Patent ID: 11906797
Assignee: NEC CORPORATION
Field: Optics (Instruments)
Classification: CPC G  H | IPC G  H

Claim 0:
1. A pluggable optical module comprising:
a pluggable electric connector configured to connect with an optical communication apparatus;
a pluggable optical receptor configured to connect with an outer optical fiber transmitting a first optical signal;
an optical output module configured to output a second optical signal and a local oscillation light;
an optical receiver configured to receive the first optical signal by interfering with the local oscillation light;
a first printed circuit board configured to connect with the optical receiver;
a first optical fiber configured to transmit the first optical signal;
a second optical fiber configured to transmit the local oscillation light;
a third optical fiber configured to transmit the second optical signal; and
a guide configured to wind the first optical fiber, the second optical fiber and the third optical fiber,
wherein a part of the guide is located between a part of the first printed circuit board and a part of the optical output module.