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Projektleiter Halbleiterchipentwicklung Optoelektronik
Entwicklungsingenieur III-V Halbleiter basierte Laser und Detektoren
Ausbildungsplatz Mikrotechnologe

1278.8 nm
TOP Wavelength

Discover Our Wavelengths

Distributed Feedback Laser

1278.8 nm
TOP Wavelength

DFB laser diodes at 1278.8 nm are used for hydrogen fluoride detection. Please have a look at the key features, specifications and applications.

Specifications
Mountings & Accessories
Papers & Links
Specifications
parameters
symbol
unit
minimum
typical
maximum
parameters

operating wavelength (at Top, Iop)

symbol

λop

unit

nm

minimum
typical

1278.8

maximum
parameters

optical output power (at λop)

symbol

Pop

unit

mW

minimum
typical

20

maximum
parameters

operating current

symbol

Iop

unit

mA

minimum
typical

70

maximum
parameters

operating voltage

symbol

Vop

unit

V

minimum
typical

2

maximum
parameters

threshold current

symbol

Ith

unit

mA

minimum

12

typical

15

maximum

25

parameters

side mode suppression ratio

symbol

SMSR

unit

dB

minimum
typical

> 35

maximum
parameters

current tuning coefficient

symbol

CI

unit

nm / mA

minimum

0.007

typical

0.01

maximum

0.02

parameters

temperature tuning coefficient

symbol

CT

unit

nm / K

minimum

0.07

typical

0.09

maximum

0.1

parameters

operating chip temperature

symbol

Top

unit

°C

minimum

+20

typical

+25

maximum

+50

parameters

operating case temperature (non-condensing)

symbol

TC

unit

°C

minimum

-20

typical

+25

maximum

+50

parameters

storage temperature (non-condensing)

symbol

TS

unit

°C

minimum

-40

typical

+20

maximum

+80

Mountings & Accessories
TO56 - the absolute basic
  • availability: 760 nm - 3000 nm
  • TEC: no TEC
  • NTC: no NTC
  • cap: uncoated cap (optional)
  • window: uncoated window (optional)
  • plug&play: collimation required
  • size: small footprint
  • costs: low cost
TO5 - our workhorse
  • availability: 760 nm - 3000 nm
  • TEC: integrated TEC
  • NTC: integrated NTC
  • cap: AR coated cap (optional)
  • window: AR coated window (optional)
  • plug&play: collimation required
  • size: small footprint
  • costs: low cost
c-mount - basic OEM integration
  • availability: 760 nm - 3000 nm
  • TEC: no TEC
  • NTC: no NTC
  • cap: NA
  • window: NA
  • plug&play: collimation required
  • size: low cost
SM-BTF - our fiber-coupled workhorse
  • 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
PM-BTF - high-end fiber coupling
  • availability: 1064 nm - 2050 nm
  • TEC: integrated TEC
  • NTC: integrated NTC
  • plug&play: fiber-coupled beam
  • size: large footprint
  • costs: higher costs than free space
chip on heatspreader - high-end OEM integration
  • 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
  • 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
Heatsink for TO5 with collimation
  • availability: 760 nm - 1850 nm
  • heat distribution: warranted
  • connectors: for laser diode driver & temperature controller
  • posts: M6 thread for optical table
  • cage system: standard
  • collimation: collimation with up to 40 % power loss

Optical properties

nanoplus distributed feedback lasers show outstanding spectral, tuning and electrical properties.

Spectrum 1279 nm DFB

Typical spectrum of a nanoplus 1279 nm distributed feedback laser diode

Tuning 1279 nm DFB

Typical mode hop free tuning of a nanoplus 1279 nm distributed feedback laser diode

PI Curve 1279 nm DFB

Typical power, current and voltage characteristics of a nanoplus 1279 nm distributed feedback laser diode

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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