Published May 2012
| Version v1
Journal article
Fiber MOPA based tunable source for terahertz spectroscopy
Creators
- 1. Optoelectronics Research Centre, University of Southampton, Southampton, SO17 1BJ (United Kingdom)
- 2. School of Electrical and Electronic Engineering, University of Manchester, Manchester M13 9PL (United Kingdom)
- 3. Institute for Microwaves and Photonics, University of Leeds, Leeds LS2 9JT (United Kingdom)
Description
We have developed a terahertz spectrometer based on difference frequency generation of beams from an ytterbium fiber master oscillator power amplifier (MOPA) system. The spectrometer has a resolution of ∼ 2 GHz. It can be tuned rapidly over several hundred GHz, and a wider frequency range can be covered (0.7–2.5 THz demonstrated) by swapping in alternate seed lasers and adjusting the alignment of the beams into the difference frequency generation (DFG) crystal. The system was constructed entirely from commercially available fiber and fiber components. We present some demonstration data on water vapor absorption lines
Availability note (English)
Available from http://dx.doi.org/10.7452/lapl.201110143Additional details
Identifiers
Publishing Information
- Journal Title
- Laser physics letters (Internet)
- Journal Volume
- 9
- Journal Issue
- 5
- Journal Page Range
- p. 350-354
- ISSN
- 1612-202X
INIS
- Country of Publication
- Russian Federation
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 46020336
- Subject category
- S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
- Descriptors DEI
- CRYSTALS; GHZ RANGE; OPTICAL FIBERS; OPTICAL SPECTROMETERS; OPTICS; OSCILLATORS; PHOTON BEAMS; POWER AMPLIFIERS; SOLID STATE LASERS; THZ RANGE; WATER VAPOR; YTTERBIUM
- Descriptors DEC
- AMPLIFIERS; BEAMS; ELECTRONIC EQUIPMENT; ELEMENTS; EQUIPMENT; FIBERS; FLUIDS; FREQUENCY RANGE; GASES; LASERS; MEASURING INSTRUMENTS; METALS; RARE EARTHS; SPECTROMETERS; VAPORS