Optical waveguides – Polarization without modulation
Reexamination Certificate
2006-09-26
2006-09-26
Pak, Sung (Department: 2874)
Optical waveguides
Polarization without modulation
C385S014000, C385S039000, C385S049000
Reexamination Certificate
active
07113658
ABSTRACT:
To provide optical modules and optical transmission devices that are suitable for communication forms using multimode optical fibers, an optical module includes a surface-emitting type semiconductor laser that emits polarized light oscillating in a multimode which is preferentially oriented in two given polarization axes, and an optical member that demonstrates at least one function among a transmission function, a reflection function, a refraction function, and a diffraction function alternatively to a predetermined polarization. The optical member is disposed such that a principal plane thereof intersects with a traveling direction of emission light of the surface-emitting type semiconductor laser and a polarization axis of the polarization plane does not overlap with the polarization axes of the emission light of the surface-emitting type semiconductor laser.
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Oliff & Berridg,e PLC
Pak Sung
Stein James D.
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