Abstract
An efficient tunable high-repetition-rate KTiOPO4 (KTP) optical parametric oscillator (OPO) was deployed as a compact terahertz (THz) source for the first time. The KTP OPO was intracavity pumped by an acousto-optical Q-switched Nd:YVO4 laser and emitted two tunable wavelengths near degeneracy. The OPO tuning range extended continuously from 2.068 to 2.191 μm with a maximum output power of 3.29 W at 24 kHz, corresponding to an optical-optical conversion efficiency of 20.69%, believed to be among the highest reported. A periodically inverted quasi-phase-matched GaAs crystal was used to generate the THz wave by the difference frequency generation (DFG) method based on a dual-wavelength laser. The maximum output THz power was 0.6 μW at 1.244 THz, and the DFG energy conversion efficiency was 4.32 × 10-7. This provides a potential practical palm-top tunable THz sources for portable applications.
| Original language | English (US) |
|---|---|
| Article number | 7457629 |
| Pages (from-to) | 1501-1504 |
| Number of pages | 4 |
| Journal | IEEE Photonics Technology Letters |
| Volume | 28 |
| Issue number | 14 |
| DOIs | |
| State | Published - Jul 15 2016 |
Fingerprint
Keywords
- difference frequency generation (DFG)
- gallium arsenide (GaAs)
- gallium arsenide (GaAs)
- optical parametric oscillator (OPO)
- quasi-phase-matching (QPM)
- terahertz (THz)
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Atomic and Molecular Physics, and Optics
- Electronic, Optical and Magnetic Materials
Cite this
High-Repetition-Rate Terahertz Generation in QPM GaAs With a Compact Efficient 2-μm KTP OPO. / Mei, Jialin; Zhong, Kai; Wang, Maorong; Liu, Pengxiang; Xu, Degang; Wang, Yuye; Shi, Wei; Yao, Jianquan; Norwood, Robert A; Peyghambarian, Nasser N.
In: IEEE Photonics Technology Letters, Vol. 28, No. 14, 7457629, 15.07.2016, p. 1501-1504.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - High-Repetition-Rate Terahertz Generation in QPM GaAs With a Compact Efficient 2-μm KTP OPO
AU - Mei, Jialin
AU - Zhong, Kai
AU - Wang, Maorong
AU - Liu, Pengxiang
AU - Xu, Degang
AU - Wang, Yuye
AU - Shi, Wei
AU - Yao, Jianquan
AU - Norwood, Robert A
AU - Peyghambarian, Nasser N
PY - 2016/7/15
Y1 - 2016/7/15
N2 - An efficient tunable high-repetition-rate KTiOPO4 (KTP) optical parametric oscillator (OPO) was deployed as a compact terahertz (THz) source for the first time. The KTP OPO was intracavity pumped by an acousto-optical Q-switched Nd:YVO4 laser and emitted two tunable wavelengths near degeneracy. The OPO tuning range extended continuously from 2.068 to 2.191 μm with a maximum output power of 3.29 W at 24 kHz, corresponding to an optical-optical conversion efficiency of 20.69%, believed to be among the highest reported. A periodically inverted quasi-phase-matched GaAs crystal was used to generate the THz wave by the difference frequency generation (DFG) method based on a dual-wavelength laser. The maximum output THz power was 0.6 μW at 1.244 THz, and the DFG energy conversion efficiency was 4.32 × 10-7. This provides a potential practical palm-top tunable THz sources for portable applications.
AB - An efficient tunable high-repetition-rate KTiOPO4 (KTP) optical parametric oscillator (OPO) was deployed as a compact terahertz (THz) source for the first time. The KTP OPO was intracavity pumped by an acousto-optical Q-switched Nd:YVO4 laser and emitted two tunable wavelengths near degeneracy. The OPO tuning range extended continuously from 2.068 to 2.191 μm with a maximum output power of 3.29 W at 24 kHz, corresponding to an optical-optical conversion efficiency of 20.69%, believed to be among the highest reported. A periodically inverted quasi-phase-matched GaAs crystal was used to generate the THz wave by the difference frequency generation (DFG) method based on a dual-wavelength laser. The maximum output THz power was 0.6 μW at 1.244 THz, and the DFG energy conversion efficiency was 4.32 × 10-7. This provides a potential practical palm-top tunable THz sources for portable applications.
KW - difference frequency generation (DFG)
KW - gallium arsenide (GaAs)
KW - gallium arsenide (GaAs)
KW - optical parametric oscillator (OPO)
KW - quasi-phase-matching (QPM)
KW - terahertz (THz)
UR - http://www.scopus.com/inward/record.url?scp=84971668255&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84971668255&partnerID=8YFLogxK
U2 - 10.1109/LPT.2016.2557583
DO - 10.1109/LPT.2016.2557583
M3 - Article
AN - SCOPUS:84971668255
VL - 28
SP - 1501
EP - 1504
JO - IEEE Photonics Technology Letters
JF - IEEE Photonics Technology Letters
SN - 1041-1135
IS - 14
M1 - 7457629
ER -