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Choose Wavelength
DFB Laser
Wavelength
Top Wavelength
ICL
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4524 nm & 4534 nm
TOP Wavelength

Discover Our Wavelengths

Distributed Feedback Laser

4524 nm & 4534 nm
TOP Wavelength

DFB interband cascade lasers at 4524 nm and 4534 nm are used for nitrogen oxide detection. Please have a look at the key features, specifications and applications.
Specifications
Mountings & Accessories
Applications
Papers & Links
Specifications
parameters
symbol
unit
minimum
typical
maximum
parameters
operating wavelength (at Top, Iop)
symbol
λop
unit
nm
minimum
typical
4524 & 4534
maximum
parameters
optical output power (at λop)
symbol
Pop
unit
mW
minimum
typical
8
maximum
parameters
operating current
symbol
Iop
unit
mA
minimum
typical
maximum
120
parameters
operating voltage
symbol
Vop
unit
V
minimum
typical
5
maximum
parameters
threshold current
symbol
Ith
unit
mA
minimum
20
typical
30
maximum
40
parameters
side mode suppression ratio
symbol
SMSR
unit
dB
minimum
typical
> 35
maximum
parameters
current tuning coefficient
symbol
CI
unit
nm / mA
minimum
typical
0.12
maximum
parameters
temperature tuning coefficient
symbol
CT
unit
nm / K
minimum
typical
0.45
maximum
parameters
operating chip temperature
symbol
Top
unit
°C
minimum
+15
typical
+20
maximum
+40
parameters
operating case temperature (non-condensing)
symbol
TC
unit
°C
minimum
-20
typical
+25
maximum
+55
parameters
storage temperature (non-condensing)
symbol
TS
unit
°C
minimum
-30
typical
+20
maximum
+70
Download data sheet
Mountings & Accessories
SM-BTF - our fiber-coupled workhorse
Download data sheet
  • availability: 760 nm - 5500 nm
  • TEC: integrated TEC
  • NTC: integrated NTC
  • plug&play: fiber-coupled beam
  • size: large footprint
  • costs: higher cost than free space
TO66 - our workhorse for ICLs
Download data sheet
  • availability: 2800 nm - 6500 nm
  • TEC: integrated large TEC
  • NTC: integrated NTC
  • cap: AR coated cap (optional)
  • window: AR coated window (optional)
  • plug&play: collimation required
  • size: small footprint
  • costs: low cost
chip on heatspreader - high-end OEM integration
Download data sheet
  • availability: 760 nm - 6000 nm
  • TEC: no TEC
  • NTC: integrated NTC
  • cap: NA
  • window: NA
  • plug&play: collimation required
  • size: smallest footprint
  • costs: low cost
Heatsink for TO5 / TO66
Download data sheet
  • availability: 760 nm - 6500 nm
  • NTC: integrated (optional)
  • heat distribution: warranted
  • connectors: for laser diode driver & temperature controller
  • posts: M6 thread for optical table
  • cage system: standard
  • collimation: none
Lens on cap
Download data sheet
  • availability: 1850 nm - 6500 nm
  • heat distribution: none, use separate heatsink
  • connectors: TO66 connectors only
  • posts: none, use separate heatsink
  • cage system: none, use separate heatsink
  • collimation: high-end collimation, divergence < 4 mrad
Applications
CO2 & NOx
Emission control of exhaust fumes: CO2 and NOx

Guided by environmental policies, the automobile industry is concerned to reduce the carbon footprint of vehicles. Automotive suppliers develop innovative combustion engines to control CO2 and NOx concentration in exhaust fumes.

[ 198 , 115 ]
NOx
Monitoring of breath gas: NOx

The field of breath analysis considers NOX as a biomarker for asthma and other pulmonary diseases. This new technology becomes more established for clinical applications. It is a cost-effective and non-invasive method of diagnosis and treatment monitoring.

[ 116 , 49 ]
NOx
Emission control of flue gases: NOx

NOx is produced during fuel combustion at power plants and other industrial facilities. When it reacts with SO2 it causes acid rain. For this reason NOx and SO2 emissions are restricted and need to be monitored.

[ 67 ]
Papers & Links
# 178 Quartz-Enhanced Photoacoustic Sensors for Detection of Eight Air Pollutants
R. De Palo, A. Elefante, G. Biagi, F. Paciolla, R. Weih, V. Villada, A. Zifarelli, M. Giglio, A. Sampaolo, V. Spagnolo, P. Patimisco, Adv. Phot. Res., Vo. 4, Iss. 6, 2023,
# 151 The interband cascade laser
J. R. Meyer, W. Bewley, C. L. Canedy, C. S. Kim, M. Kim, C. D. Merritt, I. Vurgaftman, Photonics, Vol. 7, No. 3 (75), 2020,
# 131 Unveiling quantum-limited operation of interband cascade lasers
S. Borri , M. Siciliani de Cumis , S. Viciani , F. D’Amato, P. De Natale, APL Phot., Vol.5, Iss.3, 2020, 036101,
# 117 The driver design for N2O gas detection system based on tunable interband cascade laser
L. Liao, J. Zhang, D. Dong, E3S Web Conf., Vol.78, 2019, 03002.,
# 64 Interband Cascade Lasers - Topical Review
I. Vurgaftman, R. Weih, M. Kamp, C.L. Canedy, C.S. Kim, M. Kim, W.W. Bewley, C.D. Merritt, J. Abell, S. Hoefling, Phys. D: Appl. Phys., 48, 2015, pp. 123001-12017.,
# 63 Breath Analysis Using Laser Spectroscopic Techniques: Breath Biomarkers, Spectral Fingerprints, and Detection Limits
C. Wang and P. Sahay, Sensors, 9, 2009, 8230 - 8262,
# 50 Mid-IR difference frequency laser-based sensors for ambient CH4, CO, and N2O monitoring;
J. J. Scherer, J. B. Paul, H. J. Jost, Marc L. Fischer, Appl. Phys. B, 109, 3, November 2017, pp. 271-277.,
# 49 Spectroscopic monitoring of NO traces in plants and human breath: applications and perspectives
S. M. Cristescu, D. Marchenko, J. Mandon, K. Hebelstrup, G. W. Griffith, L. A. J. Mur, F. J. M. Harren, Appl. Phys. B,, 109, 3, November 2012, pp. 203-211.,
# 31 QCL based NO Detection
M. Wolff, J. Koeth, L. Hildebrandt, P. Fuchs; 16th International Conference on Photoacoustic and Photothermal Phenomena.,
# 18 Monomode Interband Cascade Lasers at 5.2 µm for Nitric Oxide Sensing
M. von Edlinger, J. Scheuermann, R. Weih, C. Zimmermann, L. Naehle, M. Fischer, J. Koeth , IEEE Phot. Tech. Lett, 26, 5, 2014, pp. 480-482.,
# 11 Quantum cascade laser linewidth investigations for high resolution photoacoustic spectroscopy
M. Germer, M. Wolff , Appl. Opt., 48, 4, 2009, pp. B80-B86.,
# 9 DFB Lasers Between 760 nm and 16 µm for Sensing Applications
W. Zeller, L. Naehle, P. Fuchs, F. Gerschuetz, L. Hildebrandt, J. Koeth , Sensors, 10, 2010, pp. 2492-2510,

Optical properties

nanoplus distributed feedback lasers show outstanding spectral, tuning and electrical properties.
Spectrum 4524 nm DFB

Typical spectrum of a nanoplus 4524 nm distributed feedback interband cascade laser

Tuning 4524 nm DFB

Typical mode hop free tuning of a nanoplus 4524 nm distributed feedback interband cascade laser

PI Curve 4524 nm DFB

Typical power, current and voltage characteristics of a nanoplus 4524 nm distributed feedback interband cascade laser

Learn more

Product Brief

More information
nanoplus uses a unique and patented technology for DFB laser manufacturing. We apply a lateral metal grating along the ridge waveguide, which is independent of the material system. Read more about our patented distributed feedback technology.
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