Bi-directional optical module with improved optical crosstalk

Details Bi-directional optical module with improved optical crosstalk Bi-directional optical module with improved optical crosstalk

2011-08-23

2011-08-23

Vanderpuye, Ken (Department: 2613)

Optical communications

Optical transceiver

Single device as transmitter and receiver

C359S199200

Reexamination Certificate

active

08005367

ABSTRACT:
The bi-directional optical module, which installs the receiver and the transmitter within one package, is disclosed with an improved optical crosstalk. The optical module provides a lens, a WDM filter and a photodiode (PD) on an axis of the single mode fiber coupled with the module, while, a laser diode (LD) in a position perpendicular to the optical axis. The WDM filter provides a multi-layered optical film on a primary surface and an edge in a side far from the LD and the (PD) makes an obtuse angle to the primary surface so as to prevent light from the LD and reflected at this edge from entering the PD.

REFERENCES:
patent: 7093988 (2006-08-01), Tsumori
patent: 2003/0202750 (2003-10-01), Okada et al.
patent: 2004/0071413 (2004-04-01), Tsumori
patent: 2004/0213583 (2004-10-01), Guenter
patent: 2007/0146881 (2007-06-01), Tanaka et al.
patent: 2004-271921 (2004-09-01), None

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