Laser diode device having a protective layer on its light-emitti

Details Laser diode device having a protective layer on its light-emitti Laser diode device having a protective layer on its light-emitti

1991-11-06

1994-10-11

Davie, James W.

Coherent light generators

Particular active media

Semiconductor

H01S 319

Patent

active

053553853

ABSTRACT:
A laser diode in which a laser diode chip having a light-emitting end face is resin-encapsulated by means of an encapsulating resin layer constituted by an epoxy-based resin or the like. An end-face-breakage preventing layer formed of a silicon-based resin having a high coefficient of light absorption in the wavelength band of a laser beam and a high bond energy is formed on the light-emitting end face. The end-face-breakage preventing layer 10 has a thickness of approximately 20 to 30 .mu.m.

REFERENCES:
patent: 4852112 (1989-07-01), Kagawa et al.
patent: 4951291 (1990-08-01), Miyauchi et al.
patent: 4951292 (1990-08-01), Kuindersma et al.
patent: 4962985 (1990-10-01), LeGrange
patent: 4975922 (1990-12-01), Sakane et al.
patent: 4985370 (1991-01-01), Ponjee et al.

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