Injection laser assembly incorporating a monitor photosensor

Details Injection laser assembly incorporating a monitor photosensor Injection laser assembly incorporating a monitor photosensor

1995-11-17

1997-09-16

Bovernick, Rodney B.

Coherent light generators

Particular active media

Semiconductor

385 34, 372 19, H01S 3098, H01S 319, G02B 632

Patent

active

056688237

ABSTRACT:
An injection laser assembly mounted upon a crystal substrate [10] employing a back facet monitor is disclosed. A graded index lens [34] focuses light from the, typically, high in diversion and low intensity rays output from the back facet of the laser [30]. To allow repeatable and efficient coupling the graded index lens [34] is mounted within a groove defined in the crystal. Several configurations for mounting a photodiode sensor [P1,P2] are possible.

REFERENCES:
patent: 4583226 (1986-04-01), Liou
patent: 4854659 (1989-08-01), Hammerslag et al.
patent: 4983009 (1991-01-01), Musk

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