FBG Stabilized Lasers are compact laser diodes designed for use as pump lasers. The butterfly packages contain an integrated thermoelectric cooler (TEC) and thermistor. The region of the fiber marked by a pair of black bands contains a grating etched into the fiber, which acts as a Bragg reflector to provide feedback to the laser. The FBG-stabilized design produces an output that is spectrally broadened by satellite modes. A FBG-stabilized laser is not a single longitudinal mode laser; while it is stabilized in terms of frequency, the gain curve will contain many different modes. Additionally, these Bragg gratings are relatively insensitive to temperature (<0.02 nm/°C). It should be noted that for the SM-pigtailed laser, stress-induced birefingence on the fiber may change the output spectrum of the laser diode. Due to the properties of the fiber, the PM-pigtailed lasers will not be affected.
The 976nm pump module uses FBG stabilization to "lock" the emission wavelength. It provides a noise-free narrowband spectrum, even under changes in temperature, drive current, and optical feedback. Wavelength selection is available for applications that require the highest performance in spectrum control with the highest available powers.
The 976 nm FBG lasers produce a stable output of ≥300 mW with a single mode fiber pigtail or between 500 and 900 mW with a polarization-maintaining fiber pigtail. With a spectral bandwidth of <1 nm, they are well suited for core pumping of Erbium-doped fibers, such as in Erbium-doped fiber amplifiers, mode-locked oscillators, and CW lasers.
Features:
Wavelength Stabilized by a Fiber Bragg Grating
976 nm 974 nm Center Wavelength with Output Powers from 300 to 900 mW
Integrated Thermoelectric Cooler (TEC) and Thermistor
Spectral Bandwidth <2 nm
14-Pin, Hermetically Sealed Butterfly Package
Pigtailed Single Mode or Polarization-Maintaining Optical Fiber with FC/APC Connector
(2.0 mm Narrow Key)
Applications:
Core Pumping Erbium-Doped Fiber Devices:
Low-Noise CW Lasers
Mode-Locked Oscillators
Erbium-Doped Fiber Amplifiers (EDFA)
Optical Tweezer Systems
Raman Amplification
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