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Compact, 2.95-GHz repetition-rate femtosecond optical parametric oscillator with tunable pulse repetition frequency
- Source :
- Optics Communications. 500:127339
- Publication Year :
- 2021
- Publisher :
- Elsevier BV, 2021.
-
Abstract
- We report a compact femtosecond optical parametric oscillator (OPO) with a tunable repetition rate that is harmonically pumped using a 52.5 MHz Yb-doped fiber laser system. By reducing the OPO cavity length, the repetition rate can be adjusted successively from 1.935 to 2.95 GHz at 52.5 MHz intervals. The multiplication of the repetition rate is achieved by placing a nonlinear crystal in a compact linear cavity, and the minimum cavity length is 47.8 mm. The maximum signal power (205.2 mW) at 2.04 GHz is obtained at an input pump power of 2.35 W and a central wavelength of 1472 nm. The central wavelength of the signal pulses can be tuned from 1383 to 1596 nm. To the best of our knowledge, 2.95 GHz is the highest repetition rate achieved using a femtosecond OPO based on an ultrashort cavity with a length that is N times (N is an integer) shorter than that of the pump cavity.
- Subjects :
- Pulse repetition frequency
Materials science
Repetition (rhetorical device)
business.industry
Physics::Optics
Signal
Atomic and Molecular Physics, and Optics
Electronic, Optical and Magnetic Materials
Power (physics)
Wavelength
Optics
Fiber laser
Femtosecond
Optical parametric oscillator
Electrical and Electronic Engineering
Physical and Theoretical Chemistry
business
Subjects
Details
- ISSN :
- 00304018
- Volume :
- 500
- Database :
- OpenAIRE
- Journal :
- Optics Communications
- Accession number :
- edsair.doi...........c4630cbec0a6cb7a9df40ff623dca792