DFB laser diodes from 4000 nm to4600 nm
nanoplus single mode IC lasers
nanoplus is the only manufacturer world- wide routinely providing single and multi mode lasers at any wavelength from 760 to 6000 nm. At wavelengths up to 14 μm, QCLs complete nanoplus’ laser portfolio. Our IC lasers deliver single mode emission with well defined optical properties enabling a wide range of applications.
nanoplus lasers operate reliably in tens of thousands of installations worldwide, including chemical and metallurgical in- dustries, gas pipelines, power plants, med- ical systems, airborne and satellite applications.
key features
• very high spectral purity
• narrow linewidth
• excellent reliability
• wide variety of packaging options
• customer-specific designs available
Application areas
• high performance gas sensing for process and environmental control
• precision metrology
• atomic clocks
• spectroscopy
• space technology
nanoplus lasers with excellent performance are specifically designed and characterized to fit your needs. This data sheet summarizes typical properties of nanoplus DFB lasers in the range from 4000 nm to 4600 nm. In this wavelength regime e. g. SO2, CO2 and NOx can be detected with particularly high sensitivity, since the detection sensitivity typically increases at long wavelengths.
Overleaf data for DFB lasers optimized for NOx detection is shown as an example.
general ratings
symbol
unit
typical
optical output power
Pout
mW
> 1
typical maximum operating voltage
Vop
V
4-6
forward current
If
mA
70
side mode suppression ratio (SMSR)
dB
> 35
On request, lasers with specifically optimized proper- ties, e. g. higher output power, are available.
laser packaging options
TO66 with TEC and NTC, sealed other packaging options will follow soon, or may be discussed on request
nanoplus DFB laser diodes at 4470nmA wide variety of gas molecules exhibit characteristic absorption lines in the near infrared.DFB lasers emitting at 4470 nm are e. g. suited for highly sensitive detection of small NOx concentrations. For this application, highly stable laterally and longitudinally single mode lasers are required.
This data sheet reports performance data of nanoplus DFB lasers at this wavelength. Similar performance data are obtained in the entire wavelength range from 4000 nm to 4600 nm.
Fig. 1 Room temperature cw spectrum of a nanoplus interband cascade DFB laser operating at 4470 nm
In many applications, tempera- ture and/or current variations are used to adjust the laser emis- sion precisely to the target wavelength.
Fig. 2 Mode hop free tuning of 4470 nm based DFBs by current variation at different temperatures
electrooptical characteristics (T = 25 °C)
symbol
unit
typ
cpeak wavelength
λ
nm
4470
threshold current
Ith
mA
20
temperature tuning coefficient
CT
nm / K
0.35
current tuning coefficient
CI
nm / mA
0.2
slow axis (FWHM)
degree
35
fast axis (FWHM)
degrees
55
storage temperatures
TS
°C
+ 20
operational temperature at case
Tc
°C
+ 20
chip operation temperature Top °C -5
商品属性 [波长] 4000 nm-4600 nm [激光器类型] DFB