Connecting method of optical devices, and optical apparatus

Details Connecting method of optical devices, and optical apparatus Connecting method of optical devices, and optical apparatus

2005-03-22

2005-03-22

Bovernick, Rodney (Department: 2874)

Optical waveguides

Polarization without modulation

C385S027000, C359S483010

Reexamination Certificate

active

06870972

ABSTRACT:
The present invention aims at providing a connecting method of optical devices capable of suppressing a periodic wavelength dependence loss and the like, due to the inter-polarization-mode interference caused when connecting a plurality of optical devices by using an optical path having a polarization-preserving characteristic, and an optical apparatus applied with the connecting method. To this end, the connecting method according to the present invention, is to connect a plurality of optical devices to one another by using an optical path of polarization-preserving type having optical characteristics in which a light is propagated along two different polarization axes for substantially equal distances. Thus, even if the polarization direction of the light input/output to/from the respective optical devices is not completely coincident with the direction of the polarization axis of the optical path, it is possible to offset the periodic wavelength dependence loss and the like caused by the inter-polarization-mode interference in the optical path, to be suppressed.

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