DFB laser diodes from 760 nm to 830 nm
nanoplus single mode laser diodes
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 patented distributed feedback laser diodes 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 applica- tions.
key features
• very high spectral purity
• narrow linewidth typically < 3 MHz
• 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 760 nm to 830 nm. Overleaf data for lasers used for high performance O2 sensing are given as an example.
general ratings (T = 25 °C)
symbol
unit
typical
optical output power
Pout
mW
5
typical maximum operating voltage
Vop
V
2
forward current
If
mA
30
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
TO5.6 header with or without cap
TO5 header with TEC and NTC
butterfly housing with SM or PM fiber
nanoplus DFB laser diodes at 760 nm
A wide variety of gas molecules exhibit characteristic absorption lines in the near infrared. At about 760 nm for example, there is a strong absorption line of O2, which can be used for laser based sensing with very high sensitivity. This data sheet reports performance data of laterally and longitudinally single mode nanoplus DFB lasers at this wavelength. Similar performance data are obtained in the entire wavelength range from 760 nm to 830 nm.
Fig. 1Room temperature cw spec- trum of a nanoplus DFB laser diode operating at 760 nm
In many applications, temper- ature and / or current varia- tions are used to adjust the laser emission precisely to the target wavelength, here on and off the O2 absorption.
Fig. 2Mode hop free tuning of a na- noplus 760 nm DFB laser diode by current variation at different temperatures
electrooptical characteristics (T = 25 °C)
symbol
unit
min
typ
max
peak wavelength
λ
nm
759
760
761
threshold current
Ith
mA
10
15
30
temperature tuning coefficient
CT
nm / K
0.04
0.05
0.07
current tuning coefficient
CI
nm / mA
0.010
0.020
0.025
slow axis (FWHM)
degrees
30
35
40
fast axis (FWHM)
degrees
50
60
65
emitting area
W x H
μm x μm
1. 2 x 1.3
1.5 x 2
2 x 2. 2
storage temperatures
TS
°C
- 40
+ 20
+ 80
operational temperature at case
Tc
°C
- 20
+ 25
+ 50
商品属性 [波长] 760-830nm