1550nm DFB (distributed feedback) laser

DFB Butterfly Fiber Coupled Laser
Leirte DFB butterfly fiber coupled laser adopts butterfly hermetic package and DFB distributed feedback cavity, featuring excellent wavelength stability and narrow linewidth.

- Optional wavelengths: 1064nm, 1550nm infrared
- 105μm multimode fiber, numerical aperture NA 0.22
- Standard fiber length 100cm
- Optional connectors: FC/PC, FC/APC, SMA905
- Butterfly hermetic package with built-in TEC cooler
- Narrow linewidth, ultra-low wavelength drift
- CW continuous wave output, high spectral purity
- Strict aging test, long service life
- Sample order and customized parameters supported

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Detail

This DFB butterfly fiber coupled laser is a distributed feedback laser diode with hermetic butterfly packaging. Integrated with TEC temperature control, it realizes stable, locked narrow-linewidth laser output. The laser beam is coupled into 105μm multimode fiber for convenient light delivery. It is the ideal laser source for high-precision optical systems requiring strict wavelength stability, different from FP lasers with broad spectrum.

Key Features

DFB distributed feedback resonant cavity, narrow linewidth
Butterfly hermetic seal package, built-in TEC temperature control
Low wavelength drift, excellent spectral stability
105μm multimode fiber, NA 0.22
Available infrared wavelengths: 1064 nm, 1550 nm
Optional fiber connectors: FC/PC, FC/APC, SMA905
Standard fiber length: 100 cm
CW continuous wave operation
High spectral purity, low noise
Strict factory aging and wavelength calibration
Accept sample testing and custom requirements

Applications

Fiber optic sensing system
Gas spectroscopy & gas detection
Interferometry and precision optical measurement
Optical communication testing equipment
LiDAR and coherent detection
High-precision laboratory optical experiments

FAQ

Q: What is DFB butterfly fiber coupled laser?DFB means Distributed Feedback laser diode. Butterfly package integrates TEC temperature controller, which can lock wavelength, deliver narrow linewidth light for precision optical sensing.

Q: What is the difference between DFB laser and FP laser?DFB laser has narrow linewidth and stable single wavelength, perfect for spectroscopy and sensing. FP laser has wider spectrum, mainly used for high-power pumping and illumination.

Q: Does this butterfly DFB laser include TEC?

Yes, the butterfly package is equipped with built-in TEC temperature control to keep wavelength stable under changing ambient temperature.

Q: What fiber and connector options are available?It comes with 105μm multimode fiber, optional FC/PC, FC/APC and SMA905 fiber connectors.

Q: Can I get samples for optical sensing test?Yes, we support sample orders. Please inform us the wavelength, power and connector you need.