Compact spectroscopy system based on tunable organic semiconductor lasers

We applied a continuously tunable organic semiconductor thin film laser for high resolution transmission spectroscopy. Using a suitable encapsulation application of that low-cost laser device allowed us to realize a very compact and durable measurement system incorporating only very few optical comp...

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Bibliographic Details
Published in:Applied physics. B, Lasers and optics Lasers and optics, 2010-04, Vol.99 (1-2), p.47-51
Main Authors: Woggon, T., Klinkhammer, S., Lemmer, U.
Format: Article
Language:English
Subjects:
Access time
Devices
Durability
Engineering
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Lasers
Optical Devices
Optics
Organic semiconductors
Photonics
Physical Chemistry
Physics
Physics and Astronomy
Quantum Optics
Semiconductor lasers
laser diodes
Spectrometers
Spectroscopy
Tuning
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Summary:We applied a continuously tunable organic semiconductor thin film laser for high resolution transmission spectroscopy. Using a suitable encapsulation application of that low-cost laser device allowed us to realize a very compact and durable measurement system incorporating only very few optical components. To demonstrate the capability of our setup for high-resolution photospectroscopy, we measured the transmission curve of a narrow laser line filter. The resulting data was in good agreement with a measurement of the filter characteristic done using a commercial spectrometer. Our system is capable of measuring optical density (OD) values up to OD 5. A key for future systems is a novel low-cost mechanical tuning method for position-dependent distributed feedback lasers which enables high-speed tuning with wavelength access times under 10 ms independent of the tuning bandwidth.
ISSN:0946-2171
1432-0649
DOI:10.1007/s00340-010-3953-6