Stone
James M
JM
Knight
Jonathan C
JC
Chu
Shi-Wei
SW
D000669:Amplifiers, Electronic; D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005336:Fiber Optic Technology / Q000295:instrumentation*; D007834:Lasers; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity