Temporal wavelength multiplexing of a Quantum Cascade laser

Temporal wavelength multiplexing of a Quantum Cascade laser

A bi-directional and multi-wavelength Quantum Cascade (QC) laser based system is presented that is both time and wavelength multiplexed, that is, it can emit two widely different wavelengths, at two alternate time slots. The QC laser source emits at 10.8 mum wavelength for positive polarity current...

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Bibliographic Details
Published in:2009 IEEE International Conference on Indium Phosphide & Related Materials pp. 238 - 240
Main Authors: Toor, F., Sivco, D.L., Gmachl, C.F.
Format: Conference Proceeding
Language:English
Published: IEEE 01-05-2009
Subjects:
Adders
bi-directional
Bidirectional control
Circuits
Delay effects
Gas lasers
Multi-wavelength
Optical design
Optical interferometry
quantum cascade laser
Quantum cascade lasers
Semiconductor lasers
Stimulated emission
temporal multiplexing
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Summary:A bi-directional and multi-wavelength Quantum Cascade (QC) laser based system is presented that is both time and wavelength multiplexed, that is, it can emit two widely different wavelengths, at two alternate time slots. The QC laser source emits at 10.8 mum wavelength for positive polarity current and 8.6 mum for negative polarity current. A diode based adder circuit was designed to drive the QC laser such that it added the two opposite polarity current pulses with a variable time delay. Versatile multi-wavelength and time multiplexed QC laser light signals with time delays of 0.5 s to 2.5 mus were obtained.
ISBN:9781424434329
1424434327
ISSN:1092-8669
DOI:10.1109/ICIPRM.2009.5012481