Details
| Original language | English |
|---|---|
| Number of pages | 11 |
| Journal | Optics express |
| Volume | 30 |
| Issue number | 1 |
| Early online date | 20 Dec 2021 |
| Publication status | Published - 3 Jan 2022 |
| Externally published | Yes |
Abstract
We demonstrate a femtosecond tunable light source with a variable pulse repetition rate based on a synchronously pumped fiber-feedback optical parametric oscillator (FFOPO) that incorporates an extended-cavity design. The repetition rate can be reduced by an acousto-optical modulator in the FFOPO pump beam. The extended FFOPO cavity supports signal oscillation down to the 64 th subharmonic. The high nonlinearity of the FFOPO threshold suppresses signal output for residual pump pulses that are transmitted by the pulse picker. We characterize the temporal pulse contrast ratio of the FFOPO signal output with a second-order cross-correlation measurement. This FFOPO system enables pulse picking with extraordinarily high values up to 111 dB suppression of adjacent pulses and exhibits a temporal contrast ratio that exceeds 130 dB. It generates fs-pulses with tunable wavelength from 1415–1750 nm and 2.5–3.8 µm and variable repetition rates ranging from 640 kHz to 41 MHz.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Atomic and Molecular Physics, and Optics
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In: Optics express, Vol. 30, No. 1, 03.01.2022.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Femtosecond tunable light source with variable repetition rate between 640 kHz and 41 MHz with a 130 dB temporal pulse contrast ratio
AU - Floess, Moritz
AU - Steinle, Tobias
AU - Gerhardt, Ilja
AU - Giessen, Harald
N1 - Publisher Copyright: © 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
PY - 2022/1/3
Y1 - 2022/1/3
N2 - We demonstrate a femtosecond tunable light source with a variable pulse repetition rate based on a synchronously pumped fiber-feedback optical parametric oscillator (FFOPO) that incorporates an extended-cavity design. The repetition rate can be reduced by an acousto-optical modulator in the FFOPO pump beam. The extended FFOPO cavity supports signal oscillation down to the 64 th subharmonic. The high nonlinearity of the FFOPO threshold suppresses signal output for residual pump pulses that are transmitted by the pulse picker. We characterize the temporal pulse contrast ratio of the FFOPO signal output with a second-order cross-correlation measurement. This FFOPO system enables pulse picking with extraordinarily high values up to 111 dB suppression of adjacent pulses and exhibits a temporal contrast ratio that exceeds 130 dB. It generates fs-pulses with tunable wavelength from 1415–1750 nm and 2.5–3.8 µm and variable repetition rates ranging from 640 kHz to 41 MHz.
AB - We demonstrate a femtosecond tunable light source with a variable pulse repetition rate based on a synchronously pumped fiber-feedback optical parametric oscillator (FFOPO) that incorporates an extended-cavity design. The repetition rate can be reduced by an acousto-optical modulator in the FFOPO pump beam. The extended FFOPO cavity supports signal oscillation down to the 64 th subharmonic. The high nonlinearity of the FFOPO threshold suppresses signal output for residual pump pulses that are transmitted by the pulse picker. We characterize the temporal pulse contrast ratio of the FFOPO signal output with a second-order cross-correlation measurement. This FFOPO system enables pulse picking with extraordinarily high values up to 111 dB suppression of adjacent pulses and exhibits a temporal contrast ratio that exceeds 130 dB. It generates fs-pulses with tunable wavelength from 1415–1750 nm and 2.5–3.8 µm and variable repetition rates ranging from 640 kHz to 41 MHz.
UR - http://www.scopus.com/inward/record.url?scp=85122243512&partnerID=8YFLogxK
U2 - 10.1364/OE.439226
DO - 10.1364/OE.439226
M3 - Article
VL - 30
JO - Optics express
JF - Optics express
SN - 1094-4087
IS - 1
ER -