68 citations · 219 across the 5 of their papers we have counts for
5 papers
Highly tunable repetition-rate multiplication of mode-locked lasers using all-fibre harmonic injection locking
Chan-Gi Jeon, Shuangyou Zhang, Junho Shin +1
Higher repetition-rate optical pulse trains have been desired for various applications such as high-bit-rate optical communication, photonic analogue-to-digital conversion, and mul…
Sub-20-Attosecond Timing Jitter Mode-Locked Fiber Lasers
Hyoji Kim, Peng Qin, Youjian Song +6
We demonstrate 14.3-attosecond timing jitter [integrated from 10 kHz to 94 MHz offset frequency] optical pulse trains from 188-MHz repetition-rate mode-locked Yb-fiber lasers. In o…
Frequency comb-based microwave transfer over fiber with instability using fiber-loop optical-microwave phase detectors
Kwangyun Jung, Junho Shin, Jinho Kang +3
We demonstrate a remote microwave/radio-frequency (RF) transfer technique based on the stabilization of a fiber link using a fiber-loop optical-microwave phase detector (FLOM-PD).…
Gigahertz repetition rate, sub-femtosecond timing jitter optical pulse train directly generated from a mode-locked Yb:KYW laser
Heewon Yang, Hyoji Kim, Junho Shin +5
We show that a 1.13-GHz repetition rate optical pulse train with 0.70 fs high-frequency timing jitter (integration bandwidth of 17.5 kHz - 10 MHz, where the measurement instrument-…
Ultralow Phase Noise Microwave Generation From Mode-Locked Er-Fiber Lasers With Subfemtosecond Integrated Timing Jitter
Kwangyun Jung, Junho Shin, Jungwon Kim
We demonstrate ultralow phase noise 10-GHz microwave signal generation from a free-running mode-locked Er-fiber laser with -142 and -157 dBc/Hz single-sideband absolute phase noise…