Thermally widely tunable laser diodes with distributed feedback

2005 ◽  
Author(s):  
R. Todt
Keyword(s):  
Laser Diodes ◽  
Tunable Laser ◽  
Distributed Feedback

Thermally widely tunable laser diodes with distributed feedback

2005 ◽  
Vol 87 (2) ◽  
pp. 021103 ◽  
Author(s):  
R. Todt ◽  
T. Jacke ◽  
R. Meyer ◽  
M.-C. Amann
Keyword(s):  
Laser Diodes ◽  
Tunable Laser ◽  
Distributed Feedback

1.5μm λ/4 shifted multiple quantum well distributed feedback laser diodes

1988 ◽  
Vol 24 (23) ◽  
pp. 1408 ◽  
Author(s):  
T. Sasaki ◽  
S. Takano ◽  
N. Henmi ◽  
H. Yamada ◽  
M. Kitamura ◽  
...  
Keyword(s):  
Quantum Well ◽  
Multiple Quantum Well ◽  
Laser Diodes ◽  
Distributed Feedback ◽  
Multiple Quantum ◽  
Distributed Feedback Laser

1.5 μm multiple-quantum-well distributed feedback laser diodes grown on corrugated InP by MOVPE

1988 ◽  
Vol 24 (16) ◽  
pp. 1045 ◽  
Author(s):  
M. Kitamura ◽  
S. Takano ◽  
N. Henmi ◽  
T. Sasaki ◽  
H. Yamada ◽  
...  
Keyword(s):  
Quantum Well ◽  
Multiple Quantum Well ◽  
Laser Diodes ◽  
Distributed Feedback ◽  
Multiple Quantum ◽  
Distributed Feedback Laser

scholarly journals Measurement of Atmospheric Dimethyl Sulfide with a Distributed Feedback Interband Cascade Laser

Sensors ◽  
2018 ◽  
Vol 18 (10) ◽  
pp. 3216 ◽  
Author(s):  
Shuanke Wang ◽  
Zhenhui Du ◽  
Liming Yuan ◽  
Yiwen Ma ◽  
Xiaoyu Wang ◽  
...  
Keyword(s):  
Absorption Spectroscopy ◽  
Dimethyl Sulfide ◽  
Tunable Laser ◽  
Distributed Feedback ◽  
Integration Time ◽  
Laser Absorption Spectroscopy ◽  
Atmospheric Measurements ◽  
Pure Nitrogen ◽  
Laser Absorption ◽  
Interband Cascade Laser

This paper presents a mid-infrared dimethyl sulfide (CH3SCH3, DMS) sensor based on tunable laser absorption spectroscopy with a distributed feedback interband cascade laser to measure DMS in the atmosphere. Different from previous work, in which only DMS was tested and under pure nitrogen conditions, we measured DMS mixed by common air to establish the actual atmospheric measurement environment. Moreover, we used tunable laser absorption spectroscopy with spectral fitting to enable multi-species (i.e., DMS, CH4, and H2O) measurement simultaneously. Meanwhile, we used empirical mode decomposition and greatly reduced the interference of optical fringes and noise. The sensor performances were evaluated with atmospheric mixture in laboratory conditions. The sensor’s measurement uncertainties of DMS, CH4, and H2O were as low as 80 ppb, 20 ppb, and 0.01% with an integration time 1 s, respectively. The sensor possessed a very low detection limit of 9.6 ppb with an integration time of 164 s for DMS, corresponding to an absorbance of 7.4 × 10−6, which showed a good anti-interference ability and stable performance after optical interference removal. We demonstrated that the sensor can be used for DMS measurement, as well as multi-species atmospheric measurements of DMS, H2O, and CH4 simultaneously.

1.4 [micro sign]m continuous-wave GaInNAs distributed feedback laser diodes

2003 ◽  
Vol 39 (25) ◽  
pp. 1815 ◽  
Author(s):  
D. Gollub ◽  
S. Moses ◽  
M. Kamp ◽  
A. Forchel
Keyword(s):  
Continuous Wave ◽  
Laser Diodes ◽  
Distributed Feedback ◽  
Distributed Feedback Laser

GaInNAs-based distributed feedback laser diodes emitting at 1.5 [micro sign]m

2004 ◽  
Vol 40 (7) ◽  
pp. 427 ◽  
Author(s):  
D. Gollub ◽  
S. Moses ◽  
M. Fischer ◽  
M. Kamp ◽  
A. Forchel
Keyword(s):  
Laser Diodes ◽  
Distributed Feedback ◽  
Distributed Feedback Laser
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