Vertical cavity surface emitting laser device having an extended

Details Vertical cavity surface emitting laser device having an extended Vertical cavity surface emitting laser device having an extended

1997-10-28

2000-02-15

Bovernick, Rodney

Coherent light generators

Particular resonant cavity

Distributed feedback

372 98, 372101, 372103, 372 45, 372 50, 372 46, H01S 308

Patent

active

060261110

ABSTRACT:
An extended VCSEL structure formed of a first DBR mirror, an active region, a second DBR mirror as partial reflector, and an extended cavity provided by a transparent conductive substrate wafer fused onto the second DBR mirror. The transparent conductive substrate also serves as a convex mirror with a highly reflective dielectric coating to complete the extended cavity VCSEL structure. The use of the extended cavity makes high power single mode operation achievable because an extended cavity introduces high modal loss to the high order laser modes while supporting the lowest order single mode. The large active area allows high output power from the VCSEL.

REFERENCES:
patent: 5115441 (1992-05-01), Kopf et al.
patent: 5317587 (1994-05-01), Ackley et al.
patent: 5530715 (1996-06-01), Shieh et al.

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