Method of making a tunable laser diode having a distributed feed

Details Method of making a tunable laser diode having a distributed feed Method of making a tunable laser diode having a distributed feed

1993-12-23

1994-10-25

Breneman, R. Bruce

Fishing, trapping, and vermin destroying

148DIG50, H01L 21203

Patent

active

053588983

ABSTRACT:
A distribution feedback laser diode, comprises a substrate, a waveguide layer provided on the substrate, an active layer provided on the waveguide layer, a diffraction grating provided at an interface between the substrate and the waveguide layer for reflecting an optical radiation formed in the active layer back and forth, a clad layer provided on the active layer for confining the optical radiation within the active layer, a plurality of segmented electrodes provided on the top surface of the clad layer along an elongated direction of the laser diode for injecting the carriers into the active layer, wherein at least one of the segmented electrodes is provided in correspondence to a part of the active layer in which the optical radiation formed in the active layer has a maximum intensity level, and a backside electrode provided at the bottom surface of the substrate for injecting the carriers into the active layer through the substrate.

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