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Home: Products > Laser Diodes > Tapered Amplifiers
Tapered Amplifier
Diodes
Description:
Tapered
Amplifier Diodes are used for amplifiying laser light from typically 10mW ..
50mW up to power values of 500mW ... 1500mW. At one side of the laser chip,
tapered diode lasers are identical to conventional Fabry Perot lasers. At the
opposite side of the laser chip, they are broad area lasers. Inside of the chip,
the internal waveguide is tapered for getting a propper matching between both
side of the laser chip. Typical geometrical sizes of the laser chip are
2750µm x 500µm x 200µm (length x width x height). The laser chip is grown by
MOVPE of compound semiconductor material. The optical gain is provided by
double heterostructure which include several Quantum Wells for electronic
confinement. The surfaces of the laser chip act as cavity mirrors due to
the difference of the refractive index of the laser material and the surrounding
air. The rear facet and the front facet of the laser chip are provided
with an anti-reflcetion for avoiding laser action of the tapered amplifiyer
itself. High power devices are available with up to 0.5W at 740nm and 2W at
980nm.  There are different versions available. The tapered laser
chips are mounted as chip on carrier.
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